MSU researcher uses sex chemicals to fight moths

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POSTED: November 2, 2009

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This undated photo released by Michigan State University in East Lansing shows Peter McGhee, a research assistant in the Department of Entomology. His work involves tricking moths with pheromones that interfere with males' ability to find females for mating, which reduces the need to use chemicals to control moth damage in orchards. (AP photo)

EAST LANSING, Mich. (AP) — Fruit growers are finding they can save on chemical spraying costs by using sex lures to confuse male moths looking for mates.

Michigan State University research assistant Peter McGhee is working with apple, cherry and peach growers on the nontoxic method for reducing insect infestations.

The effort uses pheromones to alter moths’ behavior and mating patterns. Pheromones are chemicals that cause changes in behavior in members of a species.

‘‘Interrupting mating season means fewer larvae,’’ Michigan Statet particular pest,’’ McGhee said. ‘‘I love showing up on a grower’s farm and having a grower look at me and say, What can you teach or show me today? How can I do this better?’’’

Pheromones have a history in the fruit business, according to the university. In the past, growers have used pheromone traps to measure insect populations and time use of insecticides.

On the Net:

Common fruit tree pests: www.canr.msu.edu/vanburen/ fruitbug.htm

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