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Updates from the Daily News Blog

Organophosphate Pesticide Drift from Agricultural Fields Elevates Risk for Pregnant Farmworkers
October 28, 2025

Health Savings Outweigh Cost of Banning Pesticides Linked to Parkinson’s Disease, According to Study
February 1, 2024

New Study Spotlights Ten Pesticides Implicated in Development of Parkinson's
May 23, 2023

Take Action: Tell Public Officials to Stop Mosquito Spraying and Adopt a Safe, Effective Mosquito Management Plan
July 20, 2020

Beekeepers at Risk of Losing Hives after Mosquito Insecticide Spraying
November 21, 2018

Take Action: Tell Your Public Officials to Stop Spraying Pesticides and Adopt a Safe, Effective Mosquito Management Plan
September 10, 2018

Doctor in South Florida Sues to Block Hazardous Mosquito Spray
July 11, 2017

Common Mosquito Control Insecticides Decrease Motor Function in Infants
June 13, 2017

North Miami Passes IPM Plan in Response to Local Activism
February 1, 2017

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Naled

General Information

• Fact Sheet: Naled.pdf
• Product Names:

  Dibrom (AMVAC)
  Trumpet (AMVAC)
  Fly Killer D (AMVAC)
  Prokil Naled (Gowan)

• Chemical Class: Organophosphate
• Uses: Control of mosquitoes, blackflies, aphids, mites
• Alternatives: Organic agriculture
• Beyond Pesticides rating: Toxic

Health and Environmental Effects

• Cancer: Not documented
• Endocrine Disruption: Not documented
• Reproductive Effects: Yes (1)
• Neurotoxicity: Yes (2)
• Kidney/Liver Damage: Not documented
• Sensitizer/ Irritant: Yes (2)
• Birth/Developmental: Yes (1)
• Detected in Groundwater: Yes (3)
• Potential Leacher: Not documented
• Toxic to Birds: Yes (3)
• Toxic to Fish/Aquatic Organisms: Yes (3)
• Toxic to Bees: Yes (3, 1)

Residential Uses as Found in the ManageSafe™ Database

• Cockroaches
• Mosquitoes

Additional Information

• Regulatory Status:
  • EPA Reregistration Eligibility Decision (RED) signed (07/2006)
  • EPA Factsheet (2002)
• Supporting information:
  • Beyond Pesticides' Letter to EPA (2016)
  • PAN Pesticides Database: Naled (Pesticide Action Network)
  • NCAP Factsheet (Northwest Coalition for Alternatives to Pesticides)
• Studies [compiled from the Pesticide-Induced Diseases Database]
  • A pesticide and iPSC dopaminergic neuron screen identifies and classifies Parkinson-relevant pesticides. Paul, K.C., Krolewski, R.C., Lucumi Moreno, E., Blank, J., Holton, K.M., Ahfeldt, T., Furlong, M., Yu, Y., Cockburn, M., Thompson, L.K. and Kreymerman, A., 2023. Nature Communications, 14(1), p.2803.
  • Persistence of aerially-sprayed naled in coastal sediments. Bamiduro, G. J., Kumar, N., Solo-Gabriele, H. M., & Zahran, E. M. (2021). Persistence of aerially-sprayed naled in coastal sediments. The Science of the total environment, 794, 148701. https://doi.org/10.1016/j.scitotenv.2021.148701
  • Field Assessment of Naled and Its Primary Degradation Product (Dichlorvos) in Aquatic Ecosystems Following Aerial Ultra-low Volume Application for Mosquito Control. Smith, C.D., Hladik, M.L., Kuivila, K.M. et al. Field Assessment of Naled and Its Primary Degradation Product (Dichlorvos) in Aquatic Ecosystems Following Aerial Ultra-low Volume Application for Mosquito Control. Arch Environ Contam Toxicol 84, 307–317 (2023). https://doi.org/10.1007/s00244-023-00981-8
  • Prenatal naled and chlorpyrifos exposure is associated with deficits in infant motor function in a cohort of Chinese infants. Silver, M. K., Shao, J., Zhu, B., Chen, M., Xia, Y., Kaciroti, N., Lozoff, B., & Meeker, J. D. (2017). Prenatal naled and chlorpyrifos exposure is associated with deficits in infant motor function in a cohort of Chinese infants. Environment international, 106, 248–256. https://doi.org/10.1016/j.envint.2017.05.015
  • Acute toxicity and risk assessment of permethrin, naled, and dichlorvos to larval butterflies via ingestion of contaminated foliage. Hoang, T. C., & Rand, G. M. (2015). Acute toxicity and risk assessment of permethrin, naled, and dichlorvos to larval butterflies via ingestion of contaminated foliage. Chemosphere, 120, 714–721. https://doi.org/10.1016/j.chemosphere.2014.10.040
  • Mosquito control insecticides: a probabilistic ecological risk assessment on drift exposures of naled, dichlorvos (naled metabolite) and permethrin to adult butterflies. Hoang, T. C., & Rand, G. M. (2015). Mosquito control insecticides: a probabilistic ecological risk assessment on drift exposures of naled, dichlorvos (naled metabolite) and permethrin to adult butterflies. The Science of the total environment, 502, 252–265. https://doi.org/10.1016/j.scitotenv.2014.09.027
  • Monitoring the aquatic toxicity of mosquito vector control spray pesticides to freshwater receiving waters. Phillips, B. M., Anderson, B. S., Voorhees, J. P., Siegler, K., Denton, D., TenBrook, P., Larsen, K., Isorena, P., & Tjeerdema, R. S. (2014). Monitoring the aquatic toxicity of mosquito vector control spray pesticides to freshwater receiving waters. Integrated environmental assessment and management, 10(3), 449–455. https://doi.org/10.1002/ieam.1534
  • Use of butterflies as nontarget insect test species and the acute toxicity and hazard of mosquito control insecticides. Hoang, T. C., Pryor, R. L., Rand, G. M., & Frakes, R. A. (2011). Use of butterflies as nontarget insect test species and the acute toxicity and hazard of mosquito control insecticides. Environmental toxicology and chemistry, 30(4), 997–1005. https://doi.org/10.1002/etc.462
  • Temporal trends of agricultural organophosphate pesticide use in California and proximity to pregnant people in 2021. Rotkin-Ellman, M., Carpenter, C., Richardson, M.J. et al. Temporal trends of agricultural organophosphate pesticide use in California and proximity to pregnant people in 2021. BMC Public Health 25, 3121 (2025). https://doi.org/10.1186/s12889-025-23939-y