Gateway on Pesticide Hazards and Safe Pest Management

Updates from the Daily News Blog

28 Pesticides Linked to Mammary Gland Cancer, Inadequately Reviewed by EPA
August 7, 2020

Bill Introduced to Protect Oregonians from Forestry Pesticide Use
February 12, 2015

Oregon Legislators Working to Introduce Herbicide Spray Policy
October 30, 2014

Study Shows Goats as Viable Control Agent for Opportunistic Wetland Reeds
October 7, 2014

Oregon Spray Pilot Fined $10,000 for Pesticide Drift that Residents Say Poisoned Them
August 26, 2014

Tamarisk Tree's Role as 'Invasive' in Southwest Questioned
July 22, 2014

Pesticide Law Violations Uncovered in Oregon Timberland Spraying
April 10, 2014

Herbicide Applications Undermining Protection of Biodiversity
April 5, 2012

Students Poisoned by Pesticides Sprayed on Playing Field Outside of Classroom
October 27, 2011

Residents Battle with City Park District To Prevent Toxic Pesticide Use
October 17, 2011

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Triclopyr

General Information

• Fact Sheet: Triclopyr.pdf
• Product Names:

  Forestry Garlon 4 (Dow)
  Garlon 4 (Dow)
  Remedy (Dow)
  Turflon Ester (Dow)
  Garlon 3A (Dow)
  Grandstand CA (Dow)
  Grandstand R (Dow)
  Pathfinder II (Dow)
  Remedy RTU (Dow)
  Redeem R&P (Dow), formulated with Clopyralid TEA
  Confront (Dow), formulated with Clopyralid
  PastureGard (Dow), formulated with Fluroxypyr

• Chemical Class: Pyridine compound herbicide
• Uses: Control broad leaf weeds and brush on rights-of-way,pasture and rangelands, forests, rice, and turf, including home lawns
• Alternatives: Least-toxic Weed managment, Organic agriculture, Organic lawn care
• Beyond Pesticides rating: Toxic

Health and Environmental Effects

• Cancer: Not documented
• Endocrine Disruption: Not documented
• Reproductive Effects: Yes (6)
• Neurotoxicity: Not documented
• Kidney/Liver Damage: Yes (11)
• Sensitizer/ Irritant: Yes (8)
• Birth/Developmental: Yes (6)
• Detected in Groundwater: Yes (6)
• Potential Leacher: Yes (8)
• Toxic to Birds: Not documented
• Toxic to Fish/Aquatic Organisms: Yes (8)
• Toxic to Bees: Not documented

Residential Uses as Found in the ManageSafe™ Database

• Dandelions
• Plantains
• Japanese Knotweed
• Chickweed

Additional Information

• Regulatory Status:
  • EPA Reregistration Eligibility Decision (RED) signed (9/1997)
• Supporting information:
  • The Safer Choice (Beyond Pesticides)
  • NCAP Triclopyr Factsheet (Northwest Coalition for Alternatives to Pesticides)
  • Extoxnet Triclopyr Factsheet (Extension Toxicology Network)
  • PAN Pesticides Database:Triclopyr (Pesticide Action Network)
  • Scorecard Triclopyr Factsheet (The Pollution Information Site)
• Studies:
• US EPA's regulatory pesticide evaluations need clearer guidelines for considering mammary gland tumors and other mammary gland effects. Cardona, B. and Rudel, R.A., 2020. Molecular and Cellular Endocrinology, p.110927.