Tag Archives: management

Building An Integrated Pest Management Plan – Part 6

By Phil Gibson
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This is the sixth and final in the series of articles designed to introduce an integrated pest management framework for cannabis cultivation facilities. To see Part One, an overview of the plan and pest identification, click here. For Part Two, on pest monitoring and record keeping, click here. For Part Three, on preventative measures, click here. For Part Four, control methods, click here. For Part Five, pest control action thresholds, click here.

This is Part 6: Emergency Response

When all prevention efforts have failed and your escalation procedures must be implemented, your emergency response document takes the stage.

Figure 1: We never want to see these at our door

It sounds obvious, but your emergency response document is your team’s guide to structure your response to an emergency. This begins with the simple definition of what is an emergency for your business. Emergencies can be to your personnel (personal injury) or your infrastructure (broken pipes/floods, power failure), and finally, a pest or pathogen outbreak that threatens the entire facility (insects/fungus, molds). Be sure to get the advice of your local service providers on the important things to put in to your response plan. This article is far from an exhaustive list, but it can get you started quickly with the basics for example purposes.

Personal Injury

Personal injuries are the events where you would call your local fire or police resources after stabilizing trauma events. Examples are chemical exposure, cuts, lacerations or broken bones from falls or crush events, burns, electric shock or earthquake or weather events. Injury response is to assess, call for medical assistance if appropriate, provide first aid and stabilize the injured, move to safety if possible, treat the injury and after the event is over and still fresh in everyone’s mind, consider what can be done to avoid the repeat of this or similar events in the future. Work those changes into your standard operating procedures.

Emergency Response to Facility Events

Figure 2: Cultivation IPM Prevention with Beneficial Insects

Whether the event is broken pipes or flooding, power failure or interruption, fire, HVAC failure or weather event, emergencies come in all sizes possible. It is likely that you built up a plan for emergency response as part of your city permitting process. Be sure to use those experts to refine your plan to include your operations.

Broken pipes start with the basics of turning off the source feeds and fixing the plumbing. If the water is actually rich fertilizer nutrients, cleaning and disinfectant is necessary as part of the drying and mop up process.

Environmental damage from fire, HVAC or weather event, lead to immediate treatment to try and save the current crops. This would include manual watering/misting, portable heater/cooler/CO2 burners. Verifying that backup power supplies turned on as planned. Are emergency fixes sufficient to power or run the systems necessary for plant life until power is returned?

Cultivation Events

Figure 3: Emergency Response Team Investigating Treatments

This entire paper has been about pest management, so emergency is expected to mean a pest or pathogen outbreak. We defined the escalated response actions up to the point of direct action and chemical interventions in chapters four and five. Your emergency response plan takes those actions to a site wide effort. Identify the pest and location/s that are causing the crisis, isolate the infested plants, remove the infected materials, clean, disinfect, and purify the contacted surfaces. Follow your plan and contact your emergency leaders.

Emergency Response Team

Your emergency response document identifies each of your team leaders and executives that are to be contacted in the event of an emergency. These leaders should be identified in the document with contact details and methods/on-call schedules for days and times of responsibility (after normal hours and holidays included). Someone is always on-call. The personal injury, facility and cultivation lead responsible should be identified and aware that they are the assigned resource and to treat emergencies as a priority.

Figure 4: IPM Preparation – Put It All Together for Success!

In Conclusion

We have covered an example integrated pest management philosophy from prevention through observation to limiting expansion to treatment and review. This continuous monitoring and learning process is a living document of standard operating procedures for any facility.

The attention of your team, their scouting observations, and attention to detail give you an opportunity to address and restrict any pest outbreak before it destroys your crop. Teach your operators well and reward them for their attention to your plan.

Clean and sterilize your facilities regularly. Preventing the emergence of pests will pay for the investment in a multitude of ways in both savings and profits. Plan your response thresholds and use traps to monitor your escalating protections. Target your treatments and remediations to match the threats to your harvests. As a last resort, apply approved chemical treatments judiciously to minimize the impact on non-target organisms.

Evaluate the effectiveness of your plan on an annual basis. Put your improvements to work for you to minimize your pest footprint and to increase your profits in every harvest.

For a copy of the complete Integrated Pest Management guide, download the document here.

Building An Integrated Pest Management Plan – Part 5

By Phil Gibson
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This is the fifth in a series of articles designed to introduce an integrated pest management framework for cannabis cultivation facilities. To see Part One, an overview of the plan and pest identification, click here. For Part Two, on pest monitoring and record keeping, click here. For Part Three, on preventative measures, click here. For Part Four, control methods, click here. Our final chapter, Part Six, discussing emergency response, comes out next week to wrap it all up.

This is Part 5: Pest Control – Taking Action

Previous chapters have covered the many preparations you can take to protect your facilities from pest attacks and outbreaks before they get started. This chapter will summarize the concepts of pest control thresholds and the actions you can take for the painful event when you surpass those limits (and various examples). The Integrated Pest Management (IPM) recommendations provide you with a framework for these plans.

Figure 1: Cleaning regimen, the heart of successful operations – no biofilm buildups

Preventative actions are part of your regular site operations; in other words, they are how you avoid problems before they happen. Just to hit this action one more time: cleaning must be fundamental to your facility. Water sanitation and changing filters must be done on schedule and frequently to avoid biofilm build up and nasty self-multiplying eco-systems.

For each of the rooms in your facility, identify the acceptable tolerance level for each type of pest that you may encounter. Define the intervention levels per room: preventative, direct action and escalated direct action. Follow your predefined procedures and defend your facility. Let’s cover high, medium and low tolerance example responses.

