Ethoprop

An organothiophosphate nematicide and insecticide; decreases the infectivity of M. chitwoodi and M. hapla second-stage juveniles (EC50s = 5.6 and 6.8 µg/ml, respectively); inhibits hatching of M. chitwoodi egg masses and M. chitwoodi and M. hapla free eggs (EC50s = 0.2, 46, and 83.3 µg/ml, respectively); decreases the number of M. chitwoodi nematodes in tomato roots when added to soil from fields without previous ethoprop exposure at 1.8 µg/g; biodegraded in soil from fields previously exposed to ethoprop; toxic to rats via oral administration and dermal contact (LD50s = 47 and 226 mg/kg, respectively) as well as inhalation (LD50 = 0.123 mg/L); toxic to bluegill (LC50 = 0.32 mg/L)