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Gateway on Pesticide Hazards and Safe Pest Management

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Methyl parathion

General Information

  • Product Names:
  • Chemical Class: Organophosphate insecticide
  • Uses: Control of many types of pests, including mites, thrips, weevils, aphids, and leafhoppers on terrestrial food and feed crops: Alfalfa, almonds, barley, dried beans, cabbage, corn, cotton, grass forage/fodder/hay, hops, lentils, oats, onion, pastures, dried peas, pecans, rangeland, rape seed (canola), rice, rye, soybeans, sugar beets, sunflower, sweet potatoes, walnuts, wheat, white potatoes, and yams.
  • Alternatives: Organic agriculture
  • Beyond Pesticides rating: Toxic

Health and Environmental Effects

  • Cancer: Not documented
  • Endocrine Disruption: Not documented
  • Reproductive Effects: Yes (4)
  • Neurotoxicity: Yes (4)
  • Kidney/Liver Damage: Not documented
  • Sensitizer/ Irritant: Not documented
  • Birth/Developmental Not documented
  • Detected in Groundwater: Not documented
  • Potential Leacher: Not documented
  • Toxic to Birds: Yes (8)
  • Toxic to Fish/Aquatic Organisms: Yes (8)
  • Toxic to Bees: Yes (8)

Additional Information