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Topramezone

General Information

• Chemical Class: benzoylpyrazole herbicides, oxazole herbicides
• Uses: Broadleaf weed control for corn
• Alternatives: Organic Agriculture
• Beyond Pesticides rating: Toxic

Health Effects

• EPA Acute Toxicity Class: IV (practically non-toxic)
• Cancer: Not Likely
• Endocrine Disruption: Not documented
• Reproductive Effects: Not documented
• Neurotoxicity: Not documented
• Kidney/ Liver Damage: Yes (39)
• Sensitizer/ Irritant: Yes (39)
• Birth/ Developmental Defects: Yes (39)

Environmental Effects

• Detected in Groundwater: Not documented
• Detected in Streams: Not documented
• Potential Leacher: Not documented
• Toxic to Birds: Not documented
• Toxic to Fish/ Aquatic Organisms: Not documented
• Toxic to Bees: Not documented
• Toxic to Mammals: Not documented
• Long-Range Transport: Not documented

Additional Information

• Regulatory Information:
  • EPA Factsheet
  • EPA Conditional Registration issued 8/2005