#simazine
Atrazine is a widely used chlorinated triazine systemic herbicide applied to control pre-emergence and post-emergence broadleaf and annual grass weeds in crops like corn, sorghum, and sugarcane, as well as in turf management.
www.epa.gov/ingredients-...
Atrazine | US EPA
Atrazine is a widely used herbicide that can be applied before and after planting to control broadleaf and grassy weeds. Atrazine is part of the triazine chemical class which includes simazine and pro...
www.epa.gov
October 9, 2026 at 6:33 PM
British health insurer Bupa has lavish plans to regenerate a 250-hectare farm in regional Australia.

But it has upset locals after spraying 200 hectares with glyphosate and simazine to kill off weeds before the planting begins.

au.news.yahoo.com/uproar-in-re...
Uproar in regional Australia after British company turns 250-hectare property yellow
Members of a small community say they can see changes occurring but don't know who to contact.
au.news.yahoo.com
August 19, 2026 at 12:15 AM
Here are a few pesticides used in the U.S. which are banned in the E.U. due to health and environmental concerns, including paraquat, acephate, simazine, imidacloprid, clothianidin, and thiamethoxam.
November 25, 2025 at 12:43 AM
Turns out there are a LOT of pesticides that might have been sprayed on your natural tree. “eight pesticides make up 85% of all uses on Christmas trees: chlorothalonil, atrazine, simazine, glyphosate, hexazinone, carbaryl, chlorpyrifos, & dimethoate.” www.beyondpesticides.org/programs/cen....
Christmas Trees and Pesticides
For consumers, the holiday season is full of complicated choices, including the conundrum of how to find the perfect...
www.beyondpesticides.org
January 11, 2025 at 5:46 AM
The endocrine disrupting herbicide propazine is set for cancellation by the EPA. The move would eliminate use of the herbicide by the end of 2022. However, all pesticides in the triazine class have similar properties and should be eliminated from use.

beyondpesticides.org/dailynewsblog/…
Take Action: Tell EPA to Ban ALL Triazine Herbicides - Beyond Pesticides Daily News Blog
(Beyond Pesticides, June 28, 2021) The endocrine disrupting herbicide propazine (in the triazine family of frog-deforming endocrine disruptors) is set for cancellation by the U.S. Environmental Protection Agency (EPA). The move would eliminate use of the hazardous herbicide by the end of 2022. However, all pesticides in the triazine class, including atrazine and simazine, have similar properties and should be eliminated from use. Tell EPA to finish the job by banning all triazines. In November 2020, Beyond Pesticides and allied environmental groups launched a lawsuit against EPA for its intent to reregister the triazine family of chemicals. The agency’s interim approval of the herbicides, conducted under the Trump administration, eliminates important safeguards for children’s health and a monitoring programs intended to protect groundwater from contamination. As is typical with EPA, the agency merely proposed minor label changes in attempts to mitigate risks identified in its registration review. According to a release from EPA, it made the decision not out of concerns relating to human health and environmental protection, but in order to provide “regulatory certainty” for farmers and local officials. In March 2021, the Biden administration requested a stay on the atrazine lawsuit brought by environmental groups, as it indicated […]
beyondpesticides.org
February 26, 2025 at 2:10 AM
Herbicide #propazine is in the triazine family of frog-deforming #EndocrineDisruptors. While health & environmental advocates are pleased w/EPA’s move, it's critical all triazine class #pesticides, incl. #atrazine & #simazine, also be eliminated.

