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Oryzalin

General Information

• Beyond Pesticides Oryzalin ChemWatch Factsheet
• Oryzalin product names
• Chemical Class: Dinitroaniline sulfonamide herbicide
• Uses: control of annual grasses, broadleaf weeds, woody shrubs and vines in grapes, berries and orchard crops, fruits nuts; residential and commercial/industrial lawns and turf, golf course turf, ornamentals and shade trees, Christmas tree plantations, fencerows/hedgerows, nonagricultural rights-of-way, and uncultivated areas including patios, paths, paved areas and power stations
• Alternatives: Agriculture, ornamental/ lawn, Golf courses, Christmas trees, Rights-of-way
• Beyond Pesticides rating: Toxic

Health Effects

• EPA Acute Toxicity Class: III (slightly toxic)
• Cancer: Not documented
• Endocrine Disruption: Not documented
• Reproductive Effects: Not documented
• Neurotoxicity: Not documented
• Kidney/ Liver Damage:Yes (11)
• Sensitizer/ Irritant: Yes (8)
• Birth/ Developmental Defects: Yes (7)

Environmental Effects

• Detected in Groundwater: Not documented
• Detected in Streams: Not documented
• Potential Leacher: Yes (4)
• Toxic to Birds: Not documented
• Toxic to Fish/ Aquatic Organisms: Yes (8)
• Toxic to Bees: Not documented
• Toxic to Mammals: Not documented
• Long-Range Transport: Not documented

Additional Information

• Regulatory Information:
  • EPA Reregistration Eligibility Decision (RED) signed (9/1994)
• Supporting information:
  • NCAP Oryzalin Factsheet (Northwest Coalition for Alternatives to Pesticides)
  • Extoxnet Oryzalin Factsheet (Extension Toxicology Network)
  • PAN Pesticides Database:Oryzalin (Pesticide Action Network)
  • Scorecard Oryzalin Factsheet (Environmental Defense Fund)
• Key Studies: