UCSD biologists identify genetic mechanism conferring resistance to 'Bt toxins'
... of the paper, "researchers have been grinding up insect guts and finding components of those extracts that stick to Bt toxins. And over the last decade, theyve found multiple proteins, some of which appear unrelated, that bind to Bt toxins. This study may explain those seemingly contradictory results. ...Clemson-led team makes breakthrough in controlling Bt resistance in pests
...he gene is altered or defective in the insect, the insect will not bind the toxin and effectively becomes re...to cotton from bacteria that naturally produces an insect toxin. The result was a genetically modified species, called Bt cotton, that resists the tobacco bud...Of gallflies, bees, mosquitoes, and butterflies: researchers to discuss insects
...iological controls, such as the introduction of an insect to eat the offending plant, has become a popular c...riments, they observed the behavior of two related insect species commonly found in the Middle East. One species, the mosquito Culiseta longiareolata, is hig...Component of fly saliva makes promising Leishmaniasis vaccine
...esearchers produced a vaccine to the saliva of the insect that transmits the parasite. This approach could potentially be used to develop vaccines for other insect- or tick-borne diseases." Leishmaniasis refers to a group of related diseases. Different species of the single-celled parasite Leishmania can ...NIAID awards grant to rapidly sequence the malaria mosquito genome
... an infectious organism, its natural host, and the insect that transmits the disease from person to person. "This initiative will give us the pieces to an incredibly complex puzzle," says NIAID Director Anthony S. Fauci, M.D. "By analyzing and comparing the genomes of all three organisms, researchers will ...Genes passed from crops to weeds persist for generations
... crops - such as resistance to insect pests - can become a permanent ... such as resistance to viral diseases, insect pests and herbicides. While the new hybrid weeds may not be...Fire ant queens and workers negotiate truce' on colony sex ratio
...nies. The conflict offers a glimpse into a complex insect society that is neither an absolute monarchy under...sts understand the complicated structure of social insect societies, including those of ants, wasps, bees and termites, explains Dr. Ed Vargo, NC State assist...Forestalling pesticide, antibiotic resistance possible, theory predicts
...ically slowing the rate at which resistance enters insect populations," Pittendrigh says. The result, the re...ts. Although resistance can vary, some examples of insect resistance can be dramatic. Dieldrin is a compound no longer used commercially, but still commonly ...How brain cells remember their birth order
...he lessons learned about neural development in the insect might well be important in understanding human neural development. The Drosophila system is simple compared to mammals, but what I have found amazing is the apparent parallels between mammalian cortical development and neural stem cells in flies. Jus...Catnip repels mosquitoes more effectively than DEET
...es than DEET the compound used in most commercial insect repellents. The finding was reported today at the ...e as DEET to have the same effect. Most commercial insect repellents contain about 5 percent to 25 percent DEET. Presumably, much less catnip oil would be nee...American Chemical Society meeting features cutting-edge research August 26-30 in Chicago
...es than DEET, the compound used in most commercial insect repellants, researchers have found. ( AGRO 73, Monday, August 27, 9 a.m.) Congressman Danny Davis speaks at minority affairs luncheon Rep. Danny K. Davis (D-Ill.) will speak at a luncheon sponsored by the ACS Committee on Minority Affairs. Th...University of Ulster spearheads giant leap forward in medicine
...ventional antibiotics. Make crops resistant to insect attack. Help tackle cancer tumours and leukaem...ed into food crops or crops like cotton to prevent insect attack without the use of pesticides. A Tree Frog from Australia has peptides which are effective in...Researchers put their heads together to understand complex world of wild plants and animals
...environments." Species of different sizes - say an insect and an elephant - perceive environment in very different ways, says Lima-Filho. For this reason, he assigns each organism with a mathematical entity, the scaling function, which reflects the scale at which the landscape is perceived by the organism. ...California researchers receive award for developing natural pesticide
...tems because it doesnt cause secondary diseases or insect problems, and it is nontoxic to beneficial insects. Serenade is easily applied like a chemical pesticide and can be used up to and including the day of harvest. The U.S. Environmental Protection Agency has approved the pesticide for agricultural an...UC Berkeley expert on insect flight receives prestigious MacArthur 'genius' award
...ndings - their skill far exceeds that of any other insect or bird." To study insect flight, he has built some amazing contraptions. One is a virtual reality "flight arena" for flies, i...Plants, insects play cat and mouse game
... plant just sits there and can't run away from the insect while the caterpillar is essentially stuck on that...hing is further from the truth." Plants respond to insect damage, he says. In fact, plants are so tuned to their predators that they can detect the difference...View of forest insects changing from pests to partners
CORVALLIS The massive insect epidemics that have plagued Pacific Northwest fore...ecies, a new report concludes. Beyond that, these insect attacks are actually nature's mechanism to help restore forest health on a long-term basis and in ma...Land wont soak up carbon indefinitely say top scientists
... since the 1960s and an increase in wild fires and insect damage appears to have converted this region from a sink into a temporary carbon source with considerable year-to-year variability. There is also considerable annual variability in sink strength associated with climatic variations such as the El Nio...Flower chemicals attract some insects but deter others with toxic warning
...lant species, and they offer clues to more natural insect control agents," says Thomas Eisner, Cornell's Schurman Professor of Chemical Ecology and one of six authors of the report. An anti-feedant chemical discourages herbivorous insects and can harm those that don't get the message. One place DIPs are fo......of this sort may ultimately lead to ways to reduce insect damage to crops and stored food, along with a number of other useful applications....