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Updates from the Daily News Blog

Dire Pediatric Cancer Risk Linked to Pesticide Mixtures, Laws To Protect Children Found To Be Lax
December 3, 2025

EPA To Allow Dicamba Herbicide Used in Genetically Engineered Crops, Prone to Drift and Weed Resistance
August 4, 2025

Herbicide Dicamba Linked to Crop and Plant Damage and Cancer Subject of Deregulation Despite Court Ruling
August 1, 2025

As Millions Die from Antibiotic-Resistant Infections Annually, Study Shines Light on Pesticide Connection
July 11, 2025

Children’s Health Threatened as Rates of Pediatric Cancers are Linked to Agricultural Pesticide Mixtures
March 4, 2025

Biodiversity Threatened by Pesticide Drift, Study Finds; Organic Agriculture Cited as a Holistic Solution
January 3, 2025

Study Links Numerous Chemical Families of Pesticides to Endocrine Disrupting Effects, Including Obesity
December 17, 2024

EPA Proposal for Chlorpyrifos Use, After Court Decision, Backtracks on Safety and Protection of Children
October 10, 2024

Scientists Link Numerous Pesticides to a Range of Cancer Types
August 13, 2024

Call for EPA to Reject Harmful Weed Killer; Politicized Supreme Court Takes the Reins from Agencies
July 1, 2024

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Dicamba

General Information

• Fact Sheet: Dicamba.pdf
• Product Names:

  Scotts LawnPro Step 2 Weed Control Plus Fertilizer 29-3-3 (Scotts Company), formulated with 2,4-D
  Virgoro Ultra Turf Weed & Feed (Spectrum Brands), formulated with 2,4-D, Mecoprop-p
  Spectracide Pro Broadleaf Weed (Spectrum Brands), formulated with 2,4-D, Mecoprop-p
  Scotts Weed and Feed 22-3-3 (Scotts Company), formulated with 2,4-D, Mecoprop-p
  Bonide Brushkil Poison Oak & Ivy Killer (Bonide Products), formulated with 2,4-D

• Chemical Class: Benzoic acid herbicide
• Uses: Agricultural, industrial, and residential settings. Different forms of dicamba (acid and salts) have registered uses on rights-of-way areas, asparagus, barley, corn , grasses grown in pasture and rangeland, oats, proso millet, rye, sorghum, soybeans, sugarcane, and wheat, golf courses 
  and lawns.
• Alternatives: Organic agriculture, Organic lawns care
• Beyond Pesticides rating: Toxic

Health and Environmental Effects

• Cancer: Suggestive (1, 2)
• Endocrine Disruption: Not documented
• Reproductive Effects: Yes (3)
• Neurotoxicity: Yes (3)
• Kidney/Liver Damage: Yes (4)
• Sensitizer/ Irritant: Yes (4)
• Birth/Developmental: Yes (5)
• Detected in Groundwater: Yes (3)
• Potential Leacher: Yes (6)
• Toxic to Birds: Yes (7, 8)
• Toxic to Fish/Aquatic Organisms: Yes (3)
• Toxic to Bees: Not documented