High Threshold for Tolerance

For example, the impact on your plants, your profits and your yields from the discovery of a white fly fluttering inside of one of your flower rooms may be very small. If this presence is late in your harvest cycle, your tolerance of this discovery may be very high. Your team could take preventative actions to clean the room more aggressively or to check your traps more frequently, but you are probably not going to want to invest in aggressive actions at that time in the harvest cycle.

Move from passive observation to the shake test. With sticky traps in place, shake or brush your plants. Do you see the bug counts increase on your test sheets?

Figure 2: Thrip Evidence c/o UC ANR Publication 7429

As that infestation grows, you may set a threshold for direct action (i.e. 5-10 flies per trap per week). If you reach that level, implement a treatment action with a non-chemical microbial biofungicide to stop growth in the roots or neem oil as a direct chemical action.

When you reach your escalated threshold of 10-20 flies per trap or direct plant damage is apparent, an infestation is more serious. In that event, you may choose to take steps to directly reduce the pest population with knock down sprays of approved direct chemical pesticides like citric acid or insecticidal soaps. Be sure to use your Personal Protective Equipment (PPE) for breathing and contact safety if you get into this situation.

Medium Threshold for Tolerance

Depending on the timing in your harvest cycle, the discovery of fungus gnats in your grow room may trigger a medium level alarm for you. Is the location, a small example with a minimal frequency? Is this addressable with additional attention to cleaning the area and longer dry periods in the irrigation or is this the beginnings of an infestation? Fungus gnats feed off of fungus or organic matter in soil triggered from an overly moist root environment. You may choose to react with immediate cleaning at the first existence in a room. Or you could set your “Medium” level alert status to be additional sticky trap distribution at the first visible gnat. If those counts reach 10-20 gnats per sticky trap per week, begin your foliar spray regimen with Zerotol or the equivalent.

Figure 3: Fungus Gnats

If these counts do not respond to your treatment, meaning that the next sticky trap count reaches beyond 20+ gnats per trap or visible direct plant damage, then institute your root drench protocol with a solution of BActive 1-2 times per week until the problem is under control and the counts are reduced. If the growth continues, look to approved pesticides in your area (as an example, AzaGuard Asadirectin).

Low Threshold for Tolerance

Alternatively, you may have a unified air circulation system due to facility limitations. Your air circulation may be shared across all of your mother plants, clones, veg and flowering plant areas. In that case, any presence of an airborne fungal infection like powdery mildew would have a very low tolerance of acceptance. Selective de-leafing of the infection and increased airflow are your first defense. Any visible presence beyond that would trigger a low threshold alert and immediately start a preventative action, such as carefully removing the infected plant material much wider than a few leaves and treating the area with foliar sprays like Zerotol (hydrogen peroxide plus).

If the penetration continues or expands, treatment would escalate to minimal risk pesticide follow up and observation. Chemical oils or citric acid might be in your mix in this case.

Figure 4: Powdery mildew in cannabis – Ryan Douglas Cultivation LLC

Finally, if repetitive treatments once a week are not turning the tide, increasing to once per day or even once per ON/OFF lighting cycle until the infection is controlled. At this point, you may decide to strip the room down and start over. Clearly the choice to “throw in the towel” is a total loss of the crop, but it may be the best option relative to minimal yields and failed flowers that will not sell.

Pest Control Actions

Our Integrated Pest Management recommendations paper gives you examples of what to consider for plans with white flies, fungus gnats, root aphids, powdery mildew and biofilm on plumbing or surfaces. These follow the preventative action, direct action, escalated direct action and pesticide approaches for each example. These are options to plan for water sources, root treatment, tunneling, crawling and flying phases.

In summary this week

As covered, preventative measures are your best defense. Hire expert consultants and plan these well. Escalate your response based on your scouting activity and your plan. Add your sticky traps, de-leafing, root drench, foliar sprays or knock down sprays as defined by your pest population control actions document.

For more detail on each of these treatments, you can see examples for your integrated pest management procedures in our complete white paper for Integrated Pest Management Recommendations, download the document here.

In our final chapter, Emergency Response, we will review control thresholds and example plans for a range of problems from biofilm build up to white flies and more.

Our final chapter after will describe emergency response framework and reviewing your complete plans. See you next week.

Minnesota Legalizes Adult Use Cannabis: Part 2

By Abraham Finberg, Rachel Wright, Simon Menkes
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In Part 1, we examined the current status of adult use cannabis in Minnesota, paying particular attention to the licensing framework, taxation and social equity considerations. In this article, we’ll cover some important need-to-know info if you’re considering opening an adult use business in the “Land of 10,000 Lakes.”

Starting a Cannabis Business in Minnesota: Important Considerations

As the state does not expect to begin issuing licenses before the first quarter of 2025, now is the time to plan a licensing campaign. With a population of 5,714,000, 64% of which live in the Twin Cities of Minneapolis-Saint Paul, Minnesota is close in population to Colorado, with 5,774,000 residents. Colorado currently has around $1.8 billion in yearly retail cannabis sales. This may suggest a similar possible level of sales for Minnesota once its retail cannabis market matures.

In a recent op-ed piece for Marijuana Moment, the New York cannabis consulting firm of Bridge West Consulting suggested three reasons, in addition to low cannabis excise taxes and reasonable license fees, why entrepreneurs should consider investing in a retail cannabis business in Minnesota:

  • Minnesota legislation prohibits localities from banning cannabis businesses. This avoids serious problems that have plagued cannabis businesses in other states including California and Montana in which access for cannabis companies has been denied and, in Montana’s case, even reversed. (Minnesota’s new legislation does allow local governments to limit the number of cannabis retailers to one for every 12,500 residents, however.)
  • Minnesota has allocated funds to assist social equity cannabis businesses, including $6 million to the CanStartup which will fund non-profits to make loans to budding cannabis businesses.
  • Bridge West makes the interesting observation that Minnesota is bordered by four states—Wisconsin, Iowa, South Dakota and North Dakota—none of which have legalized adult use cannabis. Moreover, an estimated 1.9 million people live outside of Minnesota within a 50-mile radius. That means that not only will Minnesotans not have to compete with out-of-state cannabis dispensaries but will benefit from the purchases of out-of-state residents that live within a comfortable distance.

