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Tag: "agricultural" at biology news

Spider Venom Could Yield Eco-Friendly Insecticides

... World War II. The initial effectiveness of DDT in agricultural use and malaria eradication programs led many to v...cticidal compounds that could do more than control agricultural pests. As researchers inventory more kinds of venom and uncover insecticide leads, they may be able ...

Solution to Pollution: New Bacteria Eats Toxic Waste

... industrial residues, in Poland to renew soils for agricultural production and in the Netherlands to clean up sediments dredged from canals and waterways. “I want to congratulate the Utah State team on the funding for this project,?said Joop Harmsen, senior scientist at Alterra Research Center and Wageningen Univ...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

...ould be used to control insects -- crucial for the agricultural industry." ...

Scientists discover unique microbe in California's largest lake

... in the United States.Because it also receives the agricultural runoff of the Imperial Valleyand municipal runoff from Mexicali, Mexico, considerable attention hasfocused on the fate of the now highly polluted water body. Aftermassive fish kills and avian mortality in the 1990s, federal agenciestargeted the lake ...

Genetically modified rice in China benefits farmers' health, study finds

...China began doing research on genetically modified agricultural crops in the 1980s. Although it has aggressively commercialized "Bt cotton," genetically modified to produce a natural pesticide against the bollworm, China has not developed any genetically modified food crops for the commercial market. "This study...

Use of Insecticides Linked to Lasting Neurological Problems for Farmers

New research shows that farmers who used agricultural insecticides experienced increased neurological sy...portant because it evaluated the health effects of agricultural chemicals as they were commonly used by farmers. It's different from previous studies that focused o...

A new study examines how shared pathogens affect host populations

...gative factor for humans, wildlife, and species of agricultural importance. Many pathogens like malaria, Lyme disease or West Nile encephalitis that infect multiple hosts are commonly transmitted by vectors, and their transmission rate is often thought to depend on the proportion of hosts or vectors infected (i.e...

How the environment could be damaging men's reproductive health

...tomobile exhausts, street run-off, slum sewage and agricultural chemicals. POPs from polluted soils are washed off the land into the sea. Additionally, the atmosphere plays an important role in their transport over long distances. POPs have a strong tendency to bioaccumulate in marine and terrestrial food webs. H...

Biodiversity hotspots identify conservation priorities

...driven largely by extensive commercial logging and agricultural projects. On the other hand, relatively little forest has been lost in the Atlantic Forest, and Madagascar looks set to hold steady following President Marc Ravalomanana's recent pledge to triple the size of his nation's protected area network. "The...

Scientists discover how plants disarm the toxic effects of excessive sunlight

...or bioenergy sources, human and plant disease, and agricultural yields, a team of University of Wisconsin-Madison bacteriologists announced Monday in the Proceedings of the National Academy of Sciences. Plants turn energy from sunlight into bioenergy through a chemical process called photosynthesis, which also p...

Microbial fuel cell: High yield hydrogen source and wastewater cleaner

...biodegradable, dissolved, organic matter -- human, agricultural or industrial wastewater, for example -- and simultaneously clean the wastewater. "While there is likely insufficient waste biomass to sustain a global hydrogen economy, this form of renewable energy production may help offset the substantial costs ...

Microbial forensics: The next great forensic challenge

...ay not exist for many agents; numerous unprotected agricultural targets exist; and the availability of basic knowledge and biological equipment in hospitals, universities, industries, and from commercial sources. In addition, "A perpetrator can be long gone by the time a disease takes effect, and the original cri...

Growth in biomass could put US on road to energy independence

...nomically viable." Looking at just forestland and agricultural land, the two largest potential biomass sources, t...ith only relatively modest changes in land use and agricultural and forestry practices. "One of the main points of the report is that the United States can produce...

Human Cells Filmed Instantly Messaging for First Time

...nomically viable." Looking at just forestland and agricultural land, the two largest potential biomass sources, t...ith only relatively modest changes in land use and agricultural and forestry practices. "One of the main points of the report is that the United States can produce...

Shift of weather patterns necessitates rethinking of reforestation methods

...lan Jr. Foundation, a perpetual trust dedicated to agricultural science and education, made available two tracts of land ?each about 100 acres in size ?on long-term, no cost leases, for forestry research. ...

Are rice and wheat behind China's population boom?

...have never had a really good idea about what their agricultural history was," Crawford says. "We had no evidence of what other kinds of crops they grew, their relative popularity across the country and how these people may have been managing their local ecology." Crawford says what they are seeing now is a very ...

Undesirable expatriates: Preventing the spread of invasive animals

...e to North America. They now flourish in urban and agricultural areas, causing approximately $19 billion dollars worth of damages annually in the U.S. (Pimentel et al. 2000. BioScience 50, 53). The authors' exhaustive analysis, which drew on data from the 15th century to the 20th century, revealed an unsettling ...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...e regions of the ocean are much more vulnerable to agricultural runoff than was previously assumed. The study is ... Yaqui Valley agriculture To assess the impact of agricultural runoff on the gulf, the Stanford scientists turned their attention to one of Mexico's most productiv...

Man-made wetland's effectiveness similar to natural marsh

...natural marsh. The wetland, which was built in an agricultural area, reduced levels of phosphorus by nearly 60 pe... about 14 times that large. It is located in prime agricultural territory in west central Ohio ?on the shores of Great Miami River, a tributary that flows into a lo...

Stealth Worms May Improve Insect Pest Control

...y safe alternative for controlling insect pests in agricultural and forestry systems, and also for controlling insect pests of human and veterinary importance," Stock says. In each location the scientists start with biotic surveys to find out which nematodes and their corresponding bacteria meet local pest manag...

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