Residential Uses as Found in the ManageSafe™ Database

• Dandelions
• Chickweed

Additional Information

• Regulatory Status:
  • EPA's Dicamba Background and Updates
  • Beyond Pesticides Comments (September 2025)
  • Registration of Dicamba for Use on Dicamba-Tolerant Crops (July 2025)
  • EPA Announces Proposed Decision to Approve Registration for New Uses of Dicamba, Outlines New Measures to Protect Human Health, Environment (July 2025)
  • Beyond Pesticides Comments (July 2024) 
  • Beyond Pesticides Comments (June 2024)
  • Registration of Dicamba for Use on GE Crops
  • Monsanto Petitions for Determinations of Nonregulated Status for Dicamba-Resistant Soybean and Cotton Varieties: Final Environmental Impact Statement (December 2014) 
  • EPA Reregistration Eligibility Decision (RED) signed (6/2006)
• Supporting information:
  • Daily News Blog entries (Beyond Pesticides)
  • Asthma, Children and Pesticides (Beyond Pesticides)
  • NCAP Pesticide Factsheet (Northwest Coalition for Alternatives to Pesticides)
  • PAN Pesticides Database:Dicamba (Pesticide Action Network)
  • NPIC Dicamba Factsheet (National Pesticide Information Center)
• Studies [compiled from the Pesticide-Induced Diseases Database]
  • Dicamba drift affects non-target plants and pollinators (Penn State, 2015)
  • Comparison of pesticide levels in carpet dust and self-reported pest treatment practices in four US sites. Colt, Joanne et. al.2004. Journal of Exposure Analysis and Environmental Epidemiology 14, 74–83.
  • Do Pesticides Affect Learning Behavior? Porter, Warren. 2004. Pesticides and You (Beyond Pesticides).
  • Dicamba use and cancer incidence in the agricultural health study: an updated analysis. Lerro, C.C., Hofmann, J.N., Andreotti, G., Koutros, S., Parks, C.G., Blair, A., Albert, P.S., Lubin, J.H., Sandler, D.P. and Beane Freeman, L.E., 2020. International Journal of Epidemiology.
  • Cancer incidence among pesticide applicators exposed to dicamba in the Agricultural Health Study. Samanic, C., et al. 2006. Environ Health Perspect 114(10):1521-1526.
  • Developmental Toxicity of a Commercial Herbicide Mixture in Mice: I. Effects on Embryo Implantation and Litter Size. Cavieres, M., et al. 2002. Environ Health Perspect 110:1081-1085
  • Amine Volatilization from Herbicide Salts: Implications for Herbicide Formulations and Atmospheric Chemistry. Sharkey, S.M., Hartig, A.M., Dang, A.J., Chatterjee, A., Williams, B.J. and Parker, K.M., 2022. Environmental Science & Technology.
  • Exposure to pesticides and risk of Hodgkin lymphoma in an international consortium of agricultural cohorts (AGRICOH). Kim, J., Leon, M.E., Schinasi, L.H., Baldi, I., Lebailly, P., Freeman, L.E.B., Nordby, K.C., Ferro, G., Monnereau, A., Brouwer, M. and Kjaerheim, K., 2023. Cancer Causes & Control, pp.1-9.
  • Dicamba and 2,4-D in the Urine of Pregnant Women in the Midwest: Comparison of Two Cohorts (2010–2012 vs. 2020–2022). Daggy, J.K. et al. (2024) Dicamba and 2,4-D in the urine of pregnant women in the Midwest: Comparison of two cohorts (2010–2012 vs. 2020–2022), Agrochemicals. Available at: https://www.mdpi.com/2813-3145/3/1/5.
  • Proximity to residential and workplace pesticides application and the risk of progression of Parkinson's diseases in Central California. Li, S. et al. (2022) Proximity to residential and workplace pesticides application and the risk of progression of parkinson’s diseases in Central California, Science of The Total Environment. Available at: https://www.sciencedirect.com/science/article/pii/S0048969722079542.
  • Persistence of triclopyr, dicamba, and picloram in the environment following aerial spraying for control of dense pine invasion. Rolando, C.A. et al. (2023) Persistence of Triclopyr, dicamba, and Picloram in the environment following aerial spraying for control of dense pine invasion, Invasive Plant Science and Management. Available at: https://www.cambridge.org/core/journals/invasive-plant-science-and-management/article/persistence-of-triclopyr-dicamba-and-picloram-in-the-environment-following-aerial-spraying-for-control-of-dense-pine-invasion/EC888894C5B7A927AD5E5A3E0C06CD8D.
  • Impact of Endocrine Disrupting Pesticide Use on Obesity: A Systematic Review. Pérez-Bermejo, M. et al. (2024) Impact of Endocrine Disrupting Pesticide Use on Obesity: A Systematic Review, Biomedicines. Available at: https://www.mdpi.com/2227-9059/12/12/2677.
  • Beyond the field: How pesticide drift endangers biodiversity. Albaseer, S. et al. (2024) Beyond the field: How pesticide drift endangers biodiversity, Environmental Pollution. Available at: https://www.sciencedirect.com/science/article/pii/S0269749124022437.
  • Response of Wine Grape Cultivars to Simulated Drift Rates of 2,4-D, Dicamba, and Glyphosate, and 2,4-D or Dicamba Plus Glyphosate. Mohseni-Moghadam, M. et al. (2017) Response of Wine Grape Cultivars to Simulated Drift Rates of 2,4-D, Dicamba, and Glyphosate, and 2,4-D or Dicamba Plus Glyphosate, Weed Technology. Available at: https://www.cambridge.org/core/journals/weed-technology/article/response-of-wine-grape-cultivars-to-simulated-drift-rates-of-24d-dicamba-and-glyphosate-and-24d-or-dicamba-plus-glyphosate/1BAD9A48DD98F8896E56C6823A2EE4A4.
  • Genotoxicity evaluation of 2,4-D, dicamba and glyphosate alone or in combination with cell reporter assays for DNA damage, oxidative stress and unfolded protein response . Mesnage, R. et al. (2021) ‘Genotoxicity evaluation of 2,4-D, dicamba and glyphosate alone or in combination with cell reporter assays for DNA damage, oxidative stress and unfolded protein response’, Food and Chemical Toxicology, 157, p. 112601. doi:10.1016/j.fct.2021.112601.
  • Toxic and histopathological effects induced by exposure to the pesticide dicamba in carp Cyprinus carpio L. Korkmaz, N. Toxic and histopathological effects induced by exposure to the pesticide dicamba in carp Cyprinus carpio L. Environ Sci Pollut Res 31, 65790–65803 (2024). https://doi.org/10.1007/s11356-024-35674-9
  • Exploring the Joint Association Between Agrichemical Mixtures and Pediatric Cancer. Taiba, J. et al. (2025) Exploring the Joint Association Between Agrichemical Mixtures and Pediatric Cancer, GeoHealth. Available at: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GH001236.
  • Off-target pesticide movement: a review of our current understanding of drift due to inversions and secondary movement. Bish M, Oseland E, Bradley K. Off-target pesticide movement: a review of our current understanding of drift due to inversions and secondary movement. Weed Technology. 2021;35(3):345-356. doi:10.1017/wet.2020.138
  • Investigations of the Sensitivity of Ornamental, Fruit, and Nut Plant Species to Driftable Rates of 2,4-D and Dicamba. Dintelmann, Brian & Warmund, Michele & Bish, Mandy & Bradley, Kevin. (2019). Investigations of the Sensitivity of Ornamental, Fruit, and Nut Plant Species to Driftable Rates of 2,4-D and Dicamba. Weed Technology. 34. 1-35. 10.1017/wet.2019.118.
  • Association between pesticide exposure and colorectal cancer risk and incidence: A systematic review. Matich, E. K., Laryea, J. A., Seely, K. A., Stahr, S., Su, L. J., & Hsu, P. C. (2021). Association between pesticide exposure and colorectal cancer risk and incidence: A systematic review. Ecotoxicology and environmental safety, 219, 112327. https://doi.org/10.1016/j.ecoenv.2021.112327