Sentences with word «dicamba»

The image shows a damaged E. perfoliatum plant that received a rate of 56 grams of dicamba per hectare.s
Drift from dicamba herbicide damaged chestnut trees grown by an Iowa farmer last fall.
The EPA last year approved use of Monsanto's new version of a weed killer using a chemical known as dicamba on crops during the summer growing season.
Arkansas farmer David Wildy inspects a field of soybeans that were damaged by dicamba.
The scientists found that application of dicamba inhibited or delayed flowering in common boneset (Eupatorium perfoliatum), resulting in significantly reduced visitation by insect species, including honeybees (pollinators) and syrphid flies (natural enemies).
«Because of the challenge of glyphosate - resistant weeds, new types of transgenic crops that are resistant to synthetic - auxin herbicides including dicamba and 2,4 - D will be widely planted in coming growing seasons, raising concerns about damage from these drift - prone herbicides,» said John Tooker, associate professor of entomology, Penn State.
«The expected high rate of adoption of the new transgenic crops will increase dicamba and 2,4 - D use by four to eight times.
Scientists are concerned that monarch butterflies could be facing a new threat: pesticides that contain dicamba.
A report released last week from the Center for Biological Diversity showed that monarch butterflies migrate through areas of the southern and Midwestern United States where dicamba is heavily used.
The wild battle in Arkansas over dicamba, the controversial and drift - prone herbicide, just got even crazier.
The team currently is working to determine the proportion of non-crop habitat in the corn / soybean belt that could be degraded for pollinator communities by drift of dicamba and / or 2,4 - D.
Monsanto, which is being acquired by Bayer AG (bayer - ag) for $ 63.5 billion, has said its dicamba herbicide is safe when applied properly and that U.S. farmers failed to follow label instructions.
The mix consisted of three chemicals common to many commercially available herbicides: 2,4 - D, mecoprop, and dicamba.
«And the quality of these fragments may be substantially degraded by repeat exposure of dicamba or 2,4 - D drift.»
«We found that both plant species are susceptible to very low rates of dicamba — just 0.1 to 1 percent of the expected field application rate can negatively influence flowering,» said Tooker.
The researchers applied a range of sub-lethal doses of dicamba to the plants, then tracked flowering and floral visitation by insect species.
Agronomist Karen Corrigan: Companies, farmers, and weed scientists should focus more on solutions to dicamba drift issues and less on...
The results are dramatic: three pesticides estimated to account for half of lawn care product applications dropped by 86 % (2,4 - D), 82 % (dicamba), and 78 % (MCPP: 2 - methyl -4-chlorophenoxyacetic acid).
According to University of Missouri data, approximately 4 % of the 90 million acres of soybeans planted this year have shown signs of damage linked to dicamba.
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