​​Aphid Management and Implications for CLRDV

February 2020 | 21 min., 27 sec.
by Phillip Roberts
University of Georgia

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Summary

Cotton aphid is a sucking pest that infests most cotton acreage in Georgia. Previous research in Georgia has not demonstrated a consistent yield response to aphid control in cotton. Although some insecticides are effective in terms of lowering plant stress from aphids, most growers opt to wait for natural reductions in aphid populations caused by the fungus Neozygites fresenii. Detecting the aphid-transmitted cotton leafroll dwarf virus (CLRDV) in the U.S. Southeast requires investigating the impact of aphid management on CLRDV and resulting disease. During 2019, researchers were not able to influence the incidence of CLRDV in small plot trials with aggressive aphid management, and we were not able to eliminate aphids with the use of insecticides. Further research is needed to more fully understand the impact of aphid management on CLRDV.

About the Presenter

Phillip RobertsPhillip Roberts is a Professor and Extension Entomologist in the Department of Entomology at the University of Georgia. Primary responsibilities include developing and implementing comprehensive extension education programs in integrated pest management (IPM) for cotton and soybean production systems. Additionally, applied research and on-farm demonstrations are conducted to advance the state of the art for IPM systems.​

Contact Information:
Email: proberts@uga.edu

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