How a License Application is Scored

HF100 gives some guidance as to how the Office of Cannabis Management (OCM) will score license applications, awarding points for the following 9 categories: social equity status, veteran status, security and record keeping, employee training plan, business plan and financial situation, diversity plan, labor and employment practices, knowledge and experience and environmental plan.

The OCM may award additional points if the applicant would expand service to an underrepresented market. Points may also be awarded to those applicants who can demonstrate a negative impact from cannabis prohibition such as arrest or imprisonment of the applicant or their immediate family. This is different from social equity status and the law says points may be awarded to the applicants “in the same manner as points are awarded to social equity applicants.”

Emphasis on Market Stability; Prohibition of Vertical Integration

Minnesota is taking measures to ensure “market stability,” which it doesn’t specifically define, but which it says involves:

  1. Ensuring an adequate supply of cannabis, but not a glut.
  2. Eliminating the illicit cannabis market.
  3. Promoting a craft cannabis industry.
  4. Prioritizing growth and recovery in communities that have experienced a disproportionate, negative impact from cannabis prohibition.

HF100 states, “The office shall issue the necessary number of licenses in order to ensure the sufficient supply of cannabis flower and cannabinoid products to meet demand, provide market stability, and limit the sale of unregulated cannabis flower and cannabinoid products.”

Continuing its emphasis on “smaller is better,” HF100 says, “Unless the office determines that the issuance of bulk cultivator licenses is necessary to ensure a sufficient supply of cannabis flower and cannabinoid products, the office shall not issue a bulk cultivator license before July 1, 2028.”

Vertical integration is also prohibited. “The office shall not issue licenses to a single applicant that would result in the applicant being vertically integrated.” HF100 goes on to state that microbusinesses are exempted, and that if the OCM determines that vertical integration is necessary to ensure a sufficient supply of cannabis and cannabis products during the first year of such products being sold to customers, it may authorize one or more applicants to be vertically integrated. However, such a group of licenses are very temporary and will expire at the end of that first year period.

An entity holding a cannabis retailer license may also hold a delivery license, a medical retailer license and an event organizer license. But no retailer may hold any other license. Also, no entity may own or operate more than one retail business in one city or county.

Interestingly, Minnesota is also allowing cities or counties to own and operate a municipal cannabis store, possibly similar to the way Utah has government liquor stores which compete with private bars, breweries, wineries and distilleries.

In Summary

Minnesota is just beginning to define and establish its adult use cannabis market. Like other states before it, it is attempting to promote social equity aims at the same time as it’s working to avoid the serious problems of a competitive illegal market and an over-or-under supply of cannabis to its citizens.

With low license fees and excise taxes and a good-sized population, 420CPA believes cannabis entrepreneurs should seriously consider Minnesota for possible investment. The first cannabis retail businesses are not expected to open for another 18 months, so now is the time for businesspeople to lay the groundwork for their applications and future locations.

Building An Integrated Pest Management Plan – Part 3

By Phil Gibson
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This is the third in a series of articles designed to introduce an integrated pest management framework for cannabis cultivation facilities. To see Part One, click here. For Part Two, click here. Part Four comes out next week and covers direct control options for pest reduction. More to come!

This is Part 3: Preventive Measures

Preventive measures are a great investment in the profitability of your operations. Our objective is to ensure successful repeat harvests forever. Build your procedures with this in mind. This means maintenance and regular review. We all realize that this work can be monotonous drudgery (we know!), but these procedures will ensure your success.

Figure 1: New Air Shower Access Installation

As a summary to begin, pest access must be limited wherever possible. Employees are the first place to start, but we must also return to our site map and review our facility design and workflows. Every operation has to move plants from nursery through harvest and post-harvest. Where should cleaning happen? Of course, you have to clean up post-harvest but when should this occur during the grow cycle? What is the best way to monitor and clean environmental management systems (i.e. air, water) and what are the weaknesses in the physical barriers between operations? Let’s walk through these issues one-by-one.

Employee Access and Sterile Equipment

Follow procedures to screen and protect your employees both to eliminate pests and to avoid exposing your employees to harmful chemicals or storage areas. Look for ways to isolate your workflow from pest access. Be certain that your facility is airtight and sealed with filtration of molds, spores and live organisms in your air intake areas. Air showers at your access points are important to screen your employees on their way into your gowning areas and grow facility. Clothing should be standardized and shoe coverings or crocs should be provided for all employees that access your interior. Look for ways to stop all pests (embedded, crawling, hopping or flying) in all of your room assignments (mothers, clone, veg, flower, trim and drying). This can be improved with shoe baths, sticky mats, frequent hygiene (hand washing and cleaning stations) and procedures for entry.

Always consider requiring hair & beard nets, shoe covers and disposable gloves in plant sensitive areas.

Chemical Access & Protective Equipment

Figure 2: Example Facility Map – Understand Workflow & Barriers to Pest Access

Personal protection equipment (PPE) is very important to protect any employee that will come in contact with materials, liquids or vapors for chemical resources. Establish procedures for chemical use and train employees in the safe handling of these materials. Typical equipment includes high density chemical protective gloves, boots, respirators, Tyvek (or equivalent protective wear) suits and eye protection or goggles.

