Colorado Issues Safety Advisory; More Pesticides Found In Cannabis

By Aaron G. Biros

The advisory was issued after authorities detected the presence of Avermectin, an insecticide not approved for use on cannabis.

According to a press release issued on Friday, September 22nd, the Colorado Department of Public Health and Environment (CDPHE), along with the Colorado Department of Revenue (DOR) and the Colorado Department of Agriculture (CDA), issued a public health and safety advisory for cannabis products tainted with pesticide residue.

The advisory was issued after the detection of pesticide residues on retail cannabis plant material and products with cannabis grown by RK Enterprises LTD, doing business as Rocky Mountain Remedies. The CDA confirmed that they detected the pesticide, Avermectin, an insecticide with a relatively high acute toxicity.

When pesticides like this are not on the list approved for use in cannabis cultivation, it is considered an off-label use. According to the press release, some of the products affected include flower, trim, concentrates and infused-products.

Consumers are advised to look at the label of their products and check to see if it matches the license number 403R-00180 and harvest batch numbers r206goldenkush9.11.17 and m206larryog9.11.17. Consumers are told to either dispose of the product properly or bring it back to the retail store where they purchased it.


  1. Erica

    Hi Aaron,
    I was curious about this story but couldn’t find the CDPHE press release you mentioned in your article. Could you kindly send me a link to it. I checked the CDPHE and CDA websites and couldn’t find it.


  2. Aaron Biros Post author

    Sure thing, Erica. The Colorado MED sent an email notification for the public health and safety advisory with the press release attached, but I am not sure if they published it online. I sent it via email to you.

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