Monday, 27 October 2003
D0061

This presentation is part of : Student Competition Display Presentations, Section Ca. Biological Control

The impact of ant attendance on the ability of natural enemies to control the soybean aphid, Aphis glycines Matsumura (Heteroptera: Aphididae)

John J. Herbert and David J. Horn. The Ohio State University, Entomology, 318 W 12th Ave. Rm. 400D, Columbus, OH

The soybean aphid Aphis glycines Matsumura was discovered in North America for the first time in the summer of 2000.  Subsequent surveys showed an association between soybean aphid and various ant species.  The objective of this study was to determine if ant attendance affected predation and parasitism rates of A. glycines.  We tested the ability of the ant Monomorium minimum to deter predation and parasitism of A. glycines by Harmonia axyridis, Orius insidiosus, and Aphidius spp.  We propose that M. minimum is protecting colonies of A. glycines and thus locally reduces the impact of natural enemies.  

 



Species 1: Homoptera Aphididae Aphis glycines (soybean aphid)
Species 2: Hymenoptera Formicidae Monomorium minimum
Species 3: Coleoptera Coccinellidae Harmonia axyridis
Keywords: ant aphid mutualism

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