Colorado Adds 8 Products to List of Pesticides that Can Be Used on Cannabis

The products can now be used without violating the Pesticide Applicators' Act.


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:

  • Actinovate LG
  • Actinovate SP
  • Actinovate STP
  • Carb-O-Nator
  • Gemstar LC
  • General Hydroponics DEFGUARD Biofungicide / Bactericide1
  • Obtego Fungicide and Plant Symbiont
  • TKO Maxx Systemic Fungicide

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

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 it believes could be used on marijuana without violating 35-10-117(1)(i), as long as the applicator follows the label directions.

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.

Stay Informed

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