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Tag: "insecticides" at biology news

Scientists seek useful traits in wild cottons

...ally friendly" varieties that do not require harsh insecticides and fungicides to thrive in adverse conditions. Fi...s and gaining strength." Treated seed and insecticides applied in the furrow at planting help farmers combat thrips, but these methods are expensive and of...

Secret of worm's poison pill box protein could produce new natural insecticide

...ticide and possible alternative to some commercial insecticides that are facing increased resistance in the insect...stance. This potential new family of protein based insecticides would overcome such resistance as they operate in an entirely different way" ...

Biotech cotton provides same yield with fewer pesticides

...rs receive the same yield/acre, use fewer chemical insecticides and maintain insect biodiversity when they plant t...t bug (Lygus hesperus), growers use broad-spectrum insecticides and other types of insecticides known as insect growth regulators. Carrière and his colleagues stu...

Variations in detoxifying genes linked to Lou Gehrig's disease

Genetic variations in three enzymes that detoxify insecticides and nerve gas agents as well as metabolize cholesterol-lowering statin drugs may be a risk factor for developing sporadic amyotrophic lateral sclerosis (ALS, or Lou Gehrig's disease), and possibly responsible for a reported twofold increased risk of ...

Mosquito spray increases toxicity of pyrethroids in creek, study finds

...enign compound contained in a widely used group of insecticides can mix with and increase the toxicity of existing...ife. General urban pesticide use, such as applying insecticides on lawns, gardens and around the perimeter of homes, is likely responsible for the bulk of the pyret...

Oxidation defense in mosquitoes benefits malaria parasite

...XA could be an avenue for development of drugs and insecticides to block malaria transmission. Millions of people worldwide are infected with malaria. The research will be presented in the Proceedings of the National Academy of Science (PNAS) on-line as early as April 3 and in print April 11, 2006 ("Crystal stru...

Biotech cotton 8: Bugs 0

...known as Bt cotton use substantially less chemical insecticides than in the past. Insect pests sometimes evolve r...ohave, Pima, Pinal and Yuma. "Moreover, the harsh insecticides used to control pink bollworm resulted in a host of other insect pests becoming more serious problem...

K-State professors discover enzyme responsible for creation of a beetle's hard shell

...nd biological injuries, Muthukrishnan said. Better insecticides could be developed as a result of having a more insect-specific target like laccase-2, Kramer said. "Gaining knowledge about a molecular process required for insect development, but absent from humans and other vertebrate animals, such as cuticle ta...

Fighting malaria by manipulating mosquitoes' sense of smell

... to control this disease, which combine the use of insecticides with improved access to effective diagnosis and tr...e of treating large tracts of land with persistent insecticides with the use of scented baits. It is widely considered to be an environmental and technological succ...

University of Nevada, Reno research team discovers hormone that causes malaria mosquito to urinate

... "Most money in pesticide development is in making insecticides for pests which attack crops." This is what lead Schooley, and his colleague Geoff Coast of the University of London, down the path of finding a way to control insects that are pests at the larval stage, a path that has them instead potentially pavi...

Novel compounds show promise as safer, more potent insecticides

...t have developed two new classes of broad-spectrum insecticides that show promise as a safer and more effective wa... scientific society. Many of the most widely used insecticides today act on only a handful of exploited targets, including the organophosphates, which block acetyl...

Researchers discover key gene involved in bark beetle pheromone production

...ytidae. These beetles are difficult to control via insecticides because they live almost all of their lives, from eggs to adults, burrowed under thick bark where they are protected. Only for a few hours do they fly from one tree to another to join other bark beetles, mate and start a new life cycle. But other ba...

WHO Warns Of Increased Risk Of Vector-borne Diseases In Tsunami-affected Areas

...es, and equipment for larviciding and fogging with insecticides as a stopgap measure. In addition, health workers are starting to involve the community to clean up the Aedes mosquito breeding sites in the open water containers and debris around camps and homes", added Dr Samlee. Experts have been deployed and an...

Use of Insecticides Linked to Lasting Neurological Problems for Farmers

... research shows that farmers who used agricultural insecticides experienced increased neurological symptoms, even ...bness and other neurological symptoms. Some of the insecticides addressed by the study are still on the market, but some, including DDT, have been banned or restric...

Spider Venom Could Yield Eco-Friendly Insecticides

...ear, despite the extensive application of chemical insecticides since World War II. The initial effectiveness of D...ria eradication programs led many to view chemical insecticides as a panacea. But widespread use of the chemicals has boosted insects' resistance, even to increased...

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