beyondpesticides.org/dailynewsblog/…
Propazine Cancelled by EPA—Advocates Urge Agency to Finish the Job by Banning Atrazine and Simazine - Beyond Pesticides Daily News Blog
(Beyond Pesticides, June 15, 2021) The endocrine disrupting herbicide propazine (in the triazine family of frog-deforming endocrine disruptors) is set for cancellation by the U.S. Environmental Protection Agency (EPA), according to a Federal Register notice published last week. The move would eliminate use of the hazardous herbicide by the end of 2022. While health and environmental advocates are pleased with the agency’s move, they say it is critical that all pesticides in the triazine class, including atrazine and simazine, also be eliminated from use. In November 2020, Beyond Pesticides and allied environmental groups launched a lawsuit against EPA for its intent to reregister the triazine family of chemicals. The agency’s interim approval of the herbicides, conducted under the Trump administration, eliminates important safeguards for children’s health and a monitoring programs intended to protect groundwater from contamination. As is typical with EPA, the agency merely proposed minor label changes in attempts to avert risks identified in its registration review. According to a release from EPA, it made the decision not out of concerns relating to human health and environmental protection, but in order to provide “regulatory certainty” for farmers and local officials. In March 2021, the Biden administration requested a stay […]
beyondpesticides.org
February 26, 2025 at 2:09 AM
Many countries, including the EU, have banned #atrazine & eliminated use without damage to the farming economy. “Use of this extremely dangerous #pesticide should be banned, not expanded,” Nathan Donley, PhD, a @CenterForBioDiv senior scientist said.

beyondpesticides.org/dailynewsblog/…
EPA Reapproves Toxic Weedkiller Atrazine with Fewer Protections for Children's Health - Beyond Pesticides Daily News Blog
(Beyond Pesticides, September 22, 2020) Use of the highly hazardous, endocrine disrupting weed killer atrazine is likely to expand following a decision made earlier this month by the U.S. Environmental Protection Agency (EPA). Under the guise of “regulatory certainty,” the agency is reapproving use of this notorious herbicide, as well as its cousins simazine and propazine in the triazine family of chemicals, with fewer safeguards for public health, particularly young children. Advocates are incensed by the decision and vow to continue to put pressure on the agency. “Use of this extremely dangerous pesticide should be banned, not expanded,” Nathan Donley, PhD, a senior scientist at the Center for Biological Diversity said in a press release. “This disgusting decision directly endangers the health of millions of Americans.” Beyond Pesticides has long argued against the continued use of the triazine herbicides, which includes atrazine. Triazines are well known to interfere with the body’s endocrine, or hormonal system. Disruptions within this delicately balanced process in the body can result in a range of ill health effects, including cancer, reproductive dysfunction, and developmental harm. These weedkillers interfere with the pituitary gland’s release of luteinizing hormones, which regulate the function of female ovaries and male gonads. In comments written by Beyond Pesticides to EPA, the organization notes, “Of the numerous adverse effects associated with this disruption, […]
beyondpesticides.org
February 26, 2025 at 1:37 AM
Atrazine, the second most-used herbicide in the U.S., is an insidious poison. #Atrazine is known for producing frogs with extra limbs. Act today, March 2! Sign the petition demanding that EPA ban atrazine and its cousins simazine and propazine.

secure.everyaction.com/4dyX3KFQQkaWNf…
Tell EPA to Ban Atrazine
Protect Children and Frogs from this Endocrine Disrupting Pesticide
secure.everyaction.com
February 26, 2025 at 1:13 AM
Last week, the US District Court in San Francisco ruled that the Environmental Protection Agency (EPA) must assess the risk eight toxic pesticides pose to protected organisms.

beyondpesticides.org/dailynewsblog/…
Environmental Groups Are Victorious in Lawsuit that Pushes EPA to Protect Endangered Species - Beyond Pesticides Daily News Blog
(Beyond Pesticides, October 31, 2019) Last week the U.S. District Court in San Francisco ruled that the Environmental Protection Agency (EPA) must assess the risk eight toxic pesticides pose to protected organisms: atrazine, carbaryl, methomyl, and simazine as well as rodenticides brodifacoum, bromadiolone, warfarin and zinc phosphide. The plaintiffs, Center for Biological Diversity (CBD) and Pesticide Action Network North America (PANNA) asserted that EPA and its then administrator Scott Pruitt violated duties under the Endangered Species Act (ESA) by not consulting with the Fish and Wildlife Service and National Marine Fisheries Service in registering these pesticides. The history of this case extends over 8 years. Last year, the court rejected EPA’s attempts to dismiss the lawsuit. According to CBD’s press release, “Under the agreement the agency must complete assessments of four pesticides, including atrazine, the nation’s second most-used pesticide, by 2021. Assessments of four rodenticides, including the widely used rat poison brodifacoum, must be finalized in 2024.” Stephanie Parent, an attorney at the Center for Biological Diversity, said “This important step is only the start. We still have work to do to make sure the EPA addresses the harms of all pesticides, as the law requires. EPA was created after […]
beyondpesticides.org
February 26, 2025 at 1:01 AM
#California to List #Atrazine and Other #Triazine #Weedkillers to Prop 65 as Reproductive #Toxicants

