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Updates in Pesticide Tolerance Regulations

Pesticides often carry a negative connotation with them but can be a valuable tool for farmers when used responsibly by helping them grow more food on less land and protecting the crops they work hard to grow from pests and disease. The Environmental Protection Agency is constantly monitoring pesticide safety data and collaborates with state agencies to review new findings and adjust regulations as needed to protect human health and the environment.  

Below are a few of the latest updates in pesticide tolerance regulations along with the agricultural sectors that are impacted.  

Orthosulfamuron  

Use: Orthosulfamuron is a systemic herbicide that is used against annual and perennial broad leaf weeds, sedges, and barnyard grass. 

Commodities: Rice. 

Update: Residual tolerance was requested by Nichino America under the Federal Food, Drug and, Cosmetic Act (FFDCA) and effective on February 17th, 2021.  

Clopyralid 

Use: Clopyralid is an herbicide used for selective control of noxious and nuisance weeds like dandelions, clover, and thistle by mimicking plant growth hormone that causes plant termination.  

Commodities: Wheatgrass bran, forage, germ, grain, middling, shorts, and straw. 

Update: Residual tolerance was requested by the Interregional Research Project Number 4 (IR-4) under the Federal Food, Drug and, Cosmetic Act (FFDCA) and effective on February 17th, 2021. 

Oxalic Acid 

Use: Oxalic acid is a naturally-occurring acid found in plants that is used to kill varroa mites that are deadly to honeybee colonies.  

Commodities: Honey and honeycomb. 

Update: An exemption was established by the EPA from the requirement of a tolerance for residues of oxalic acid on honey and honeycomb. This regulation eliminates the need to establish a maximum permissible level of oxalic acid residues and was effective February 23rd, 2021.  

Tretraniliprole 

Use: Tretraniliprole is an newly-developed insecticide that was designed to prevent a wide range of common agricultural pests. 

Commodities: Tree nuts, stone fruit, vine crops, corn, tobacco, leafy vegetables, soybeans, citrus, sod, and more.  

Update: Residue tolerance was requested by Bayer CropScience under the Federal Food, Drug and, Cosmetic Act (FFDCA) and effective on February 24th, 2021.  

Emamectin Benzoate 

Use: The benzoate salt of emamectin is used to prevent emerald ash borer infestations in ash trees.  

Commodities: Tea. 

Update: Residual tolerance was requested by Syngenta Crop Protection under the Federal Food, Drug, and Cosmetic Act (FFDCA) and effective on February 17th, 2021. 

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