Chemical access areas and their use should be restricted to employees familiar with their authorized application. Always remember that cannabis is an accumulator plant, and it will absorb and hold onto chemical treatments. Appropriate isolation and safety procedures must be followed for chemical use. Not following these restrictions can expose your employees to dangerous chemicals or get your entire harvests rejected at testing.

Facility Map & Workflow

Because insects would like to be everywhere and they come in many types (root zone, crawling, flying, microscopic, bacterial or biofilm), the facility workflow must understand where they are and how they might migrate if they penetrate your defenses. Note airflows in your rooms and fan locations so migrations can be predicted once an infestation is located. Where are your opportunities for full clean-up and disaster recovery in your building? Where should you stage maintenance filters, test kits, water and cleaning materials. How best to clean up and dispose of sealed garbage containers or cleaning materials?

Operational Cleaning & Post-Harvest Reset

When compiling your preventative measure documents, it is critical to create a repeatable operating procedure for cleaning and sanitizing your rooms, systems, and growing spaces after each harvest. Plant material handling, cleaning surfaces and wipe methods should all be documented in your Standard Operating Procedures (SOPs). Define what “clean” is. Removing plants and plant debris is pretty clear but define how to drain reservoirs, clean pipes, change filters and clean and sterilize your rooms. Operators must be trained in these SOPs and reminded of their content on a regular schedule. This is how you avoid outbreaks that can crush your profits.

Physical Barriers & Maintenance

Figure 3: HVAC Air Filtration, Dehumidification, & Air Movement, Onyx Agronomics

Document your sealed spaces and define your normal room and access door barrier interfaces. Review the status of any known cracks or gaps in your perimeter. Are there any known leaks or piping that has been seen as a risk or a problem in the past? Are there any discoloring or resident mold locations (Never happens, right?). Baseline how much time and people resource a harvest operation and cleaning effort should take. Will you do this after every harvest or compromise your risk by delaying to every third or fourth harvest? Create your barrier SOP.

Environmental Control & HVAC

Managing the air quality provided to your plants is critical to your yields. Controlling CO2, air movement rates (the leaf happy dance), humidity, air filtration and sterilization methods must be maintained and cleaned on a regular basis. Do you need to change the HEPA or other particulate filters? Is there any UV light sterilization maintenance? We have all seen the home HVAC air conduit cleaning commercials. Your commercial facility is no different. How will you clean your air and water plumbing systems? How often will you perform this full reset? When will you calibrate and data log your sensors for temperature, humidity, CO2 and water resources? Put everything about your environmental set points into your maintenance document and decide when to validate these. Molds, mildews and biofilm hazards are all waiting for unmonitored systems to open the door for access.

In Conclusion, This Week

If you’re an IPM nerd and this dynamic topic did not put you to sleep, you can read more detail and examples for your integrated pest management procedures in ourcomplete white paper for Integrated Pest Management Recommendations, download the document here.

In our next chapter, Direct Control Options, we will review what you can use to protect or recover control of your facility including both chemical and non-chemical tools and methods. In our final two chapters, we will discuss extermination of the determined pests that breach your defenses. And with great expectations, our final chapter will discuss emergency response and time to go to war!

Part Four comes out next week. See you again soon!

Building An Integrated Pest Management Plan – Part 2

By Phil Gibson
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This is the second part of a series of articles designed to introduce an integrated pest management framework for cannabis cultivation facilities. To see Part One, click here. Part Three comes out next week and covers prioritization and preventative measures. Stay tuned for more!

This is Part 2: Pest Monitoring, Record Keeping, & Communications

Begin your pest identification process with a pest scouting document. You have already mapped out your facility with locations and potential access locations. For each of these pest types and room type assignments (mothers, clone, veg, flower), identify your employee scouts, their scouting methods, scouting frequency and the type of likely pest they are to search for and count.

Insect Types and Tracking Methods

Figure 1: Example Sticky Trap Scouting Map

Insect pest types include, but are not limited to, airborne flying or crawling insects, their various egg, lymph, larvae, pupal shells or immature forms. Look for trace remnants, plant damage or feces that let you know they are present in some form. If they are at the mature jumping or flying stage, this can be harder to count, but sticky traps distributed on an even basis around your rooms can make the counting process more consistent from survey to survey.

Note airflows in your rooms and fan locations so migrations can be predicted once an infestation is located.

Insects Can Be Everywhere – Crawlers & Fliers

Insects would like to be everywhere so they come in many types from the obvious flying and crawling types to root-zone microscopic, aquatic, fungal, bacterial or biofilm based. For those of you using soil or media, root-zone insects can be beneficial by digesting and breaking down organic matter into something useful for your plant’s roots (earthworms) or harmful by feeding directly on your plant roots and sucking the life out of your plants from out-of-sight below (nematodes, maggots).

Common pests in a cannabis environment include:

  • White flies – Oval shaped eggs on the underside of leaves, nymphs- oval crawlers that suck on the undersides of leaves, larger stage nymphs with pupae shells as they form wings and mature white flies.
  • Fungus gnats – Clear eggs deposited in overly wet soil or dead plant matter. Clear or white colored larvae in the soil or media, these worm-like critters go through multiple stages of molting as they grow, eventually pupating into brown cocoons and finally small black or dark flies with clear wings that flutter around your plants and suck on your leaves.
  • The dreaded spider mite – Clear, hard to see eggs on the underside of your leaves. These six-legged tiny moving bubbles begin the feeding as larva, add 2 legs in the intermediate and mature nymph stages and finally the oval shaped spider mites that every grower despises, adding their webs around the tops of your plants as their nurseries suck the life out of your flowers.

