In the first chapter of The Origin of Species, Charles Darwin detailed his examinations of the skeletons of a variety of different breeds of domestic pigeons. To agreement today, he concluded that they all descended, by selective ...
Honey yields in the U.S. have been declining since the 1990s, with honey producers and scientists unsure why, but a new study by Penn State researchers has uncovered clues in the mystery of the missing honey.
Ecology
Jan 4, 2024
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It has been a quarter century since corn and soybeans were engineered to withstand the withering mists of the herbicide glyphosate. Initially heralded as a "silver bullet" for weed control, the modified crops and their herbicide ...
Evolution
Dec 5, 2023
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549
Weeds have always been a significant problem for agriculture. They compete with crops for resources such as light, water and nutrients, which can result in severe yield losses.
Molecular & Computational biology
Aug 18, 2023
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1
Weed killers of the future could soon be based on failed antibiotics.
Molecular & Computational biology
May 24, 2023
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126
Blackgrass has become the most economically damaging herbicide-resistant weed in Europe. A team led by researchers of the Max Planck Institute for Biology Tübingen and the University of Hohenheim in Stuttgart has now found ...
Molecular & Computational biology
Apr 13, 2023
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38
"Dicamba drift"—the movement of the herbicide dicamba off crops through the atmosphere—can result in unintentional damage to neighboring plants. To prevent dicamba drift, other chemicals, typically amines, are mixed with ...
Environment
Oct 27, 2022
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335
Finnish researchers found out how Roundup, a herbicide containing glyphosate, affects the learning and memory of bumblebees. Already a small dose affected their ability to learn and memorize connections between colors and ...
Plants & Animals
Oct 13, 2022
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262
Curtin University researchers have discovered a promising new herbicide target site in plants with the potential to provide new solutions for growers dealing with the increasing problem of herbicide resistance.
Molecular & Computational biology
Sep 27, 2022
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65
In a paper published in the journal Communications Biology, scientists from Washington University in St. Louis and the University of Arkansas report that a crop pest called weedy rice has become widely herbicide resistant ...
Evolution
Sep 8, 2022
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162
Herbicides, also commonly known as weedkillers, are pesticides used to kill unwanted plants. Selective herbicides kill specific targets while leaving the desired crop relatively unharmed. Some of these act by interfering with the growth of the weed and are often synthetic "imitations" of plant hormones. Herbicides used to clear waste ground, industrial sites, railways and railway embankments are non-selective and kill all plant material with which they come into contact. Smaller quantities are used in forestry, pasture systems, and management of areas set aside as wildlife habitat.
Some plants produce natural herbicides, such as the genus Juglans (walnuts), or the tree of heaven; such action of natural herbicides, and other related chemical interactions, is called allelopathy.
Herbicides are widely used in agriculture and in landscape turf management. In the U.S., they account for about 70% of all agricultural pesticide use.
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