Submitted to: Potato Association of America Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: April 24, 2006
Publication Date: July 23, 2006
Citation: Pantoja, A., Alvarez, J., Munyaneza, J.E., Hagerty, A.M., Adams, T. 2006. Aphids and leafhoppers associated with potatoes in Alaska. Proceedings of the PAA/Solanaceae 2006 Meeting, July 23-27, 2006, Madison, Wisconsin. p. 193-194.
Insects were surveyed in commercial and experimental potato (Solanum tuberosum L.) fields in agricultural regions of Alaska during 2004 (Fairbanks, Delta Junction, and Palmer) and 2005 (Fairbanks, Delta Junction, Nenana, and Palmer). Aphids and leafhoppers were collected weekly from June to September and identified to genus or species when possible. During 2004, tile trap pans captured at least 10 species of aphid including known potato virus vectors Macrosiphum euphorbae complex and Myzus persicae. A little known and potentially non-colonizing virus vector, Rhopalosiphum nigrum Richards represented 86 percent of the individuals collected. During 2004, sticky yellow traps captured six genera of leafhoppers all of which contain species known to vector plant phytoplasmas. The known vectors of aster yellows phytoplasmas (causative agent of potato purple-top) Macrosteles fascifrons (Stål) and Balclutha punctata (F.) represented 52% and 4.3% of the individuals collected respectively. Data from 2005 show similar species composition and trends as those from 2004; however they are still being processed.