Insect Transfers of Bacterial Infections

Figure 2: The Dreaded Spider Mite

Many crawlers or fliers you may discover in your grow operation do not generate fungus or bacteria on their own. However, they do routinely pick these up along the feeding way and bring them into your shop. Sap-feeding insects like leafhoppers and aphids use their needle mouths to pierce your leaves to suck on the sap that is nourishing your greenery. These insects consume the fluids and transfer bacteria as they feed. Whiteflies fit into this category of leaf sucking bacteria carrying pests. These pests can make your healthy grow rooms look blotchy with color drained out of your canopy.

Obvious symptoms of these flying/hopping pests are sticky leaves, black fungus mold, or yellowing leaves that show up at the bottom of your plants and work their way upward as the infestation progresses. Leaf curling or plant wilting will be visible in the more advanced stages of these pests.

As if crawlers were not bad enough, invisible fungus and bacteria that get into your water supplies can be the worst challenges of any grow.

Water Sourced Bacteria

Baseline testing of your feed water is critical for any facility. This is true whether you are using surface water, well water or municipal water. Please see the water tutorials on the AEssenseGrows website for details on how to test your water sources and what to look for in the mineral content.

Regardless of your water source, bacteria can be present directly in your water supply, or it can be introduced from infected plant materials from one of your suppliers. Pythium, fusarium and the latest plague, hop latent viroid, are some of the most common threats that attack your plants from your water or soil sources. These can come from your wells, feed lines or plant materials.

Reverse osmosis (RO) is a typical method to clear water of most pathogens and bacteria using water that is pressed through filters with very small membrane apertures. These small openings usually stop impurities, salts and microorganisms. Of course, these systems come in many different types and they have to be maintained to keep their performance quality. Don’t take shortcuts on your RO system.

Once your water source is clean, strict hygiene procedures for tools, equipment and plumbing are the best way to minimize these threats to your plants downstream from your water source. These cleaning efforts are not a guarantee. Pests can still get into even the best facilities. Symptoms of these maladies vary, but root rot, stunted growth, wilting, discolored roots or leaves, and in some cases, the quick death of your plants is possible depending on the critter.

Use your scouting regimen and your data mapping to locate infestations before they expand and damage your facility. Isolate outbreaks and take appropriate measures to address the pests. We will give you suggestions on prioritization and preventative measures to take in the next chapter.

Figure 3: Example Pythium Brown Roots

Pythium is one of the most commonly harbored soil or water carried pests. When it is present and gets into your plants through cuts, natural openings, root surfaces or leaves on weakened plants, it can be devastating. In hydroponic systems, dirty looking brown roots evolve into full root rot if not addressed. Pythium is often the cause. In soil operations, pythium often shows up as wilting or yellowing patches on leaves.

Your lab testing partners are your friends when it comes to bacterial or fungal infections. Many diseases can resemble one another. It is not hard to misdiagnose environmental stress such as overheating or overwatering for a bacterial problem. Test results are necessary to accurately diagnose a problem.

Truly Airborne Molds & Mildews

Pythium and fusarium are not just present in water. They can also be airborne. Grey mold (botrytis) and powdery mildew are also common airborne pests. Proper humidity, air movement, air filtration and sterilization using HEPA (High-Efficiency Particulate Air) filters, activated carbon filters (also filter smells) and UV light sterilization can minimize these problems in your grow. Powdery mildew is the primary evil spore in this category. Airflow and regular cleaning to discourage fungal growth is the best way to limit these pests.

In conclusion, this week

Now that we have talked about identification (and clearly, this is not an exhaustive list), we will move into how to build in the cultural methods to prevent these problems from taking hold and ruining your business. In later chapters, we will dive into prioritization, treatment and control options for infestations, finally moving into control actions and emergency response.

Your integrated management response is how you pull all of this together and use your IPM procedures to increase your profitability. For the complete white paper on Integrated Pest Management Recommendations, download the document here.

Part three comes out next week and will delve into the world of Preventative Measures. Stay tuned for more!

Building An Integrated Pest Management Plan – Part 1

By Phil Gibson
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This is the first part of a series of articles designed to introduce an integrated pest management framework for cannabis cultivation facilities. Part one details an overview of the plan as well as pest identification. Part two comes out next week and will delve into the world of pest monitoring and record keeping. Stay tuned for more!

Figure 1: Integrated Pest Management Cycle

Background

Integrated Pest Management (IPM) is a philosophy of pest prevention and control that integrates cultural, mechanical, physical and chemical practices to control pest populations within an acceptable degree of economic tolerance.

IPM encourages growers to take a step-wise approach to determine the most appropriate means necessary for avoiding pest-related economic injury through careful consideration of all available pest control practices.

When practicing IPM, less invasive non-chemical practices are given priority, until escalation necessitates otherwise.

This is Part 1: Pest Identification & Monitoring/Communications

Personal experience in a facility is a great place to start. Review your history and identify a list of pests that you have experienced in this or previous grows. Point out which pests currently exist where they were or are currently and possible sources of the contamination/infestation.

Figure 2: Healthy Aeroponic Mother Stock

Map out your facility with clear entry/exits, plumbing & drainage and air flow access to visually see and understand potential access points for crawling, flying or airborne pests.

From your nursery mother room to cloning and vegetation areas, what are the transfer methods as you move from one area to another. Are pests present in these areas? Where could they have come from? Oftentimes, a cultivator may not have the space for their own mother and cuttings/cloning space. In these cases, where did the outsourced clones come from? What are the IPM controls in place for these genetic sources? Are they carriers of the challenges transferred to your own facility? It is important to identify the possible source of pest potentials

Does your flower room have white flies or fungus gnats? Locating these and identifying the likely source is a good place to start if you have an ongoing infestation.

Figure 3: Example Aeroponic Facility Layout For IPM Planning

Powdery mildew is a routine challenge if air into your facility is not filtered and sterilized to eliminate these spores.

What is the Source of Your Irrigation/Fertigation Water?

