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PA Bulletin, Doc. No. 21-1241



List of Pesticides Which May be Used by Medical Marijuana Grower and Processors

[51 Pa.B. 4360]
[Saturday, August 7, 2021]

 The following pesticide active ingredients can be used legally in the growing and processing of seeds, immature medical marijuana plants, medical marijuana plants or medical marijuana and in accordance with the Pennsylvania Pesticide Control Act of 1973 (3 P.S. §§ 111.21—112). To qualify, products containing the following active ingredients must also be registered in the Commonwealth, and labeled for use in greenhouses on unspecified food crops or unspecified herbs, or both. Commonwealth pesticide registration can be checked at

 The Department of Agriculture (Department) evaluates potential pesticide active ingredients for inclusion on this list on an annual basis. Candidates for addition to this list should be submitted to the Department by June 1st of each year. This list will be reviewed and updated September of each calendar year. Deletions of active ingredients will occur on an as-needed basis. Submissions can be sent to the Department of Agriculture, Attn: Pesticide Registration, 2301 North Cameron Street, Harrisburg, PA 17110.

 Active ingredients will be considered for inclusion on this list by the following criteria:

 1) The active ingredient is in at least one Environmental Protection Agency (EPA) registered pesticide, or is exempt under section 25(b) of the Federal Insecticide, Fungicide, and Rodenticide (7 U.S.C.A. § 136w(b)).

 2) Pesticides containing this ingredient are labeled for unspecified food or herb crops.

 3) The active ingredient is exempt from the requirements of a tolerance on all food crops.

 The Department may also consider other factors, such as pyrolysis data or whether addition of an active ingredient may likely lead to widespread misuse.

List of Pesticide Active Ingredients approved for use by Medical Marijuana Grower/Processors
EPA Status Pesticide Type Comments Active Ingredient
25(b) Insecticide Castor Oil
25(b) Insecticide Cedar Oil
25(b) Insecticide Cinnamon
25(b) Fungicide, Insecticide Cinnamon Oil
25(b) Fungicide, Insecticide Citric Acid
25(b) Bactericide, Fungicide Clove
25(b) Insecticide Clove Oil
25(b) Fungicide Corn Oil
25(b) Insecticide Cottonseed Oil
25(b) Insecticide Garlic
25(b) Insect Repellent Garlic Oil
25(b) Fungicide Geraniol
25(b) Insecticide Geranium Oil
25(b) Fungicide, Insecticide Lemon Grass Oil
25(b) Insecticide Peppermint Oil
25(b) Insecticide Peroxyacetic Acid
25(b) Fungicide Potassium Sorbate
25(b) Insecticide Rosemary
25(b) Insecticide Rosemary Oil
25(b)Fungicide, Insecticide, Miticide Sesame Oil
25(b) Fungicide, Insecticide Sodium Lauryl Sulfate
25(b) Insecticide Soybean Oil
25(b) Fungicide Thyme
25(b) Fungicide, Insecticide, Miticide Thyme Oil
25(b) Insecticide White Pepper
Sec 3 Products Insecticide Azadirachtin
Sec 3 Products Fungicide Bacillus Amyloliquefaciens Strain D747
Sec 3 Products Fungicide For use in protected growing environments only (for example, greenhouses). Bacillus Pumilus Strain GHA 180
Sec 3 Products Fungicide Bacillus Subtilis QST713 Strain
Sec 3 Products Insecticide Bacillus Thuringiensis SSP. Aizawai
Sec 3 Products Insecticide Bacillus thuringiensis ssp israelensis
Sec 3 Products Insecticide Beauveria bassiana Strain GHA
Sec 3 Products Insecticide Burkholderia ssp Strain A396
Sec 3 Products Insecticide Canola Oil
Sec 3 Products Insect Repellent Capsicum Oleoresin Extract
Sec 3 Products Insecticide Chromobacterium Sub Strain PRAA4-1 Cells
Sec 3 Products Fungicide, Insecticide Clarified Hydrophobic Extract of Neem Oil
Sec 3 Products Fungicide Copper Octanoate
Sec 3 Products PGR Cytokinin (Kinetin)
Sec 3 Products Insecticide Diatomaceous Earth
Sec 3 Products PGR Gibberellins (Gibberellic Acid)
Sec 3 Products PGR Harpin Alpha Beta
Sec 3 Products Antimicrobial, Fungicide Post-harvest application prohibited Hydrogen Peroxide
Sec 3 Products PGR Applications allowed in furrow at planting or in hydroponics only. IBA (Indole-3-Butyric Acid)
Sec 3 Products Insecticide Isaria fumosorosea Apopka Strain 97
Sec 3 Products Insecticide, PGR Kaolin
Sec 3 Products Insecticide Mineral Oil
Sec 3 Products Fungicide Use only allowed prior to final transplant, unless grown in recirculating hydroponics systems. Mono-Potassium and Di- Potassium Salts of Phosphorous Acid
Sec 3 Products Insecticide Monopotassium Phosphate
Sec 3 Products Nematicide Myrothecium Verrucaria
Sec 3 Products Fungicide, Insecticide Neem Oil, Cold Pressed
Sec 3 Products Fungicide Potassium bicarbonate
Sec 3 Products Insecticide Use allowed prior to final transplant. Potassium Laurate
Sec 3 Products Fungicide, Insecticide Potassium Salts of Fatty Acids
Sec 3 Products Insecticide Pyrethrins
Sec 3 Products Fungicide Reynoutria sachalinensis extract
Sec 3 Products Molluscicide Sodium Ferric EDTA
Sec 3 Products Fungicide Streptomyces lydicus WYEC 108
Sec 3 Products Fungicide Trichoderma Asperellum Strain ICC 012


[Pa.B. Doc. No. 21-1241. Filed for public inspection August 6, 2021, 9:00 a.m.]

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