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Economic Injury Levels For Aphis Glycines Matsumura (Hemiptera: Aphididae) On The Soybean Aphid Tolerant Ks4202 Soybean, Lia Marchi-Werle, Edson L.L. Baldin, Hillary D. Fischer, Tiffany Heng-Moss, Thomas Hunt
Economic Injury Levels For Aphis Glycines Matsumura (Hemiptera: Aphididae) On The Soybean Aphid Tolerant Ks4202 Soybean, Lia Marchi-Werle, Edson L.L. Baldin, Hillary D. Fischer, Tiffany Heng-Moss, Thomas Hunt
Department of Entomology: Faculty Publications
The soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), is an invasive species from Asia that has been the major economic insect pest of soybeans, Glycine max (L.) Merrill, since 2000. While use of soybeans expressing antibiosis and antixenosis is a well-studied strategy to manage this pest, aphid-tolerant soybeans remain underexplored. This study examined the relationship between cumulative aphid-days (CAD) and yield loss in the tolerant soybean KS4202 during two growing seasons to determine the economic injury levels (EILs) for soybean aphids on KS4202. Soybean aphid infestations were initiated during the soybean reproductive stages. A range of CAD treatments (3,000–45,000 CADs) …