Water is a crucial element for high-value indoor farms such as those that grow cannabis. However, water can also be a source of disease-causing microorganisms that can negatively impact the growth and yield of crops. Monitoring, filtering and sterilizing the biological contents of water is therefore crucial in ensuring the health and quality of high-value crops.

Unfiltered water can contain a range of pathogens such as bacteria, viruses, fungi and parasites that can cause root, stem and bud rot. These diseases can cause significant losses in crop yield and quality, which can be devastating for indoor farmers growing high-value crops.

Figure 4: Precision Aeroponics at FarmaGrowers GMP Facility, South Africa

Monitoring the quality of water that is brought into the indoor farm is the first step in ensuring that the water is free from harmful pathogens. This involves regular testing of the incoming water for parameters such as pH, dissolved oxygen, TDS, nutrient content and microbial load. This allows cultivators to identify aspects of the incoming water they need to address before the water is provided to their crops to prevent potential problems.

Is your plumbing building biofilm that is feeding into your irrigation lines? Obviously, there are many potential sources when you go through an inventory of the risks for your facility. From that initial step, you will build your management team and label who should be contacted when a pest is found. Do you have an IPM specialist or is this a resource that needs to be contracted to address an infection?

Building this communications tree is your first step to fewer pest issues and higher yields and potency.

For the complete white paper on Integrated Pest Management Recommendations, download the document here. Part two comes out next week and will delve into the world of pest monitoring and record keeping. Stay tuned for more!

A Guide to Dispensary Insurance

By Itali Heide
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As a business owner, insurance is always a must. If you are interested in entering into the cannabis industry or you already have, it’s important to know what to expect when it comes to insuring your cannabis-related business.

That’s why we’ll be exploring what dispensary insurance is, different options for business owners and general advice regarding dispensary and other CRB insurance.

What is Dispensary Insurance?

Insurance for cannabis-related businesses refers to policies that protect the business against risk. This can include dispensaries, cultivation centers and testing labs – all of which require different levels of coverage and liability.

We spoke to Alexander Marenco, an insurance broker from Marenco Insurance, who explained what dispensary owners should know before seeking out insurance. Marenco says it’s similar to shopping for insurance for other businesess. “You need to have full details of the business and location to receive a quote.” He adds. “The applications will ask questions such as location, renovations, or improvements to the location, ownership information, payroll details, and sales or projected annual sales.”

How is Dispensary Insurance Different From Other Forms of Business Insurance?

Because non-hemp-derived cannabis is still considered a schedule one controlled substance under the Controlled Substance Act, cannabis insurance can be more expensive than regular insurance for non-cannabis businesses. Because of the risks associated with being considered a potential retailer of a controlled substance, liability policies and other options can cost a pretty penny.

budtenderpic
The cash-only nature of the business makes insuring dispensaries more costly

Additionally, when asking Marenco about how dispensary insurance differs from other brick-and-mortar retail insurance, he says: “With more states increasingly legalizing medicinal and recreational marijuana, insurance carriers have started to open risk acceptability. However, since marijuana is still federally illegal, businesses will find it difficult to find multiple quotes from different carriers.”

Types of Insurance Available for Cannabis-Related Businesses

What kind of insurance is available for cannabis-related businesses? Let’s find out.

First off, it’s important to keep in mind that CRBs are at risk for a lot of things: workplace accidents, damage to property, theft, general liability and product liability. Plus, the fact that most dispensaries work on a cash-only business model until the Secure and Fair Enforcement (SAFE) Banking Act is approved by Congress, CRBs tend to handle big amounts of cash, further putting them at risk of theft and liability. CRB insurance can be as low as $350 and as high as $7,500 depending on the type of business and policy.

Here are some of the most common types of insurance for CRBs and what they cover:

  • General liability: third-party claims for bodily injury, property damage and reputational harm.
  • Commercial property: damage to a business-owned property.
  • Professional liability: third-party accusations of negligence and mistakes.
  • Workers’ compensation: employees’ medical bills and lost wages due to injury or illness.
  • Inland marine: damage or theft of business-owned property in transit.
  • Crop: costs from damage to seeds and plants.

With so many things to watch out for, insurance for cannabis businesses and dispensaries isn’t cheap. Here, Marenco says what CRB owners can do to keep their premiums as low as possible:

A smart safe like this one can help secure cash handling

“Premiums are primarily based on sales (actual or projected). After the term expires, the insurance carrier will conduct an audit for the prior term to confirm the information from the application. The audited discrepancy will adjust the next term’s sales figures. Dispensary insurance will typically be placed through an excess & surplus market which do not provide traditional discounts.”

So, in essence, the best thing a dispensary owner can do is be honest about their projections.

Navigating premiums can be a detailed process, as we learned when speaking to Jesse Giffith, an owner of Smokeless CBD and Vape: a chain of retail shops across the twin cities Minneapolis–Saint Paul, Minnesota:

“Our shops carry insurance that has been offered with a modified rate for vape retailers. This route was not as straightforward as some traditional retail insurance options, but may offer benefits, and a better fit for coverage than other dispensary insurance options.”

A Growing Number of Dispensaries Across America

With the growing legalization and normalization of adult use, medical and hemp-derived cannabis across the nation, it should come as no surprise that the number of dispensaries across the country grows exponentially.

In 2021, the cannabis market in the U.S. was valued at 10.8 billion dollars, with an expected annual growth of 14.9% annually. This is a sign of what’s to come. Cannabis may be an industry that’s been considered taboo for decades, but the growth shows the growing acceptance of the plant for medical and adult use reasons.

Insurance providers remain cautious as cannabis laws are still in flux.

