Two-year oscillation cycle in abundance of soybean aphid in Indiana

0359334 - ÚVGZ 2012 RIV GB eng J - Journal Article
Rhainds, M. - Yoo, H. J. S. - Kindlmann, Pavel - Voegtlin, D. - Castillo, D. - Rutledge, C. - Sadof, C. - Yaninek, S. - O'Neil, R. J.
Two-year oscillation cycle in abundance of soybean aphid in Indiana.
Agricultural and Forest Entomology. Roč. 12, č. 3 (2010), s. 251-257. ISSN 1461-9555. E-ISSN 1461-9563
Institutional research plan: CEZ:AV0Z60870520
Keywords : Aphididae * Aphis glycines * autumn migration * Hemiptera * heteroecy * Rhamnus * seesaw effect * soybean aphid
Subject RIV: EH - Ecology, Behaviour
Impact factor: 1.484, year: 2010

The present study evaluated the population dynamics of the heteroecious soybean aphid Aphis glycines Matsumura (Hemiptera: Aphididae) during an 8-year period in Indiana, shortly after its detection in North America. Sampling conducted at multiple locations revealed that A. glycines exhibited a 2-year oscillation cycle that repeated itself four times between 2001 and 2008: years of low aphid abundance were consistently followed by years of high aphid abundance.Similar patterns of abundance of A. glycines and coccinellids (Coleoptera: Coccinellidae) in soybean fields, both within and between-years, suggest that late season predation by coccinellids plays a role in the oscillatory cycle of aphids. Insidious flower bugs Orius insidiosus (Say) (Hemiptera: Anthocoridae) were numerically more abundant than coccinellids, although the lack of synchrony between aphids and predatory bugs suggests that O.
Permanent Link: http://hdl.handle.net/11104/0197135