Chlorpyrifos is a pesticide used to control cutworms, corn rootworms, cockroaches, grubs, flea beetles, flies, termites, fire ants, mosquitoes, and lice. It is used on crops, animals, golf courses and as a wood treatment. The data here do not include studies that only looked at effects on acetylcholinesterase.
All Chlorpyrifos studies included in the timeline were performed at doses of 5 parts per million or less (5 mg/kg bw).