Atrazine is an herbicide widely used for control of broadleaf and grassy weeds. It is sprayed on row crops such as corn, sorghum and sugarcane, and in some areas is used on residential lawns. It has also been used on highway and railroad rights-of-way. EPA now restricts how atrazine can be used and applied.
Where is atrazine commonly used?
Atrazine is a member of the triazine chemical class, which includes simazine and propazine. It is used in primarily in agriculture, with the greatest use on corn, sorghum, and sugarcane. To a lesser extent, it is used on residential lawns and golf courses, particularly in the Southeast United States.
What does atrazine bind to in plants?
Atrazine inhibits photosynthesis by competitively associating with the plastoquinone B (QB) binding site of the D1 subunit of PSII, and therefore blocks chloroplast electron flow from plastoquinone A to QB, greatly reducing the production of ATP, nicotinamide adenine dinucleotide phosphate (NADPH), and CO2 fixation ( …
Why do we use atrazine?
Atrazine is a herbicide of the triazine class. It is used to prevent pre-emergence broadleaf weeds in crops such as maize (corn) and sugarcane and on turf, such as golf courses and residential lawns.When did the EPA start looking into the negative effects of atrazine?
Dr. Hayes published the first report on his scientific research in 2002. In 2003, EPA began to collect all scientific studies that examined the potential effects of atrazine on various species of frogs, including all of the studies published by Dr. Hayes.
How is atrazine applied?
Atrazine can be applied to the soil surface either before or after planting, incorporated into the soil prior to planting, or sprayed on corn and weeds, postemergence.
Where can atrazine be found in the environment?
Atrazine has also been found in streams, rivers, and lakes near fields where it has been applied. Higher amounts have been found in these waterways in the spring and summer months. Therefore, you may wish not to swim in, nor drink from, these bodies of water.
What is atrazine 4L used for?
ATRAZINE 4L Herbicide will control most annual Broadleaf and Grass weeds in Corn, Sorghum, Sugarcane and certain other crops as specified on this label. This product may be applied before or after weeds emerge.What crops are sprayed with atrazine?
Atrazine is an herbicide widely used for control of broadleaf and grassy weeds. It is sprayed on row crops such as corn, sorghum and sugarcane, and in some areas is used on residential lawns. It has also been used on highway and railroad rights-of-way. EPA now restricts how atrazine can be used and applied.
What does atrazine do to men?Atrazine-exposed males suffered from depressed testosterone, decreased breeding gland size, demasculinized/feminized laryngeal development, suppressed mating behavior, reduced spermatogenesis, and decreased fertility.
Article first time published onIs atrazine safe around trees?
Answer: Hi-Yield Atrazine Weed Killer could damage or kill trees and shrubs, including all the ones listed. It should not be used over rooting area of trees, ornamentals, vegetables or other desirable plants other than indicated established turfgrasses.
Which countries have banned atrazine?
Seven EU countries in the European Union (“EU”) have banned atrazine: France, Sweden, Denmark, Finland, Germany, Austria and Italy. These countries have a policy of banning pesticides that occur in drinking water at levels higher than 0.1 parts per billion.
Where is atrazine banned?
WASHINGTON— The Environmental Protection Agency has announced that the endocrine-disrupting pesticide atrazine will be banned in Hawaii and in the U.S. territories of Puerto Rico, Guam, American Samoa, the U.S. Virgin Islands and the North Mariana Islands.
Is atrazine used on organic crops?
Organic growers don’t use fumigants such as Dichloropropene (the sixth most commonly used pesticide nationally), a probable carcinogen. Nor, as a rule, do organic growers rely on Glyphosate (most common brand: Roundup) or Atrazine, both of which are endocrine disruptors linked to birth defects14.
Is atrazine used today?
Atrazine is one of the most commonly used herbicides in the US. Farmers spray it on crops such as corn, sorghum, and sugarcane to control grasses and broadleaf weeds. Consumers apply it to residential lawns to kill weeds. Atrazine persists in the environment and is a widespread drinking water contaminant.
What organism was Dr Hayes studying that is negatively affected by atrazine?
