Gateway on Pesticide Hazards and Safe Pest Management

Sethoxydim

General Information

• Product Names:
  Poast (BASF)
  Segment (BASF)
  Rezult (BASF)

• Chemical Class: Cyclohexenone herbicide
• Uses: Post-emergence for selective control of annual and perennial grass weeds in broadleaf crops such as soybeans, sunflowers, alfalfa, dry peas/beans, sugar beets, peanuts, corn, grains, fruits, tree nuts, vegetables, and herbs, ornamentals, also used in recreational areas and right of way, and public and comerical building structure.
• Alternatives: Organic agriculture, Least-toxic invasive weed managment
• Beyond Pesticides rating: Toxic

Health and Environmental Effects

• Cancer: Not documented
• Endocrine Disruption: Not documented
• Reproductive Effects: Yes (4, 8)
• Neurotoxicity: Not documented
• Kidney/Liver Damage: Yes (8)
• Sensitizer/ Irritant: Yes (4)
• Birth/Developmental: Yes (4, 8)
• Detected in Groundwater: Not documented
• Potential Leacher: Not documented
• Toxic to Birds: Not documented
• Toxic to Fish/Aquatic Organisms: Not documented
• Toxic to Bees: Yes (19)

Additional Information

• Regulatory Status:
  • EPA Reregistration Eligibility Decision (RED) signed (9/2005)
• Supporting information:
  • Extoxnet Sethoxydim Factsheet (Extension Toxicology Network)
  • PAN Pesticides Database: Sethoxydim (Pesticide Action Network)