bit.ly/29ISm9R
California to List Atrazine and Other Triazine Weedkillers to Prop 65 as Reproductive Toxicants - Beyond Pesticides Daily News Blog
(Beyond Pesticides, July 13, 2016) California’s Office of Environmental Health Hazard Assessment (OEHHA) has announced that atrazine, its chemical cousins,  propazine,  simazine,  and its break down triazine compounds des-ethyl atrazine (DEA),  des-isopropyl atrazine (DIA)  and  2,4-diamino-6-chloro-s-triazine (DACT)  would be added to the list of chemicals known to the state to cause reproductive toxicity for purposes of the state’s Proposition 65. The formal listing has been delayed and will not be effective until July 15, 2016 due to litigation from the manufacturer, Syngenta, which opposes the listing. In 2014 the state announced its Notice of Intent to list the triazines: atrazine, propazine, simazine and their breakdown products under Proposition 65 — the state’s law on toxic chemicals. The listing of these chemicals was initially to be effective on August 3, 2015. However, Syngenta, manufacturer of atrazine, challenged the listing decision, leading to a delay in the formal decision. Syngenta Crop Protection v OEHHA  (Sacramento Superior Court case#34-2014-800001868). Syngenta’s challenge was unsuccessful and now the official listing can move forward, in spite of Syngenta’s pending appeal. The six chemicals will now be known as reproductive toxicants in the state of California effective July 15, 2016. See listing notice. http://oehha.ca.gov/media/downloads/crnr/listingnoticetriazines070516.pdf Proposition 65, officially […]
bit.ly
February 25, 2025 at 11:03 PM
Atrazine and Glyphosate to be Analyzed by #EPA for Impacts on 1,500 Endangered Species#Endangered #Pesticides

bit.ly/1GK5X9d
Atrazine and Glyphosate To Be Analyzed by EPA for Impacts on 1,500 Endangered Species - Beyond Pesticides Daily News Blog
(Beyond Pesticides, June 25, 2015) The U.S Environmental Protection Agency (EPA) announced Tuesday that it will analyze the effects of two of the most commonly used pesticides in the United States, glyphosate and atrazine, along with atrazine chemical-cousins propazine and simazine, for their impacts on 1,500 endangered plants and animals. The announcement marks an agreement between EPA and Center for Biological Diversity (CBD) on a proposed settlement amending a 2010 court order that  established a schedule to complete effects determinations for 75 chemicals on 11 species in the San Francisco (SF) Bay Area. According to EPA, 59 of the 75 pesticides have been evaluated and subject to  effects determinations, however for the remaining 16 pesticides, EPA and CBD agreed that it would be more efficient and environmentally significant to complete nationwide effects determinations, rather than limit their focus to the SF bay area listed species. The agency has committed to completing the assessments by June 2020. The initial lawsuit was filed by CBD in May 2007 against EPA for violating the Endangered Species Act by registering and allowing the use of scores of toxic pesticides in habitats for 11 San Francisco Bay Area endangered species without determining whether the chemicals […]
t.co
February 25, 2025 at 10:21 PM
Levels of #Pesticides Still a Concern for Aquatic Life in U.S. Rivers and Streams

