Can you mix atrazine and 24d? Atrazine alone will not be nearly as effective postemergence on marestail as the combination of atrazine plus 2,4-D. An additional tankmix partner very good on marestail is Sharpen, which can be tankmixed with 2,4-D, atrazine, or glyphosate. Tank mixing 2,4-D with atrazine enhances control of all broadleaf species. Does Roundup contain atrazine? Monsanto marketed its potent weed killer glyphosate—the active ingredient in Roundup—and the corn and soybeans genetically engineered to withstand it, by claiming it would replace other, more toxic weed killers such as atrazine.
Glyphosate has become the most popular agricultural herbicide in the U. Why is atrazine banned in Europe? Although the U. Environmental Protection Agency EPA approved its continued use in October , that same month the European Union EU announced a ban of atrazine because of ubiquitous and unpreventable water contamination.
Is atrazine still used? Atrazine is one of the most commonly used herbicides in the United States: Approximately 80 million pounds of it are used across the country each year. It's a common contaminant of ground, surface and drinking water. It's so dangerous to both people and wildlife that it has been banned by the European Union. Is atrazine in bottled water? Is bottled water safe from atrazine? Almost half of all bottled water comes from filtered tap water and depending on the filtering this might not be free of atrazine and other herbicides.
Spring water could also be contaminated depending on the source. What does atrazine do to frogs? A restricted herbicide, atrazine is used primarily on crops, not around the home, and can be purchased and applied only by certified applicators. Atrazine is the most widely used herbicide in Texas corn and grain sorghum production. With its widespread use, atrazine has been discovered in minute quantities in Texas ground and surface waters. Because of this, it is important to understand atrazine behavior in the environment and the potential for adverse effects on human and animal health and on other non-target organisms.
Atrazine kills plants by disrupting photosynthesis. Photosynthesis— unique to green, living plants—happens when light energy is converted to chemical energy needed for food production. Simply put, when food production stops, plants eventually starve to death. Atrazine selectively kills non-desirable plants weeds that compete for water and nutrients with desirable plants crops, turf- grass. Therefore, it is a useful tool for both agricultural and urban sites. Atrazine is generally applied to soil or turfgrass surfaces in a uniform, broadcast manner to ensure adequate distribution over the area in which weed control is desired.
Rainfall or irrigation shortly after application transports atrazine into the upper soil profile where plant seedlings germinate. These seedlings take up the herbicide through the roots and, depending on their tolerance, they may or may not survive. If rainfall or irrigation water accumulates at the soil surface faster than it can percolate into the upper soil profile, this standing water might run off the site of application, carrying some of the atrazine.
Since atrazine is moderately water soluble, it will be present in the surface runoff water as well as in the soil water percolating downward. Atrazine is needed in the upper soil profile for weed control. Its movement downward through the soil, or leaching, is limited by its ability to attach itself to soil particles.
Soils high in clay and organic matter content are less likely to let atrazine move downward than sandy soils. Atrazine will generally stay in the upper 1 to 6 inches of the soil profile on most agricultural soils. The presence of atrazine in surface water runoff is of greatest concern. That's the most recent reporting year on file at the Lincoln office of the National Agricultural Statistics Service. During this same time period, genetically modified organism GMO crops have taken over across the American Midwest.
Nebraska and South Dakota were the two highest percentage states at 97 percent each. Genetically modified corn was planted in 80 percent of the fields in the U. Again, sophisticated farmers in the Midwest led the way. The other pressure against atrazine is that scientific studies are suggesting that the chemical may be dangerous to humans and other species, especially in the area of reproductive health.
In , there were six studies that showed that frogs exposed to atrazine from nearby farm fields were developing sexual abnormalities. Some species developed multiple testes and multiple ovaries. Males in other studies became hermaphrodites. The Environmental Protection Agency during the Bush administration took note of the studies, weighed them against other studies and declared the herbicide safe for use.
But it did require the manufacturer, the Swiss company Syngenta, to monitor water wells in several areas of the country.
0コメント