Description:
<jats:title>Abstract</jats:title><jats:p>Field-collected<jats:italic>Agonum muelleri</jats:italic>(Herbst) adults were videotaped to assess their ability to climb soybean (<jats:italic>Glycine max</jats:italic>(L.) Merr. (Fabaceae)) plants. All individuals climbed up and down soybean plants multiple times.<jats:italic>Agonum muelleri</jats:italic>spent from 12.5 ± 3.4% to 54.1 ± 11.3% of their time on soybean plants. Caged<jats:italic>A. muelleri</jats:italic>adults on plants infested with soybean aphids,<jats:italic>Aphis glycine</jats:italic>s Matsumura (Hemiptera: Aphididae), reduced the number of apterous adults. The presence of predators had an indirect effect on the density of nymphal aphids by reducing the numbers of adult aphids.<jats:italic>Agonum muelleri</jats:italic>, an abundant carabid in soybean fields, readily climbs soybean plants to feed on soybean aphids.</jats:p>