With that growth comes a greater need for insurance providers, opening the door to the possibility that these two industries will grow in tandem. The future may bring a greater variety of options for coverage at cheaper prices. But for the time being, insurance providers remain cautious as the fate of federal and local cannabis laws are still in flux.

Are There Limited Carriers that Issue Dispensary Insurance?

Every CRB needs insurance, just like any other type of establishment, business or company. The issue within the cannabis industry is that there is still a limited insurance market, with insurers willing to provide insurance constantly exiting and entering the market. Plus, the overall capacity and variety of policies that cover different types of risks are limited. Lastly, it can be difficult to use CRB insurance when you read between the lines of the policy. Because cannabis with THC is still federally illegal (excluding hemp-derived cannabis products containing less than 0.3% THC), insurers can negate coverage when a loss or claim occurs.

Because of the complications that may arise even if you do have insurance, Marenco offers some advice for dispensary owners that are searching for the right insurance option for them: “Before shopping for insurance make sure you have all your licenses and are in full compliance with all regulations. Insurance carrier’s requirements from the state. Additionally, consider different coverage options.” He continues. “At a minimum, a business needs general liability insurance. Insurance companies can also consider covering business property including inventory, betterments, and improvements to a rented space, among others. When shopping for insurance make sure your agent reviews different coverage options.”

The 3-Legged Stool of Successful Grow Operations: Climate, Cultivation & Genetics – Part 4

By Phil Gibson
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This is Part 4 in The 3-Legged Stool of Successful Grow Operations series. Click here to see Part 1, here to see Part 2, and here to see Part 3. Stay tuned for Part 5, coming next week.

Integrated Pest Management (IPM)

Aeroponic & hydroponic systems can operate with little to no soil or media. This eliminates the pest vectors that coco-coir, peat moss/perlite and organic media can harbor as part of their healthy biome approach. Liquid nutrient systems come at the nutrient approach from a different direction. Pure nutrient salts (nitrogen, potassium, magnesium and trace metals) are provided to the plant roots in a liquid carrier form. This sounds ideal for integrated pest management programs, but cultivators have to be aware of water and airborne pathogens that can disrupt operations. I will summarize some aspects to consider in today’s summary.

The elimination of soil media intrinsically helps a pest management program as it reduces the labor required to maintain a grow and the number of times the grow room doors are opened. Join that with effective automation with sensors and software, and you have immediate improvements in pest access. Sounds perfect, but we still have staff to maintain a facility and people become the number one source of contamination in a grow operation.

Figure 1: Example of Pythium Infected & Healthy Roots

Insects do damage directly to plants as they grow and procreate in a grow room. They also carry other pathogens that infect your plants. For example, root aphids, a very common problem, are a known carrier of the root pathogen, Pythium.

Procedures

One of the most common ways for pests to access your sealed, sterile, perfectly managed facilities are in the root stock of outsourced clones. If you must start your grow cycles with externally sourced clones, it is strongly recommended that you quarantine those clones to make sure that they do not import pest production facilities into your operation. Your operation management procedures must be complete. If you take cuttings from an internal nursery of mother plants, any pathogens present in your mother room will migrate through cuttings into your clones, supply lines, and subsequently, flower rooms.

Figure 2: Healthy Mothers & Clones, Onyx Agronomics

Start your gating process with questioning your employees and visitors. Do they grow at home or have they been to another grow operation in the last week? In the last day? You may be surprised by how many people that gain access to your grow will answer these questions in the affirmative.

Developing standard operating procedures (SOPs) that are followed by every employee and every visitor will significantly reduce your pest access and infection rates, and hence, increase your healthy harvests and increase your profitability. Procedures should include clothing, quarantining new genetics and cleaning procedures, such as baking or irradiating rooms to guarantee you begin with a sterile facility. This is covered more in the complete white paper.

Engineering Controls

Figure 3: Access Control: Air Shower, FarmaGrowers

Technology is a wonderful thing but no replacement for regimented procedures. Considered a best practice, professional air showers, that bar access to internal facilities, provide an aggressive barrier for physical pests. These high velocity fan systems and exhaust methods blow off insects, pollen and debris before they proceed into your facility. From that access port into your grow space, positive air flow pressure should increase from the grow rooms, to the hallways, to the outside of your grow spaces. This positive airflow will always be pushing insects and airborne material out of your grow space and away from your plants.

Maintaining Oxidation Reduction Potential (ORP)

ORP is a relative measurement of water health. Perfect water is clear of all material, both inert and with life. Reverse osmosis (RO) is a standard way to clear water but it is not sufficient in removing microscopic biological organisms. UV and chemical methods are needed in addition to RO to clear water completely.

ORP is an electronic measurement in millivolts (mV) that represents the ability of a chemical substance to oxidize another substance. ORP meters are a developing area and when using a meter, it is important to track the change in ORP values rather than the absolute number. This is due to various methods that the different meters use to calculate the ORP values. More on this in the white paper.

Oxidizers

Figure 4: AEssenseGrows Aeroponic Nozzles

There are two significant ways to adjust the ORP of a fertilizer/irrigation (fertigation) solution. The first is by adding oxidizers. Examples are chemical oxidizers like hydrogen peroxide (H2O2), hypochlorous acid (HOCl), ozone (O3) and chlorine dioxide (ClO2). Adding these to a fertigation solution increases the ORP of the fertigation solution by oxidizing materials and organic matter. The key is to kill off the bad things and not affect the growth of plants. Again here, the absolute ORP metric is not the deciding factor in the health of a solution and the methods by which each chemical reaction occurs for each of these chemicals are different. This is compounded by the fact that different ORP meters will show different readings for the same solution.

Another wonderful thing about automation and aeroponic and hydroponic dosing systems is that they can automatically maintain oxidizing rates and our white papers explain the methods executed by today’s automation systems.

