Green peach aphid, Myzus persicae (Sulzer), is the primary vector of potato leaf roll virus (PLRV). Summer migration of green peach aphid (GPA) is largely responsible for movement of PLRV from commercial potato fields into seed potato fields. A field study conducted in 1999 noted that GPA initially colonizes field edges of potatoes. An opportunity to target management tactics at the field margins exists but the spatial and temporal window within which site-specific management is possible was not defined. The dispersal rate of GPA from the field margins into the field determines both the window of opportunity for site-specific management and the amount saved in treatment costs. GPA populations in 2001 were mapped twice weekly at four locations to determine their initial colonization and subsequent rate of spread across the fields. The resulting temporal and spatial window of opportunity for site-specific management was defined and will be discussed.
Species 1: Homoptera Aphididae Myzus persicae (green peach aphid)
The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA