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Tolulope Morawo in lab

Tolulope Morawo in lab

In the course of his recent research, Tolulope Morawo, Ph.D., postdoctoral fellow at Auburn University, struggled to get useful results from tests using a traditional, horizontal four-choice olfactometer (a device for measuring insect response to olfactory stimuli). So, he designed an alternate version with a longer central tube and angled arms to improve the aerodynamics of the odor-laden air; the new design led to much improved results, Morawo says. Here, he tests the attraction of parasitic wasps (Microplitis croceipes) to herbivore-induced plant volatiles in the modified four-choice olfactometer. (Photo credit: Morgan Gregg)

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