“Atrazine is obviously affecting frogs,” Hayes said.
What products have atrazine?
Product NameProduct NameProduct NameATRAZINE 90 WDGFULTIMESTALWART XTRAATRAZINE DF (ADAMA)FULTIME NXTSTALWART XTRA LITEBICEP II MAGNUMHARNESS XTRATENKOZ ATRAZINE 4LBICEP II MAGNUM FCHARNESS XTRA 5.6LTENKOZ ATRAZINE 90DF
How is atrazine harmful to the environment?
A growing body of research shows that atrazine exposure–even to trace levels of the herbicide–can adversely impact a number of species. … Atrazine exposure from contaminated surface water is also known to compromise fish and amphibian growth, behavior, immune function, and gonadal development.
What does atrazine do to animals?
Atrazine tends to increase the conversion of testosterone to estrogen, Pask says, which can push an animal’s hormonal profile toward developing female traits.
How much atrazine do I use on an acre of corn?
*Atrazine applications for corn are restricted to a maximum of 2.5 pounds active ingredient per acre (lb. ai/A) per calendar year. In addition, there is a per-application maximum of no more than 1.6 or 2 lb. ai/A depending on soil erodibility (as defined by NRCS) and the amount of crop residue cover.
How do you make atrazine solution?
Atrazine standard was supplied by Sigma Aldrich (USA). A stock solution of 30 mg/L Atrazine analytical grade was prepared by dissolving 3 mg solid standard of Atrazine (99.9% purity) in 100 mL methanol. Working solutions were prepared by diluting appropriate volume of the stock solution in methanol.
What weeds are controlled by atrazine?
Cocklebur, jimsonweed, ground cherry, lambsquarters, morningglory, mustards, ragweed, pigweed, velvetleaf, purslane, nightshade, Spanish needle, broomweed, clovers, chickweed and kochia are common broadleaf weeds for which atrazine is rated to kill or control.
Why is atrazine banned?
Atrazine is a common agricultural herbicide with endocrine disruptor activity. … Although the U.S. Environmental Protection Agency (EPA) approved its continued use in October 2003, that same month the European Union (EU) announced a ban of atrazine because of ubiquitous and unpreventable water contamination.
How long does atrazine last in soil?
Atrazine does not bind well to soil and can easily move in it. It has an average half-life in soil of around 60-75 days.
Can atrazine be used on sweet corn?
“Atrazine is the single most widely used herbicide in sweet corn, applied to fields before crop emergence, after crop emergence, or at both times,” Williams said. “Manufacturers of many of the other herbicides recommend tank-mixing with atrazine to increase their products’ effectiveness.”
Who manufactures atrazine?
The Syngenta corporation invented the herbicide atrazine and is its primary manufacturer. The corporation is certainly one of atrazine’s most ardent defenders and promoters.
How much atrazine is in a gallon of water?
Answer: According to the product label: You should mix 4.3 fl ozs of Hi Yield Atrazine per gallon of water for each 500 sq ft area.
Does Australia use atrazine?
In Australia, atrazine is used to control weeds in summer crops such as sorghum, maize and sugarcane, and it is also widely used in Western Australia to control weeds in lupins. Other uses include control of weeds in lucerne, grass seed, pasture and potatoes.
Can frogs change gender?
Frogs can change their sex even in pristine, pollution free settings. Past research suggested that male-to-female sex changes happening in frogs in suburban ponds may be caused by increased levels of estrogen released into the water. … As far as they know, frogs can only change sex during their tadpole phase.
When should I apply atrazine?
Hi-Yield Atrazine Weed Killer can be applied early in the morning before temperatures reach 90 degrees if it’s expected to get this hot on the day of application. You just do not want to apply during the time of high temperature because your desirable turfgrass is under more stress in high heat.
Is atrazine banned in California?
The reversal on atrazine is the Trump Administration’s third about-face on a toxic pesticide. … The EPA’s own assessment concluded that the levels of chlorpyrifos currently found on food and in drinking water are unsafe and Hawaii and California have already banned the pesticide outright.
