Multiple Department of Agriculture agencies showed off their scientific expertise at the fourth USA Science & Engineering Festival.
Dr. Sonny Ramaswamy, director of USDA National Institute of Food and Agriculture, inserts his arm into an enclosure to test the level of attraction that pheromones have on mosquitoes while at the USDA exhibition booths, during the fourth USA Science & Engineering Festival at the Walter E. Washington Convention Center, in Washington D.C, on Friday, April 15, 2016.
(USDA photo)
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