Malathion is an organophosphate insecticide. It interferes with the nervous system by blocking an enzyme that normally acts as an off switch by ending the signal. Without the enzyme, the nerve keeps firing and eventually the nervous system fails. Malathion is used both in agricultural and residential settings.
If you have questions about malathion, or any pesticide-related topic, please call NPIC at 1-800-858-7378 (8:00am - 12:00pm PST), or email at firstname.lastname@example.org.