Researchers used permethrin to dirt and afterwards grew sugar beets, wheat, lettuce and cotton in the soil. Scientists discovered trace amounts of the permethrin deposit in the edible components of the plants at 30 and 120 days after planting. Trace quantities of permethrin have actually been discovered in foods including bananas, collard greens, squash as well as watermelon. Nonetheless, much less than 1% of the more than 1,700 food examples evaluated had observable levels of permethrin.