News tagged with entomology
Whiteflies sabotage alarm system of plant in distress
Nov 26, 2009 |
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(PhysOrg.com) -- When spider mites attack a bean plant, the plant responds by producing odours which attract predatory mites. These predatory mites then exterminate the spider mite population, thus acting ...
Insect resistance to Bt crops can be predicted, monitored and managed
Nov 23, 2009 |
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Since 1996, crop plants genetically modified to produce bacterial proteins that are toxic to certain insects, yet safe for people, have been planted on more than 200 million hectares worldwide. The popularity of these Bt ...
Gulf fritillary is back
Sep 24, 2009 |
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(PhysOrg.com) -- A showy butterfly with bright orange-red wings and a 4-inch wingspan is back in the Sacramento metropolitan area after a four-decade absence and in the Davis area after 30 years.
UW-Madison entomologist helps farmers deal with tricky crop pest
Sep 15, 2009 |
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(PhysOrg.com) -- Historically, crop rotation has worked to keep the western corn rootworm in check in Wisconsin.
Termites eavesdrop on competitors to survive
Aug 26, 2009 |
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(PhysOrg.com) -- The drywood termite, Cryptotermes secundus, eavesdrops on its more aggressive subterranean competitor, Coptotermes acinaciformis, to avoid contact with it, according to scientists from CSIRO ...
Researcher looking for way to minimize spread of mountain pine beetle
Aug 11, 2009 |
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Like a human being who, with a compromised immune system, is vulnerable to secondary diseases, jack pine trees ravaged by budworms may be more susceptible to an invasion of mountain pine beetles.
Probing Question: Can a pandemic be predicted?
Jun 04, 2009 |
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SARS. Ebola. West Nile. Avian flu. Over the past decade, the world has watched and waited to see if these viruses would develop into global health threats. In recent weeks, the World Health Organization (WHO) sent a shockwave ...
Scientists use bed bugs' own chemistry against them
Jun 02, 2009 |
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Scientists here have determined that combining bed bugs' own chemical signals with a common insect control agent makes that treatment more effective at killing the bugs.
A natural, alternative insect repellent to DEET
Feb 05, 2009 |
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Isolongifolenone, a natural compound found in the Tauroniro tree (Humiria balsamifera) of South America, has been found to effectively deter biting of mosquitoes and to repel ticks, both of which are known spreaders of diseases ...
How Bed Bugs Outsmart the Chemicals Designed to Control Them
Biology /
Jan 08, 2009 |
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(PhysOrg.com) -- Bed bugs, once nearly eradicated in the built environment, have made a big comeback recently, especially in urban centers such as New York City. In the first study to explain the failure to control certain ...
