Propoxur
A carbamate insecticide that works on contact rather than systemically, aimed at pests infesting stored food in warehouses, mills, and grain stores. The same product also controls sucking and chewing insects on fruit, vegetable, cereal, sugarcane, and cocoa crops. Because its residues break down only slowly, labels impose strict rates, intervals, and precautions to keep treated commodities within legal limits. The World Health Organization rates it as moderately hazardous, Class II, a reminder that warehouse pest control demands trained applicators and careful record-keeping.