Water Chilling

Another way to adjust ORP is to reduce the water temperature of the reservoirs. Maintaining water temperature below the overall temperature of your grow rooms is imperative for minimal biological deposition and nutrient system health. Water chillers use a heat exchanger process to export heat from liquid nutrient dosing reservoirs and maintain desired temperatures.

The benefit of managing ORP in aeroponic and hydroponic grow systems is highly accelerated growth. This is enhanced in aeroponics due to the effectively infinite oxygen exchanging gases at the surface of the plant roots. Nutrient droplets are sprayed or vaporized in parallel and provided to these root surfaces. Maximizing the timing and the best mineral nutrients to the root combustion is the art of grow recipe development. Great recipes drive superior yields and when combined with superior genetics and solid environmental controls, these plants will deliver spectacular profits to a grow operation.

Another Hero Award

Before closing this chapter, we have many cultivators that are producing stellar results with their operational and IPM procedures, so it is hard to choose just one leader. That said, our hats are off to RAIR Systems again and their director of cultivation, Ashley Hubbard. She and her team are determined to be successful and drive pests out of their operations with positive “little critters” and the best water treatment and management that we have seen. You are welcome to view the 7-episode walkthrough of the RAIR facility and their procedures here.

To download the complete guide and get to the beef quickly, please request the complete white paper Top Quality Cultivation Facilities here.

Stay tuned for Part 5 coming next week where we’ll discuss Genetics.

A greenhouse grow facility

Challenges Abound for Cannabis Industry Growth in 2023

By Jay Virdi
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A greenhouse grow facility

With an adverse regulatory environment, labor shortages, supply chain disruptions and the always-present threat of property damage and product recalls, cannabis operators are fighting an uphill battle to stay viable in today’s environment.

According to Politico, more than 20 of the largest publicly-traded cannabis companies lost about $550 million on revenues of nearly $4.5 billion in the first half of 2022. High taxes and barriers to interstate commerce continue to challenge the industry as well, while lenders and investors are demanding more detailed proof of future profitability. Those pursuing new capital must show how they will grow financially and present their risk management strategy for insuring themselves against losses.

Higher costs for fertilizer, building materials, packaging and more, along with rising inflation are hurting the industry’s bottom line as well, but the industry is hesitant to raise prices.

These challenges are expected to continue in 2023. However, the industry’s fast pace of growth, myriad opportunities for product development and increased access to insurance capacity offers the cannabis industry every reason for optimism.

Prioritize risk strategies

Cannabis facilities face hazards from the very components and systems required to cultivate plants, including high intensity discharge lighting, chemical exposures and butane in oil extractions. As a condition of insuring a property, underwriters are inspecting the equipment used in production and fire suppression systems.

Property policies typically don’t cover out-buildings for cannabis growers located near a hurricane or wildfire zone, and more carriers are limiting or excluding coverage for losses from large-scale natural disasters. Even coverage for crop losses from catastrophic events is limited and often prohibitively expensive.

Cannabis companies are shoring up their risk strategies and analyzing policies to ensure they’re aware of any gaps in coverage and planning how to address them. This includes adding cyber insurance, as cyber also remains a significant loss-driver in the industry.

Beware of new risks

The cannabis industry is introducing products to the market at a breakneck pace, causing new challenges to emerge. New products — such as THC-infused beverages, sugar-free cannabis tarts and cannabinoid-containing baking staples— require additional research and development for extraction, packaging, storage and distribution. And many products require refrigeration and bottling, adding complexity to distribution.

The continued growth of the cannabis edibles and beverages market is also driving companies to create new formulas, products, and strengths. But this innovation does add risk. States issued dozens of recalls in 2022 for marijuana edibles, including mislabeling and mold and salmonella contamination. These incidents have attracted the attention of plaintiffs’ attorneys, who have filed suits on behalf of consumers claiming injury from these mislabeled or contaminated products.

Invest in your staff

Although the number of jobs in the cannabis industry grew 33% between 2021 and 2022, and the need for new workers shows no signs of slowing, cannabis companies are experiencing high turnover rates and a skilled labor shortage. This is forcing operators to spend additional time and money to attract and retain employees.

Personalized benefits programs offer a partial answer. Personalizing benefits to meet individual employee needs results in positive employee experiences, helping build a workplace that attracts and retains workers. Many companies are adding health insurance and offering 401(k) plans, raising wages and adopting other worker-friendly practices to attract and retain workers.

control the room environment

Cannabis companies with solid risk management plans and advisors to help ensure their insurance policies cover exposures, will be well-positioned to overcome industry challenges, grow, and succeed in 2023. Here are four considerations to help develop a tailored strategy that will protect your bottom line, support your workforce, and build resiliency next year.

  1. Be transparent with your broker. Let your broker know what changes you’ve made to the business, so there are no surprises during renewal. Review exposures and insurance needs at least 90 days prior to policy renewal, so your broker can identify the best options.
  2. Prepare for a product recall. The odds of experiencing a product recall are high. Your first line of defense is your internal policies and procedures, and that includes thoroughly vetting your vendors and partners. Be thoughtful about the general liability and product liability coverage you purchase and ask your broker to clearly explain the differences in coverage.  
  3. Build resiliency within your company. With more carriers offering specialty coverages for the cannabis industry, now is the time to look at how best to protect your executives and build resiliency by insuring against director and officer liability claims, business interruptions and cyberattacks. Your broker can help identify the best policies for your company.
  4. Establish solid employee benefits. The cannabis industry can have access to the same benefits as other industries, including 401(k) plans. Talk to your broker about taking your benefits program to the next level with highly personalized options that won’t break your budget.

Even amidst the challenges, there is every reason for optimism in the new year because of the industry’s fast pace of growth, myriad opportunities for product development and increased access to insurance capacity.