When using persistent pesticides, consider whether their continued presence in the environment is likely to harm plants and animals. Sometimes animals can be harmed when they feed on plants or animals that have pesticide residues on or in them. Harmful Effects on Surfaces Sometimes surfaces are harmed by pesticides or pesticide residues. Some surfaces may become discolored by contact with certain pesticides. Other surfaces may be pitted or marked by contact with some pesticides.
Some pesticides can corrode or obstruct electronic systems or metal.
Sometimes a pesticide will leave a visible deposit on the treated surface. Properly , which was developed by Ohio State University in cooperation with the Cooperative Extension Service, U.S. Department of Agriculture, and the Office of Pesticide Programs, U.S. Environmental Protection Agency.