Researchers applied permethrin to soil and after that grew sugar beetroots, wheat, lettuce as well as cotton in the soil. Researchers found trace quantities of the permethrin deposit in the edible components of the plants at 30 and 120 days after planting. Trace quantities of permethrin have been discovered in foods consisting of bananas, collard environment-friendlies, squash and also watermelon. Nonetheless, less than 1% of the greater than 1,700 food examples checked had detectable levels of permethrin.