Tag: "pesticide" at biology news
Pesticides in the nation's streams and ground water
...t comprehensive national-scale analysis to date of pesticide
occurrence in streams and ground water. Findings s...ide an initial perspective on the relevance of the pesticide
concentrations to human health. USGS measurements were compared to EPA drinking-water standards and ...
Prenatal pesticide exposure and high blood pressure and a decreased ability to copy shapes
...of 113 mm Hg. Seven of those children had prenatal pesticide
exposure. Prenatal pesticide
exposure was also associated with a decreased ability to copy figures presented to the children as p...
Warming trend may contribute to malaria's rise
...l finds that, while other factors such as drug and pesticide
resistance, changing land use patterns and human migration also may play roles, climate change cannot be ruled out. "Our results do not mean that temperature is the only or the main factor driving the increase in malaria, but that it is one of many f...
New DNA 'fingerprinting' technique separates hemp from marijuana
...o cotton fabric, among other uses. Cotton requires pesticide
application and a hot climate, whereas hemp does not, which makes it suitable for local Minnesota agriculture. Weiblen seeks to screen a wider range of Cannabis cultivars to refine the technique. He is also working to identify regions of the Cannabis...
CASCADE researchers call for open discussions about EU chemicals legislation
...ter survey1. It shows that 63% are concerned about pesticide
residues in fruit and vegetables, as compared to the 62% who are worried about bird flu type viruses. The EU proposal for legislation called REACH suggests that all chemicals used in industry must be registered, evaluated and approved and that the sp...
Sludge recycling sends antiseptic soap ingredient to agriculture
...vely and inadvertently using it as an agricultural pesticide
that is neither regulated nor monitored." For the study, the Hopkins researchers collected samples from a large urban sewage treatment facility in the eastern United States. Over a period of weeks, they tracked the mass of triclocarban entering the p...
Biotech cotton provides same yield with fewer pesticides
...usly examined how growing Bt cotton affects yield, pesticide
use and biodiversity. It's good news for the envi...he University of Arizona in Tucson. "We've reduced pesticide
use in Arizona. We've wanted to do that for 25 years." Bt cotton has been genetically altered to pro...
Test for dioxin sensitivity in wildlife could result from new study
... chlorine such as waste incineration, chemical and pesticide
manufacturing, the production of PVC plastics and paper, and from forest fires and backyard burning. Dioxins and structurally related chemicals can cause an array of disorders in most vertebrate animals and have been linked to cancer and reproductive...
Fruit flies aboard space shuttle subjects of UCF, UC Davis study on immunity and space
...known as "Beauveria bassiana," an approved organic pesticide
that is not harmful to humans. Kimbrell, von Kalm and their colleagues will examine whether the reduced gravity makes the fungus more potent. Flies will be exposed to fungi from the shuttle and fungi kept in a lab, a move that will help determine i...
DDT in mothers linked to developmental delays in children, UC Berkeley study finds
...ven with mothers who had high accumulations of the pesticide
in their bodies, a finding that suggests that the ...d the world are considering increasing use of this pesticide
to combat malaria, the study is one of the first to suggest that DDT may be harmful to child develop...
Researchers identify energy gains and environmental impacts of corn ethanol and soybean biodiesel
...fuels. They also looked at how much fertilizer and pesticide
corn and soybeans required and how much greenhouse gases and nitrogen, phosphorus, and pesticide
pollutants each released into the environment. "Quantifying the benefits and costs of biofuels thr...
Energy-rich portfolio of new genome sequencing targets for DOE JGI
...atively low production costs, minimal nutrient and pesticide
requirements, perennial growth habit, as well as its ability to adapt to a broad range of growing conditions. The net energy gain for ethanol production from switchgrass is exceptionally favorable, coupled with low greenhouse gas emissions. The swit...
Bird brains shrink from exposure to contaminants
...idea. Birds are more susceptible to the effects of pesticide
residues and other contaminants in the environment than other animals. As well, American robins are often exposed to high levels of DDT and other chemicals because they rely heavily on earthworms as part of their diet. They specifically chose these b...
ACS News Service Weekly PressPac -- July 19, 2006
...ate is reemerging over the benefits and risks of a pesticide
hailed as a lifesaver by some and condemned as an environmental menace by others, according to an article scheduled for the July 24 issue of Chemical & Engineering News . USAID announced last year that it was funding the use of DDT for spraying th...
Mosquito spray increases toxicity of pyrethroids in creek, study finds
...ction of compounds is a whole new issue when doing pesticide
risk assessments that has been largely ignored by ...ticide contained a mixture of pyrethrin, a natural pesticide
found in a type of chrysanthemum, and piperonyl butoxide (PBO). On its own, PBO has a low level of t...
ACS News Service Weekly PressPac -- Sept. 13, 2006
...e Low-level exposure to a banned but lingering pesticide
appears to accelerate changes in the brain that ca...at levels of dieldrin, a now-banned organochlorine pesticide
developed in the 1940s as an alternative to DDT, were three times higher in the brains of 14 people ...
USGS at The Wildlife Society: From sea-ice change to contaminants to predators and prey
...sin were dusted with pesticides to kill fleas, but pesticide
application is a labor-intensive and costly solution and difficult to sustain for a long period of time. Some ferrets were also vaccinated against plague to prevent infection, but protection from the disease won't prevent the loss of their prey base....
There's much more to bees than honey
...their paper, 'A deficit of detoxification enzymes: pesticide
sensitivity and environmental response in the honeybee' in Insect Molecular Biology, they reveal that the honeybee genome has fewer protein coding genes than other insects that have been studied. And some of the most marked differences occur in group...
Animal testing alternative has ticks trembling at the knees
...researchers measure to evaluate the early signs of pesticide
toxicity. Researchers use the leg tremblings of the tick (Ioxedes ricinus) to observe the early stages of central nervous system damage, something that is not possible using live animals. Thomas Krber and Patrick Guerin at the University of Neuchtel ...
Exposure to dioxins influences male reproductive system, study of Vietnam veterans concludes
...ration, smelting, paper and pulp manufacturing and pesticide
and herbicide production. Humans are exposed to these chemicals primarily through consumption of animal fat and dairy products. Babies are exposed to the highest levels of dioxins through breast milk. Dioxins are eliminated extremely slowly from th...
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