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Evaluation Of Greenbug And Yellow Sugarcane Aphid Feeding Behavior On Resistant And Susceptible Switchgrass Cultivars, Kyle G. Koch, Teresa Donze-Reiner, Lisa M. Baird, Joe Louis, Keenan L. Amundsen, Gautam Sarath, Jeff Bradshaw, Tiffany Heng-Moss
Evaluation Of Greenbug And Yellow Sugarcane Aphid Feeding Behavior On Resistant And Susceptible Switchgrass Cultivars, Kyle G. Koch, Teresa Donze-Reiner, Lisa M. Baird, Joe Louis, Keenan L. Amundsen, Gautam Sarath, Jeff Bradshaw, Tiffany Heng-Moss
Department of Entomology: Faculty Publications
Switchgrass (Panicum virgatum L.) is an emerging biofuel crop that serves as host for aphids. To discern the effects of plant age and possible resistance mechanisms, the feeding behavior of greenbugs (Schizaphis graminum Rondani.) and the yellow sugarcane aphid (Sipha flava Forbes.) was monitored on three diverse switchgrasses by the electrical penetration graph (EPG) technique. Callose deposition and genes associated with callose metabolism were also analyzed to discern their association with plant resistance. There was a strong host effect on greenbugs feeding on lowland cultivar Kanlow at the V3 stage of development, as compared to the greenbug-susceptible …