The Washington State Department of Agriculture (WSDA) has recently updated the list of pesticides that are allowed for use on cannabis in the production of high-THC cannabis in Washington State, based on criteria previously established by WSDA.
- WSDA has added 4 new Section 3 pesticides and 4 new Section 25(b) pesticides to the list of allowable products for a total of 8 new products.
- WSDA removed 25 Section 3 pesticides and 11 Section 25(b) pesticides from the list for a total of 36 products removed.
- The updated list contains 215 Section 3 pesticides and 76 Section 25(b) pesticides, for a total of 291 products allowed for use on cannabis in the production of high-THC cannabis in Washington State.
“WPS” and “HG Only” Columns
WSDA has two columns on the list: (1) Section 3 pesticides that are subject to Worker Protection Standard (WPS) requirements, and (2) Section 3 pesticides that are limited to use by non-commercial “HG Only” cannabis growers. The products designated as “HG Only = Yes” may only be used by those individuals authorized to home-grow medical-use cannabis.
Products marked as “HG Only = Yes” may not be used in the commercial production of cannabis.
Please note that the “HG Only” designation has changed for the following products:
- Spectracide Triazide Insect Killer, Reg. No. 9688-319-8845
- Whitney Farms Slug & Snail Killer1, Reg. No. 67702-3-91161
Spray Adjuvants
Spray adjuvants are not included on the list; however, any spray adjuvant that is labeled for use on food crops can be used with an allowed pesticide that is applied to cannabis if the intended use is authorized by the spray adjuvant label. For example, a spray adjuvant labeled only for use with an herbicide cannot be used with an insecticide or fungicide. Information on spray adjuvants registered for distribution in Washington is available from the WSU PICOL database.
Please check your stock of pesticides against the list to ensure you are using an allowed product. Cannabis growers can continue using any existing stocks of pesticides that were removed from the list, but no new product can be purchased.
Pesticides containing 1 new active ingredient (Bacillus subtilis strain IAB/BS03) were added to the list. Most of the pesticides added to the list contain active ingredients that were already allowed for use on cannabis.
Some pesticides are labeled for application to soil or crop plants, while others are labeled for application to both soil and crop plants (e.g., insecticides, fungicides). Other pesticides include herbicides labeled for direct application to, and control of, unwanted plants (i.e., weeds). Remember to read, understand, and comply with all applicable label directions and precautions when using any pesticide.
Products Added to the List:
|
Type
|
Name
|
EPA or WA Registration Number
|
|
Section 3
|
Aviv
|
91473-1-88783
|
|
Section 3
|
Brandt GoldStar
|
57538-63-48813
|
|
Section 3
|
Brandt GroFusion
|
57538-74-48813
|
|
Section 3
|
Cintro Insecticidal Soap
|
67702-11-68539
|
|
Section 25b
|
Canna Control
|
994870-25001
|
|
Section 25b
|
Cinnerate
|
994340-24001
|
|
Section 25b
|
Cinnerate
|
994340-24004
|
|
Section 25b
|
YetiControl
|
994850-25001
|
Products Removed from the List: A review found that the active ingredients and labeled uses did not meet WSDA criteria:
|
Type
|
Name
|
EPA or WA Registration Number
|
|
Section 25b
|
*Athena IPM
|
93752-21001
|
* This product was originally registered with a different formulation and label that met WSDA criteria. The product has since undergone a formulation and label change and no longer qualifies for cannabis use.
Products Removed from the List: Product registration was cancelled or non-renewed by the registrant:
|
Type
|
Name
|
EPA or WA Registration Number
|
|
Section 3
|
Biocover LS
|
34704-808
|
|
Section 3
|
Biocover UL
|
34704-806
|
|
Section 3
|
Biomite
|
70057-1
|
|
Section 3
|
Bio-Tam 2.0
|
80289-9
|
|
Section 3
|
Foliar Triggrr
|
51517-4
|
|
Section 3
|
General Hydroponics Defguard Biofungicide/Bactericide
|
91865-3
|
|
Section 3
|
General Hydroponics Exile
|
91865-2
|
|
Section 3
|
General Hydroponics Prevasyn Insect Repellent/Insecticide
|
91865-1
|
|
Section 3
|
Master Nursery Pest Fighter Ready-to-Use Year-Round Spray Oil
|
6218-78
|
|
Section 3
|
Master Nursery Pest Fighter Year-Round Spray Oil
|
6218-71
|
|
Section 3
|
Mycostop Biofungicide
|
64137-5
|
|
Section 3
|
Natural Guard Brand by Ferti-Lome Horticultural Oil
|
67702-4-7401
|
|
Section 3
|
Natural Guard Brand by Ferti-Lome Horticultural Oil Ready to Spray
|
67702-4-7401
|
|
Section 3
|
Natural Guard Brand by Ferti-Lome Neem
|
70051-2-7401
|
|
Section 3
|
Obtego
|
80289-9-67690
|
|
Section 3
|
Pro-Mix Biofungicide + Mycorrhizae
|
74267-4
|
|
Section 3
|
Pro-Mix BRK Biofungicide + Mycorrhizae
|
74267-4
|
|
Section 3
|
Pro-Mix BRK20 Biofungicide + Mycorrhizae
|
74267-4
|
|
Section 3
|
Pro-Mix with Biofungicide
|
74267-1
|
|
Section 3
|
Safer Brand 3-in-1 Concentrate II
|
59913-13
|
|
Section 3
|
Safer Brand Bioneem Multi-Purpose Insecticide and Repellent Concentrate
|
70051-6-42697
|
|
Section 3
|
Safer Brand Neem Oil RTU
|
70051-13-42697
|
|
Section 3
|
Safer Brand Tomato and Vegetable Insect Killer II
|
59913-10
|
|
Section 3
|
Safer Brand Yard and Garden Insect Killer II
|
59913-10
|
|
Section 3
|
Tenet WP
|
80289-9
|
|
Section 25b
|
Earth’s Ally 3-in-1 Plant Spray Concentrate
|
996600-22002
|
|
Section 25b
|
Earth’s Ally Disease Control
|
996600-20007
|
|
Section 25b
|
Earth’s Ally Disease Control Concentrate
|
996600-20008
|
|
Section 25b
|
Earth’s Ally Insect Control
|
996600-20002
|
|
Section 25b
|
Earth’s Ally Insect Control for Organic Gardening
|
996600-22004
|
|
Section 25b
|
Grower’s Ally Spider Mite Control Concentrate
|
996600-20003
|
|
Section 25b
|
Keyplex Ecotrol Plus
|
73512-15001
|
|
Section 25b
|
Ortho Mole B Gon Mole and Vole Repellent Ready-to-Spray
|
239-12004
|
|
Section 25b
|
Tetracurb Concentrate
|
8596-16001
|
|
Section 25b
|
Tetracurb Organic
|
8596-18001
|
You can find the complete list of pesticides that are allowed for use on cannabis in high-THC cannabis production, the criteria WSDA used to establish the list, and information regarding statewide stop-sale orders in Washington on the WSDA website: https://agr.wa.gov/departments/cannabis/pesticide-use
Contact Information:
- For questions about the Cannabis List, please contact Laurel Schmalz:
- For information regarding the registration of pesticides and fertilizers, please contact the WSDA Pesticide and Fertilizer Registration Section:
- For information regarding how to comply with the pesticide label, please contact the WSDA Pesticide Compliance Program:
For any other questions, please contact your Liquor and Cannabis Board enforcement office.
