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Updates from the Daily News Blog

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Neonicotinoid Insecticides Cause Deadly Overheating Behavior in Honey Bees, Study Finds
January 29, 2026

Nature-Based, Ecological Land Management Serves as Nonchemical Approach to Pest Suppression
January 15, 2026

Bat Conservation Enhances Ecosystems and Agricultural Productivity, Natural Alternative to Pesticides
January 2, 2026

Holiday Wishes and Looking Toward Our Organic Future for the Common Good in the New Year
December 24, 2025

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December 16, 2025

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December 5, 2025

Beyond Pesticides Calls on Governors To Restore Ecological Balance with Land Management Practices
November 24, 2025

Hazardous Compounds Formed with Pesticide Use, Studies Find, But Overlooked in Safety Reviews
November 20, 2025

Climate Change Threat to Ecosystem Management of Insects Focus of New Book
November 19, 2025

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Penoxsulam

General Information

• Product Names:

  Grasp (Dow)
  Granite (Dow)
  Sapphire (Dow)
  Pindar (Dow)
  Galleon (Sepro)

• Uses: Aquatic Vegetation
• Beyond Pesticides rating:

Health and Environmental Effects

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

Additional Information

• Regulatory Status:
  • Penoxsulam; Federal Register Pesticide Tolerance (2020)
  • EPA Pesticide Factsheet (2004)
• Supporting information:
  • National Center for Biotechnology Information, PubChem Compound Database
  • PAN Pesticides Database:Penoxsulam (Pesticide Action Network)
• Studies [compiled from the Pesticide-Induced Diseases Database]
  • Enhanced Herbicide Metabolism and Target Site Mutation Enabled the Multiple Resistance to Cyhalofop-butyl, Florpyrauxifen-benzyl, and Penoxsulam in Echinochloa crus-galli. Yu, X. et al. (2024) Enhanced Herbicide Metabolism and Target Site Mutation Enabled the Multiple Resistance to Cyhalofop-butyl, Florpyrauxifen-benzyl, and Penoxsulam in Echinochloa crus-galli, Journal of Agricultural and Food Chemistry. Available at: https://pubs.acs.org/doi/abs/10.1021/acs.jafc.4c02450.
  • The non-target site resistance mechanism to Penoxsulam in Echinochloa crus-galli var. zelayensis. Lyu, Q., Jiang, B., He, P. et al. The non-target site resistance mechanism to Penoxsulam in Echinochloa crus-galli var. zelayensis. Plant Soil (2024). https://doi.org/10.1007/s11104-024-06716-5
  • Biochemical and Histological Evaluation of Penoxsulam Herbicide on an Animal Model. Chaurasia, V., Aggarwal, M. and Garg, M. (2022) Biochemical and Histological Evaluation of Penoxsulam Herbicide on an Animal Model, Journal of Pharmaceutical Research International. Available at: https://www.researchgate.net/publication/358594997_Biochemical_and_Histological_Evaluation_of_Penoxsulam_Herbicide_on_an_Animal_Model.
  • Acute Renal Failure following Penoxsulam poisoning. Karunatilake, H. (2011). Acute Renal Failure following Penoxsulam poisoning. Clinical Toxicology, 50(1), 79. https://doi.org/10.3109/15563650.2011.633492
  • Toxic Effects of Penoxsulam Herbicide in Two Fish Species Reared in Southern Brazil. Murussi, C.R., Thorstenberg, M.L., Leitemperger, J. et al. Toxic Effects of Penoxsulam Herbicide in Two Fish Species Reared in Southern Brazil. Bull Environ Contam Toxicol 92, 81–84 (2014). https://doi.org/10.1007/s00128-013-1137-x