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Tag: "pesticides" at biology news

Bt cotton in China fails to reap profit after seven years

...ts they have reaped for several years by saving on pesticides have now been eroded. The reason, as reported by ...t from developing resistance to the Bt cotton. The pesticides used in these refuge fields help control secondary pest populations on the nearby Bt cotton fields. ...

Bird brains shrink from exposure to contaminants

...t people need to be more cognizant of their use of pesticides and herbicides," said Iwaniuk. "People need to be careful about using chemicals in their homes or farms. Who knows the effects these will have down the road." For more information, please contact: Dr. Andrew Iwaniuk, Faculty of Science University o...

Biotech cotton provides same yield with fewer pesticides

...t biodiversity was in a particular field. "Yield, pesticides and effects on non-target organisms -- we must look at those all together to assess the environmental impacts of transgenics," Carrière said. "The take-home message is that transgenic crops are very promising for reducing the impact of agriculture, b...

Pesticides need sunscreen to beat the heat

..., has developed a new type of capsule that shields pesticides from UV light. The research, to be published on Mo...ement Science (DOI 10.1002/ps.1301) shows that the pesticides can be exposed to sunlight for at least twice as long without degrading. Dr Wen, of the Bejing Un...

Fake pesticides threaten food safety

More than one in 20 pesticides sold in the EU could be fake, potentially endanger...ent illegal imports. We recommend that farmers buy pesticides from a reliable source. CPA members sign a code of practice,' he says. The EU crop protection mar...

Salamanders suffer delayed effects of common herbicide

...ions." Atrazine is one of the most widely used pesticides in the United States, and possibly the world. It is relatively long-lived and is even found at the poles. According to the U.S Environmental Protection Agency, it is one of the most common contaminants in ground and surface water. Rohr and his co...

Research on grey mould offers possible breakthrough in tomato cultivation

...ltivate new tomato varieties without having to use pesticides against grey mould (Botrytis cinerea). This is the conclusion of the STW-sponsored thesis by Richard Finkers from Wageningen University, with which he hopes to earn his doctorate on 3 April 2007. Finkers designed highly efficient methods whereby toma...

Pitt study notes decline in male births in the US and Japan

...w that men who work with some solvents, metals and pesticides father fewer baby boys. We also know that nutritional factors, physical health and chemical exposures of pregnant women affect their ability to have children and the health of their offspring. We suspect that some combination of these factors, along ...

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

... The system has been tested successfully to detect pesticides in samples of drinking water and commercial orange...have established control measures to prevent these pesticides entering the food chain. Similarly, antibiotics used to treat bacterial infections in domestic anima...

100 percent of pregnant women have at least one kind of pesticide in their placenta

...ugr.es ]), analyzes the presence of organochlorine pesticides –normally used as pesticides- in the organisms of ...inds of chemical substances. Fifteen different pesticides in the organisms of pregnant women In her study, through the analysis of the placentas, López st...

Premature births may be linked to seasonal levels of pesticides and nitrates in surface water

...rs to be strongly associated with increased use of pesticides and nitrates, according to work conducted by Paul ...leagues found that preterm birth rates peaked when pesticides and nitrates measurements in surface water were highest (April-July) and were lowest when nitrates a...

More recycling on the farm could reduce environmental problems

... a shift toward practices that use lower inputs of pesticides and energy and more recycling of energy and materials, according to an article published in the May 2007 issue of BioScience. The author, Craig J. Pearson of the University of Guelph, documents how semiclosed agricultural systems -- which he terms "r...

Pesticides choke pathway for nature to produce nitrogen for crops

...w at the University of Oregon, has shown that many pesticides interfere with the ability of legumes to recruit s...redit: University of Oregon Many farmers applying pesticides to boost crop yields may instead be contributing to growth problems, scientists report in a new stud...

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