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Colorado Department of Agriculture Adds Product to List of Pesticides that Can Be Used On Cannabis

AgriDiatomSil can now be used without being a violation of the Pesticide Applicators' Act.

Press Release
June 21, 2018

PRESS RELEASE - The list for pesticides that can be used on cannabis without being a violation of the Pesticide Applicators' Act has been updated. Please note the following products have been added:

  • AgriDiatomSil

To view the updated list, click here for a pdf or click here for an Excel form. For questions regarding this change, contact Laura Quakenbush at 303-869-9060 or email [email protected].

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The Colorado Department of Agriculture (CDA) is currently reviewing pesticide labels upon request and maintaining a list of products whose label it has reviewed that is believes could be used on marijuana without violating 35-10-117(1)(i), as long as the applicator follows the label directions.

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Please be sure to review the list; pesticide products may be removed from the allowed products list if the registrant has not renewed their pesticide product with the Department. Use of unregistered pesticides on cannabis would be a violation of the Pesticide Applicators' Act.

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Stay Informed

For the latest information on CDA's Pesticides Program, visit: these important webpages:



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