Bittersweet: Bait-averse cockroaches shudder at sugar

Date posted: May 23, 2013

Sugar isn’t always sweet to German cockroaches, especially to the ones that avoid roach baits.

In a study published May 24 in the journal Science, North Carolina State University entomologists show the neural mechanism behind the aversion to glucose, the simple sugar that is a popular ingredient in roach-bait poison. Glucose sets off bitter receptors in roach taste buds, causing roaches to avoid foods that bring on this taste-bud reaction.

Read more from N.C. State’s News Services: news.ncsu.edu/releases/glucose-averse-roaches

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