bit.ly/WSMpNd
Levels of Pesticides Still a Concern for Aquatic Life in U.S. Rivers and Streams - Beyond Pesticides Daily News Blog
(Beyond Pesticides, September 12, 2014) A new U.S. Geological Survey (USGS) report finds that levels of pesticides continue to be a concern for aquatic life in many of the Nation’s rivers and streams in agricultural and urban areas. The study, which documents pesticide levels in U.S. waterways for two decades (1992-2011), finds pesticides and their breakdown products in U.S. streams more than 90 percent of the time. Known pesticide water contaminants, such as atrazine, metolachlor, and simazine, continue to be detected in streams more than 50 percent of the time, with fipronil being the pesticide most frequently found at levels of potential concern for aquatic organisms in urban streams. According to the USGS report, “An Overview Comparing Results from Two Decades of Monitoring for Pesticides in the Nation’s Streams and Rivers, 1992—2001 and 2002—2011,” featured in the journal, Environmental Science and Technology and part of the agency’s ongoing National Water-Quality Assessment Program, the proportion of streams with one or more pesticides that exceed an aquatic-life benchmark (or guideline) is similar between the two decades for streams and rivers draining agricultural and mixed-land use areas, but much greater during the 2002-2011 for streams draining urban areas. During both decades, one or […]
t.co
February 25, 2025 at 9:33 PM
"..most commonly detected pesticides in stream water were Simazine, in 93%.. Atrazine.. and Clothianidin.. .the chemicals are almost always present in the stream’s water during the growing season, researchers said."
www.morningagclips.com/some-pestici... #pesticides #riversandstreams #aquaticspecies
Some Pesticides Can Slip Under Natural Protection Into Streams, Researchers Find
Explore the impact of pesticides in streams and how riparian buffers can mitigate their effects on aquatic ecosystems.
www.morningagclips.com
February 25, 2026 at 9:07 PM
EPA just nearly tripled what it claims are safe levels of atrazine, which is so dangerous it's banned in 44 countries. EPA is bending over backward to accommodate growers who are drenching food, fuel & fiber with atrazine at the expense of public health & the environment. www.epa.gov/ingredients-...
Atrazine | US EPA
Atrazine is a widely used herbicide that can be applied before and after planting to control broadleaf and grassy weeds. Atrazine is part of the triazine chemical class which includes simazine and pro...
www.epa.gov
December 3, 2024 at 7:58 PM
Many of these pesticides include products known to be potent endocrine disruptors, carcinogens and neurotoxins that impede children’s brain development. The pesticides are chlorothalonil, simazine, glyphosate, hexazinone, carbaryl, chlorpyrifos and dimethoate.
December 5, 2025 at 7:01 PM
Le DDT était autorisé partout avant qu'un premier pays l'interdise.
L'amiante également.
Le Lindane également.
Le 2,4-D aussi.
L'Atrazine et la Simazine aussi.
Et le Chlordécone aussi était autorisé avant d'être interdit.
C'est le principe, d'être autorisé avant d'être interdit.
July 28, 2025 at 6:55 AM
RRIDs were included in this in International Journal of Molecular Sciences paper. Thanks for making your methods matter! #ReproducibleResearch #reproducibility #RRID
Salidroside Protects Against Simazine-Induced Neurotoxicity by Activating PINK1/Parkin Mitophagy
Read the full paper: Salidroside Protects Against Simazine-Induced Neurotoxicity by Activating PINK1/Parkin Mitophagy
doi.org
May 30, 2026 at 7:01 AM
Don't forget, legumes are all herbicide-dessicated; unless organic & it's water-soluable?

grdc.com.au/resources-an...
Weed management in chickpeas
1. There are a number of key broadleaf weeds that are not effectively managed by common residual herbicide programs of isoxaflutole (e.g. Balance) in mixture with simazine or terbuthylazine (e.g. Terb...
grdc.com.au
February 15, 2025 at 5:24 PM
Les rivières de France débordent de pesticides interdits #simazine #atrazine #terbuthylazine

ht.ly/8iQCr
November 24, 2024 at 2:51 AM
'Atrazine, simazine, tebuthiuron and metolachlor are no longer approved for use in the European Union and have been classified by the European Chemicals Agency as being “very toxic to aquatic life with long lasting effects”, but they are still approved for use in Australia.'
November 24, 2024 at 4:26 AM
'The testing for the chief scientist was conducted by Charles Sturt University. It detected several #herbicides including atrazine, simazine, terbuthylazine, tebuthiuron, metolachlor, clopyralid and fluroxypyr'

#DarlingBaakaRiver
November 24, 2024 at 4:20 AM