Biology and Economics of Recommendations for Insecticide-Based Management of Soybean Aphid

Authors

Robert L. Koch, University of MinnesotaFollow
Bruce D. Potter, University of MinnesotaFollow
Phillip A. Glogoza, University of Minnesota ExtensionFollow
Erin W. Hodgson, Iowa State UniversityFollow
Christian H. Krupke, Purdue UniversityFollow
John F. Tooker, Penn State UniversityFollow
Christina D. DiFonzo, Michigan State UniversityFollow
Andrew P. Michel, Ohio State UniversityFollow
Kelley J. Tilmon, Ohio State UniversityFollow
Travis J. Prochaska, North Dakota State University ExtensionFollow
Janet J. Knodel, North Dakota State UniversityFollow
Robert Wright, University of Nebraska--LincolnFollow
Thomas E. Hunt, University of Nebraska--LincolnFollow
Bryan Jensen, University of WisconsinFollow
Adam J. Varenhorst, South Dakota State UniversityFollow
Brian P. McCornack, Kansas State UniversityFollow
Kelly A. Estes, University of IllinoisFollow
Joseph L. Spencer, University of IllinoisFollow

Document Type

Article

Date of this Version

2016

Citation

Published in Plant Health Progress 17 (2016), pp 265-269. doi:10.1094/PHP-RV-16-0061

Comments

Copyright © 2016 The American Phytopathological Society. Used by permission.

Abstract

Soybean aphid, Aphis glycines Matsumura, remains the key insect pest of soybean, Glycine max (L.) Merrill, in the north-central United States. Management of this pest has relied primarily on scouting and application of foliar insecticides based on an economic threshold (ET) of 250 aphids per plant. This review explains why this ET remains valid for soybean aphid management, despite changes in crop value and input costs. In particular, we review how soybean aphid impacts soybean yield, the role of biology and economics in recommendations for soybean aphid management, and the short- and long-term consequences of inappropriately timed insecticide applications.