Degree Type

Thesis

Date of Award

2006

Degree Name

Master of Science

Department

Entomology

First Advisor

Matthew E. O'Neal

Abstract

In Iowa, surveys of natural enemies in soybean [Glycine max (L.) Merr.] conducted before the arrival of Aphis glycines Matsumara (Hemiptera: Aphididae) revealed several species that may contribute to the mortality of A. glycines. In 2004 and 2005, several sampling methods were investigated to determine if diversity of the natural enemy community in Iowa soybean has changed with the arrival of A. glycines. We hypothesized that the natural enemy community in soybean has changed with the introduction of A. glycines and that sampling methods would collect different species of natural enemies. Also, with the use of an alfalfa living mulch, we investigated the impact of natural enemies on A. glycines. We hypothesized that a living mulch would increase the abundance of the aphidophagous community in soybean and suppress A. glycines establishment and population growth.

DOI

https://doi.org/10.31274/rtd-180813-13052

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu

Copyright Owner

Nicholas Patrick Schmidt

Language

en

Proquest ID

AAI1439863

File Format

application/pdf

File Size

88 pages

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