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Corn-leaf Aphid

Nebraska’s Joe Louis, assistant professor of Entomology, is testing the resistance of aphids to various varieties of sorghum and corn. A wire is adhered to an aphid's back with conductive paint. A plant is given an electric charge. As the aphid sucks the sugars in the plant, the electric flow increases and is measured. On aphid-resistant plants, the current barely registers. Louis holds a dish of leaves infested by corn-leaf aphids. Louis and his colleagues have found that spraying a corn plant with one of its own defensive compounds might reduce aphid colonization by as much as 30 percent. The lab setup is at left. February 22, 2019. Photo by Craig Chandler / University Communication

190222 Louis 044

Joe Louis, assistant professor of Entomology, is testing the resistance of aphids to various varieties of sorghum and corn. A wire is adhered to an aphid's back with conductive paint. The plant is given an electric charge. As the aphid sucks the sugars in the plant, the electric flow increases and is measured. On aphid-resistant plants, the current barely registers. Louis holds up a collection of leaves infested by corn-leaf aphids. Louis and his colleagues have found that spraying a corn plant with one of its own defensive compounds might reduce aphid colonization by as much as 30 percent. The lab setup is at left. February 22, 2019. Photo by Craig Chandler / University Communication.

190222 Louis 044

Nebraska’s Joe Louis, assistant professor of Entomology, is testing the resistance of aphids to various varieties of sorghum and corn. A wire is adhered to an aphid's back with conductive paint. A plant is given an electric charge. As the aphid sucks the sugars in the plant, the electric flow increases and is measured. On aphid-resistant plants, the current barely registers. Louis holds a dish of leaves infested by corn-leaf aphids. Louis and his colleagues have found that spraying a corn plant with one of its own defensive compounds might reduce aphid colonization by as much as 30 percent. The lab setup is at left. February 22, 2019. Photo by Craig Chandler / University Communication

190222 Louis 026

Joe Louis, assistant professor of Entomology, is testing the resistance of aphids to various varieties of sorghum and corn. A wire is adhered to an aphid's back with conductive paint. The plant is given an electric charge. As the aphid sucks the sugars in the plant, the electric flow increases and is measured. On aphid-resistant plants, the current barely registers. Louis holds up a collection of leaves infested by corn-leaf aphids. Louis and his colleagues have found that spraying a corn plant with one of its own defensive compounds might reduce aphid colonization by as much as 30 percent. The lab setup is at left. February 22, 2019. Photo by Craig Chandler / University Communication.

190222 Louis 026

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All photos are available to UNL departments at no charge. Email the titles of the photos to Craig Chandler or Monica Myers.

cchandler2@unl.edu
mmyers2@unl.edu

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