Tag: "pesticides" at biology news
Native American artifacts pose pesticide exposure risk
...s technology evolved, curators began using organic pesticides
like DDT. Over the years, some pieces may have bee... the objects may be contaminated with a variety of pesticides
used in the museum over the years. A curator at the Hoopa Tribal Museum arranged for chemical analys...
Study of insecticide neurotoxicity yields clues to onset of Parkinson's Disease
...e. The slow response to high levels of exposure to pesticides
is caused, Bloomquist thinks, by the system being overloaded and only after a period of a few weeks is it capable of responding to the insult in the same way as low doses. In some individuals, dopamine-producing neurons may be challenged by genetic f...
Termites repelled by catnip oil
...p oil as a possible replacement for the more toxic pesticides
presently used to control termites. Probably the most common termite control method is treating the soil next to wood structures with chemical compounds: some of the active ingredients of traditional termiticides, such as chlordane and chlorpyrifos, ...
Catnip stops termites dead in their tracks
... the oil might provide a less toxic alternative to pesticides
used today. Termites cause damages estimated at more than $1 billion annually in the United States. In New Orleans, the aggressive Formosan subterranean termite now found in at least 11 states is believed to infest about 30 percent of the area's li...
Fruit consumption related to increased risk of Parkinson's?
...s increased risk may be due to plant borne toxins, pesticides
or herbicides, rather than the fruit itself," notes study author Andrew Grandinetti, PhD, of the Pacific Biomedical Research Center, University of Hawaii and Manoa. "High fruit intake is still an important protective factor against many chronic disea...
Genetic risk factor for Parkinson disease discovered
...om excess oxygen damage, combined with exposure to pesticides
such as rotenone, could act synergistically to cause Parkinson's disease. This is the first study to give substance to the idea." Additional studies will be needed to further examine the link between variant J and Parkinson's disease, said Vance. Giv...
Arsenic in New England wells more widespread than thought
... the region. Manufacturing and many years of using pesticides
and treated lumber may have also contributed to increased arsenic levels, but the extent of their contribution is unclear, Ayotte says. While the study provides a clearer picture of arsenic distributions in the region, it has several caveats. Althou...
Critical early-defense trigger in plants found
...ase resistance in crop plants without resorting to pesticides
or the introduction of non-plant genes. The resea... on the use of chemical-based fungicides and other pesticides
to protect crops against microbial pathogens and insects," says Klessig. "An alternative strategy to...
ACS announces awards for environmentally conscious business innovation
.... The nontoxic product is replacing some synthetic pesticides
that have been shown to be harmful to the environment and people. Studies show other fungicides are toxic to frogs and earthworms and, when they leach into the ocean, to shrimp and other forms of life. Since Serenade® consists of natural products...
US bald eagle counts continue to climb slowly
...72," Steenhof explained. "Declines associated with pesticides
during the 1950s may have been more severe in the Northeast than in other parts of the country and may be the reason counts are increasing more there than elsewhere in the country." About two-thirds of the eagles observed on surveys were mature adult...
Down on the farm
...erns about the environmental and economic costs of pesticides
and the increased interest in the potential ecosystem services that weed diversity within row crops may provide, Gross will share the results of 15 year's worth of study on the impacts of various agricultural management strategies. Gross' presentati...
Search beneath lawns provides insight into backyard biodiversity
...mowed, but with no applications of fertilizers and pesticides
and high-maintenance lawns mowed and treated with applications of fertilizers and pesticides
from a lawn care company. For comparison to the lawns, he sampled arthropods form unmowed fields in...
Fe-TAML(R) activators developed at Carnegie Mellon break down toxic pesticides
...rus compounds, a widely used class of agricultural pesticides
associated with profound toxicity. The results of...ds after a crop harvest to reduce the entry of the pesticides
into the groundwater, as well as nearby streams and estuaries. Once they are commercially available,...
New study begins to unravel fate of toxic pollutants harbored in Arctic waters
New York An analysis of pesticides
that accumulate in Arctic waterways is giving scie...he and her colleagues analyzed the behavior of two pesticides
lindane and hexachlorobenzene (HCB). Both are prominent in Arctic waters, and both are part of a gr...
Saliva spits out information on chemical exposure
...s or even acts of war and terrorism. "The class of pesticides
we are studying, organophosphates, are chemically ...s Timchalk, a Battelle toxicologist at PNNL. "Both pesticides
and nerve gases inhibit an enzyme called acetylcholinesterase. Without acetylcholinesterase, nerves,...
Agronomy, Crop, and Soil Science Societies to meet Nov. 2-6 in Denver
...economy Lawncare/turfgrass, including irrigation, pesticides
Conservation, including water quality Technology and agriculture, including GIS, GPS, remote sensing Science Education how schools promote science in the classroom For a searchable listing of the 2,500+ papers, click on the "What's Happening" li...
Golfing toward a greener environment
... unintentional side effects of the fertilizers and pesticides
applied to the golf-course greens to keep them loo...ation of environmental contamination caused by the pesticides
and fertilizers applied to golf courses." Used tires could provide a barrier, according to the new r...
Peregrine falcons may face new environmental threat
... Their decline was blamed mostly on organochlorine pesticides
like DDT, which were linked to thin-shelled eggs that broke during incubation. While BDEs do not produce the eggshell thinning associated with DDT, there has been some evidence of neurobehavioral problems from exposure to the chemicals in laboratory ...
Fish, FRAMES and sticky chemicals net technology award for Pacific Northwest National Laboratory
...ter release. Semi-volatiles are key ingredients in pesticides
and herbicides and can be signatures of illegal chemical or nuclear weapons production. With heated equipment and clear Teflon sheet walls, the chamber is so nonstick that users can identify semi-volatile, volatile and particulate chemicals; understa...
Signal chemical primes plants for pest attack
...s natural chemical might someday reduce the use of pesticides
and improve crop quality. Tumlinson chose the corn and beet armyworm system because the Florida facility has raised beet armyworms for a long time, and corn seedlings can be ready for experimentation in a week or two, while other plants take up to a ...
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