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Bulletin No 22-01: Updated List of Pesticides Allowed in the Production of High THC Cannabis

To:  Cannabis Industry Members

Fr:   WSLCB and WSDA

Re:   Updated List of Pesticides Allowed in the Production of High THC Cannabis

The Washington State Department of Agriculture (WSDA) has recently updated the list of  pesticides that are allowed for use in the production of high THC cannabis (cannabis) in Washington State, based on criteria previously established by WSDA.

  • WSDA has added 2 new Section 3 pesticides and 5 new Section 25(b) pesticides to the list of allowable products for a total of 7 new products.
  • WSDA removed 28 Section 3 pesticides and 22 Section 25(b) pesticides from the list for a total of 50 products removed. See details for those removed in the tables below.
  • The updated list contains 261 Section 3 pesticides and 88 Section 25(b) pesticides, for a total of 349 products allowed for use in the production of 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.

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, as long as 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 that are registered for distribution in Washington is available from the WSU PICOL database.

Please check your stock of pesticides against the list to ensure that you are using an allowed product. Cannabis growers can continue to use any existing stocks of pesticides that were removed from the list, but no new product can be purchased.

All of the pesticides that were added to the list contain active ingredients that were already allowed for use in cannabis production.

Some pesticides are labeled for application to soil or to crop plants, while some pesticides 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

Isarid Wettable Powder Mycoinsecticide

89635-5

Section 3

Trianum-P Biological Fungicide

89635-3

Section 25b

Earth’s Ally 3-in-1 Plant Spray

996600-22001

Section 25b

Earth’s Ally 3-in-1 Plant Spray Concentrate

996600-22002

Section 25b

Earth’s Ally Insect Control for Organic Gardening

996600-22004

Section 25b

Ecovia 3-in1 Emulsifiable Concentrate

73079-22001

Section 25b

Soyote

994340-22001

Products Removed from the List: A review found that the labeled uses did not meet WSDA criteria:

Type

Name

EPA or WA Registration Number

Section 3

Arcus Plant Growth Regulator for Seed Treatment

84845-5

Section 3

Merus 3.0*

8329-108

Section 3

Valley-phite

82940-1

Section 25b

Canelys

994150-21001

*Merus 3.0 was labeled only for purchase and use by federal, state, tribal, or local government officials for public health or vector control to perform adult mosquito control applications and is not labeled for use in the production of cannabis.

Products Removed from the List: Product registration was cancelled or non-renewed by the registrant

Type

Name

EPA or WA Registration Number

Section 3

Aviv

91473-1-86182

Section 3

Azamax Botanical Insecticide Miticide Nematicide

91865-4

Section 3

Bi-Carb Old Fashioned Fungicide

54705-10

Section 3

Contego SL Plant Growth Regulator Soluble Liquid

73049-493

Section 3

Deadzone

73729-1

Section 3

Engage Agro Iron Fist Slug and Snail Bait

67702-32-87865

Section 3

Ferti-Lome Horticultural Oil Spray Ready to Spray

48813-1-7401

Section 3

Granada 5

81803-6-93161

Section 3

HDH Peroxy Broad Spectrum Bactericide/Fungicide

83103-1

Section 3

Howler Lawn and Garden Organic Fungicide

91197-3-92488

Section 3

Hydroworxx Disease Control Ready to Use

67702-1

Section 3

Hydroworxx Insecticidal Soap 3 in 1 Concentrate

67702-11

Section 3

Hyrdoworxx Insecticidal Soap 3 in 1 Ready to Use

67702-21

Section 3

Hydroworxx Mite & Insect Killer Concentrate

67702-36

Section 3

Hydroworxx Mite & Insect Killer Ready to Use

67702-35

Section 3

Incept

100-9219

Section 3

Lynx EC 4.1

82074-6

Section 3

Lynx EC 5.0

82074-7

Section 3

Mycostop Mix

64137-9

Section 3

Optify

33270-37

Section 3

Organocide Organic Fungicide

70870-3-70179

Section 3

Pyola Insect Spray RTU

67702-6-56872

Section 3

Serenade Garden Disease Control Ready to Use

264-1154

Section 3

Terraneem EC

88760-5

Section 3

Xpectro OD

82074-5

Section 25b

All Per-Plus Concentrate

997750-15001

Section 25b

All Per-Plus Ready to Use

997750-15002

Section 25b

Axcent

999550-21001

Section 25b

Custos

996590-19001

Section 25b

Deliverance

89943-19002

Section 25b

Dr. Earth Final Stop Disease Control Fungicide

999520-14002

Section 25b

Dr. Earth Final Stop Vegetable Garden Insect Killer

999520-12003

Section 25b

Dr. Earth Final Stop Yard & Garden Insect Killer

999520-12001

Section 25b

Ecologic Garden Insect Killer Concentrate

72041-14005

Section 25b

Ecotec

48813-09001

Section 25b

Fortify Fungicide

89112-19001

Section 25b

Huma Gro Thyme Pro

999690-20001

Section 25b

Instant Mite Killer Professional Concentrate

996880-16002

Section 25b

Instant Mite Killer Ready To Use

996880-16001

Section 25b

Mantis EC Botanical Insecticide Miticide

996860-17001

Section 25b

Nuke Em Advanced

997940-19001

Section 25b

ProMax

999690-04002

Section 25b

Spider Mite Control (Athena)

93752-18002

Section 25b

Spider Mite Control (Vegalab)

89943-15002

Section 25b

Spore Control

89943-15003

Section 25b

Super Safe Organic Insecticide & Fungicide Concentrate

997940-17002

You can find the complete list of pesticides that are allowed for use in cannabis production, the criteria WSDA used to establish the list, and information regarding statewide stop-sale orders in Washington on the WSDA websitehttps://agr.wa.gov/departments/marijuana/pesticide-use

For information regarding the registration of pesticides and fertilizers, please contact the WSDA Pesticide and Fertilizer Registration

For information regarding how to comply with the pesticide label, please contact the WSDA Pesticide Compliance

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