Chemical rat trap

A natural chemical that could be used to trap 5 kg rodents has been identified by researchers at Stevens Institute of Technology. Nutria, or coypu, are very large rat-like animals that are ravaging wetlands on the US Gulf Coast. Now, SIT's Athula Attygalle and colleagues at Cornell University and the University of Iowa have identified compounds in the anal scent glands of the species as (E,E)-farnesol and its esters using gas chromatographic retention times, and electron-ionization (EI) and chemical-ionization (CI) mass spectra. The compounds could be incorporated into a lure so that the fast-breeding rodents might be trapped quickly.