Articles with the keyword: 
Don't Judge a Worm by its Color
jerry submitted, created time 1 month 2 weeks (sciencenow.sciencemag.org)
The differences between a tiger and a lion are easy to spot. But even to the trained eye, two species of earthworms can be tough to tell apart. Indeed, what was previously thought to be one species of common garden worm may in fact be four, according to research published online 8 October in Molecular Ecology. The surprising findings, say the ecologists who authored the report, may have implications for the use of pesticides in agriculture... 
DEET's Not Sweet to Mosquitoes, Groundbreaking Research Shows
sea-maid submitted, created time 2 months 3 weeks (www.sciencedaily.com)
Spray yourself with a DEET-based insect repellent and the mosquitoes will leave you alone. But why? They flee because of their intense dislike for the smell of the chemical repellent and not because DEET jams their sense of smell, report researchers at the University of California, Davis.
Two Resistance Genes for the Price of One--Ideal?
Sue Wu submitted, created time 7 months 3 weeks (sciencenow.sciencemag.org)
It seems like a no-brainer, even for mosquitoes: Why be resistant to one pesticide when you can be resistant to two? In practice, however, such adaptations weaken insects in other ways, so more might not be a good thing.
Pesticide Brew Spells Trouble for Salmon
Sue Wu submitted, created time 9 months 2 weeks (sciencenow.sciencemag.org)
Salmon in the U.S. Pacific Northwest, and elsewhere, have been in a world of hurt for decades. One of their main enemies is agricultural chemicals, such as chlorpyrifos. The pesticide interferes with salmon brains and harms their ability to feed, according to studies by zoologist Nathaniel Scholz of the National Oceanic and Atmospheric Administration in Seattle, Washington. Now Scholz's research is showing that mixtures of pesticides are even worse for salmon and can be surprisingly lethal.
Sex "switch" points way to smarter pest control
Eric wu submitted, created time 11 months 3 weeks (www.reuters.com)
Turning off a sex "switch" triggered when female insects mate may be a smart and green way of controlling pests in future.
wugongliang submitted, created time 1 year 3 weeks (sciencenow.sciencemag.org)
Researchers have hit upon a new way to stop the pesky critters that destroy crops: They've genetically engineered plants to express insect-killing RNA molecules. The new approach could pave the way for more targeted--and environmentally friendly--pest control.
Upped toxin no longer needs to bind
Darkfrog submitted, created time 1 year 4 weeks (www.nature.com)
Bt toxins, which many plants produce naturally, have been used both as sprays and in genetically engineered crops to repel caterpillars and other competitive slimies. So far, resistance has only been found in two species. Resistant insects are found to prevent Bt from binding to receptors in their guts.
"The researchers found that when they deleted a specific region of a Bt toxin, the toxin no longer needed to bind to a receptor before it could kill its host."
Does this make anyone else nervous? The toxin will be tested extensively before it's used in the field.
Pesticides choke pathway for nature to produce nitrogen for crops
newsdigg submitted, created time 1 year 5 months (www.eurekalert.org)
According to years of research both in the test tube and, now, with real plants, a team of scientists reports that artificial chemicals in pesticides � through application or exposure to crops through runoff � disrupt natural nitrogen-fixing communications between crops and soil bacteria. The disruption results in lower yields or significantly delayed growth.
Bee Colony Collapse Disorder: Could It Be Parasites, Pathogens Or Pesticides?
diggman submitted, created time 1 year 6 months (www.sciencedaily.com)
Scientists are working hard to understand the sources of a staggering decline in honeybees in as many as 27 U.S. states and countries in Europe and Asia this winter, said Cornell associate professor of entomology Nicholas Calderone.
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