Gateway test

Prometryn

General Information

• Product Names:

  Caparol (Syngenta)
  Suprend (Syngenta) formulated with Trifloxysulfuron-sodium
  Proetrex technical (Verolit)
  Cotton-Pro (Makhetshim)

• Chemical Class: Substituted thiomethyl triazine herbicide
• Uses: Applied to celery, dill, pigeon peas, and cotton for control of broadleaf weeds including: black nightshade, cocklebur, coffeeweed, dock, Florida pusley, ground-cherry, henbit, lambsquarters, mallow, morningglory, mustard, pigweed, prairie sunflower, prickly sida, purslane, ragweed, rough blackfoot, smartweed, spurred anoda; and grasses including: barnyardgrass, crabgrass, foxtail, goosegrass, junglerice, panicum, sandbur, signalgrass, and wild oat.
• Alternatives: Organic agriculture
• Beyond Pesticides rating:

Health and Environmental Effects

• Cancer: Not documented
• Endocrine Disruption: Yes (1)
• Reproductive Effects: Yes (2)
• Neurotoxicity: Not documented
• Kidney/Liver Damage: Not documented
• Sensitizer/ Irritant: Yes (2)
• Birth/Developmental: Yes (2)
• Detected in Groundwater: Not documented
• Potential Leacher: Yes (2)
• Toxic to Birds: Practically Non-toxic (2)
• Toxic to Fish/Aquatic Organisms: Yes (2)
• Toxic to Bees: Practically Non-toxic (2)

Additional Information

• Regulatory Status:
  • EPA Reregistration Eligibility Decision signed 2/1996
• Supporting information:
  • PAN Pesticides Database: Prometryn (Pesticide Action Network)
  • EXTOXNET factsheet
• Studies [compiled from the Pesticide-Induced Diseases Database]
  • Occurrence and ecological risk of typical pesticides in a river–lake system. Qin, Y. et al. (2025) Occurrence and ecological risk of typical pesticides in a river–lake system, Water Science and Engineering. Available at: https://www.sciencedirect.com/science/article/pii/S1674237025000833.