Sixty-five soybean breeding lines plus three soybean cultivars were evaluated for resistance to stink bug and lepidopteran feeding in replicated field plots in 2001-2002. All breeding lines contained IAC100 in their pedigree. IAC100 is a soybean cultivar developed in Brazil that has a high level of resistance to stink bug feeding. In 2003, the 10 entries each with the lowest mean stink bug damaged kernels, the lowest velvetbean caterpillar defoliation, and the higest yields were selected for futher investigation. The entries demonstrated a wide range in stink bug damage (10- 38%), defoliation (23- 62%), and yield (33- 11 bu/acre).
Species 1: Heteroptera Pentatomidae Nezara viridula (southern green stink bug)
Species 2: Lepidoptera Noctuidae Anticarsia gemmatalis (velvetbean caterpillar)
Keywords: host plant resistance, integrated pest management
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