Gateway on Pesticide Hazards and Safe Pest Management

Metribuzin

General Information

• Product Names:
  Sencor (Bayer)
  Domain (Bayer) formulated with Flufenacet
  F6482 (FMC) formulated Sulfentrazone
  Canopy (Du Pont) formulated with Chlorimuron
  Metric MBZ (Winfield)
  Metri (Unitedd Phosphorus)
  Cloak (Nufarm) formulated with Chlorimuron

• Chemical Class: Triazine herbicide
• Uses: Control of broadleaf weeds and grasses on food crops: wheat, asparagus, carrots, tomato, barley, corn, wheat, peas, soybean, potato, garbanzos, lentils, sugarcane; feed crops: barley, bermudagrass, bluegrass, grass (forage/fodder/hay), timothy, wheat, alfalfa, lentils, sainfoin; non-food crop: grasses grown for seed, recreational areas, ornamental lawns and turf (no residential uses).
• Alternatives: Organic agriculture
• Beyond Pesticides rating: Toxic

Health and Environmental Effects

• Cancer: Not documented
• Endocrine Disruption: Yes (30, 36)
• Reproductive Effects: Yes (8)
• Neurotoxicity: Not documented
• Kidney/Liver Damage: Yes (4)
• Sensitizer/ Irritant: Not documented
• Birth/Developmental: Yes (8)
• Detected in Groundwater: Not documented
• Potential Leacher: Not documented
• Toxic to Birds: Yes (8)
• Toxic to Fish/Aquatic Organisms: Not documented
• Toxic to Bees: Not documented

Additional Information

• Regulatory Status:
  • EPA Reregistration Eligibility Decision (RED) signed (6/1997)
• Supporting information:
  • Extoxnet Metribuzin Factsheet (Extension Toxicology Network)
  • PAN Pesticide Database – Metribuzin (Pesticide Action Network)
• Studies:
• Agricultural pesticide use and risk of glioma in Nebraska, United States. Lee, W., et al. 2005. Occupational and Environmental Medicine 62(11):786-792