EPA Sets New Tolerances for Pyridate Pesticide on Mint, Corn, and Vegetables
Published Date: 2/27/2026
Rule
Summary
The EPA just updated the rules for using the pesticide pyridate on mint, corn, and some veggies like kohlrabi. Farmers, food makers, and pesticide companies should note these new limits to keep food safe. The changes kick in on February 27, 2026, and anyone wanting to object has until April 28, 2026, to speak up—no extra costs, just clearer rules!
Analyzed Economic Effects
4 provisions identified: 3 benefits, 0 costs, 1 mixed.
New pyridate residue limits set
EPA established legal tolerances for residues of the herbicide pyridate on specific crops effective February 27, 2026: field corn subgroup 15-22C at 0.03 ppm; kohlrabi at 0.03 ppm; vegetable, brassica, head and stem, group 5-16 at 0.03 ppm; mint, dried leaves at 30 ppm; and mint, fresh leaves at 6 ppm. Agricultural producers, food manufacturers, and pesticide manufacturers are listed as potentially affected and must follow these tolerance levels.
Mint tolerances set higher than requested
EPA is establishing tolerances for mint at levels higher than the petitioner requested: mint, dried leaves at 30 ppm (petitioner requested 15 ppm) and mint, fresh leaves at 6 ppm (petitioner requested 3 ppm). EPA states these higher levels are based on OECD procedures and corrected residue values.
EPA determined tolerances are safe
EPA reviewed the data and determined the established tolerances meet the Federal Food, Drug, and Cosmetic Act safety standard, finding a "reasonable certainty that no harm will result" from aggregate exposure, including considerations for infants and children. The rule finalizes EPA's conclusion that the acute and chronic dietary risk estimates are below the Agency's level of concern.
Mint tolerances harmonized with Canada
EPA states the revised mint tolerances will be harmonized between the U.S. and Canada and that there are no issues with harmonization; Canadian MRLs for mint are at the same levels as the existing U.S. tolerances. This action follows a joint review between EPA and the Pest Management Regulatory Agency (PMRA) of Canada.
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