Preventing the Spread of Potato Viruses:
What Insecticides Can and Cannot Do
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Potato Leaf Roll Virus (PLRV) and Potato Virus Y (PVY) are the two most serious viral diseases affecting potato growers in North America. Each virus is characterized by its own distinct epidemiology, and should be treated accordingly. This presentation will help consultants, growers, and other practitioners in North America to optimize insecticide use for controlling aphid vectors of PLRV and PVY in their crops. Practitioners will learn the differences between persistently and non-persistently transmitted viruses, between colonizing and non-colonizing aphid species, and their implications for making proper decisions on using insecticides.