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Wasps Could Replace Bomb, Drug Dogs
By ELLIOTT MINOR, Associated Press Writer
Sat Dec 3,11:49 AM ET

TIFTON, Ga. - Trained wasps could someday replace dogs for sniffing out drugs, bombs and bodies. No kidding.

Scientists say a species of non-stinging wasps can be trained in only five minutes and are just as sensitive to odors as man's best friend, which can require up to six months of training at a cost of about $15,000 per dog.

With the use of a handheld device that contains the wasps but allows them to do their work, researchers have been able to use the insects to detect target odors such as a toxin that grows on corn and peanuts, and a chemical used in certain explosives.

"There's a tremendous need for a very flexible and mobile chemical detector," said U.S. Department of Agriculture entomologist Joe Lewis, who has been studying wasps since the 1960s. "Our best devices that we have currently are very cumbersome, expensive and highly fragile."

The "Wasp Hound" research by Lewis and University of Georgia agricultural engineer Glen Rains is part of a larger government project to determine if insects and even reptiles or crustaceans could be recruited for defense work. That project has already resulted in scientists refining the use of bees as land-mine detectors.

Through the years, Lewis and a USDA colleague, J.H. Tumlinson, discovered that a tiny, predatory wasp known as microplitis croceipes had relied on odors to locate nectar for food and hosts for its eggs — caterpillars that damage crops.

While they don't sting humans, the female wasps use their stingers to deposit eggs inside caterpillars, producing larvae that eventually kill the caterpillars.

"What we have ... is a technology-free organism that you can quickly program and use in a highly mobile way," said Lewis, who believes the Wasp Hound could be used to search for explosives at airports, locate bodies, monitor crops for toxins and detect diseases such as cancer from the odors in a person's breath.

Other scientists also are working to harness the sniffing power of insects.

In 2002, the Pentagon considered fitting sniffer bees with transmitters the size of a grain of salt to locate explosives and relay that information wirelessly to laptop computers.

A British firm, Inscentinel Ltd., sells trained bees and mini-hives where the insects' response to scents from natural and man-made chemicals can be monitored. The company says the system can be used to screen for explosives, drugs, chemical weapons, land mines and for food quality control.

Bromenshenk said bees may be more appropriate for open areas, while the Wasp Hound may be better in buildings.

"The difference is that we let our bees free fly," he said. "That's not good in confined areas like an airport."

http://news.yahoo.com/s/ap/20051203/ap_on_sc/bomb_sniffing_wasps;_ylt=AsYIVxdKfCWaT9ev3E8Yq18EtbAF;_ylu=X3oDMTBiMW04NW9mBHNlYwMlJVRPUCUl

On the Net:

Bee Alert Technology Inc.: http://www.mea-mft.org/hiednews8.htm

Inscentinel Ltd.: http://www.inscentinel.com/