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1 June 2013 Does Feeding by Halyomorpha halys (Hemiptera: Pentatomidae) Reduce Soybean Seed Quality and Yield?
D. R. Owens, D. A. Herbert, Jr., G. P. Dively, D. D. Reisig, T. P. Kuhar
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Abstract

The nonnative brown marmorated stink bug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), has become an abundant pest of mid-Atlantic soybean since its introduction in the mid-1990s. Currently, there is little information indicating how this new pest should be managed in soybean or if economic thresholds developed for native stink bugs should be adjusted. In 2010 and 2011, field cage studies were conducted in Beltsville, MD, and Suffolk, VA, to evaluate H. halys injury to three different soybean reproductive development stages. Cages were infested for 2 wk using densities of zero, one, two, four, or eight stink bugs (fifth instars and adults) per 0.3 row-m. Cage plots were harvested, and subsamples were taken to determine pod losses and seed quality. Feeding injury to soybean caused by H. halys was similar to that of native stink bugs, as evidenced by seed destruction, punctures, and destroyed pods. Densities of four stink bugs per 0.3 row-m resulted in significant seed damage in three of four experiments. The full flowering (R2) soybean development stage was least affected by H. halys feeding. The full pod (R4) and the full seed (R6) stage were similarly sensitive to injury. There was no significant yield loss was associated with stink bug densities at either location, although there were significant differences among stages in two of four experiments. The data do not indicate that threshold densities for H. halys should be different than for the native stink bugs.

© 2013 Entomological Society of America
D. R. Owens, D. A. Herbert, Jr., G. P. Dively, D. D. Reisig, and T. P. Kuhar "Does Feeding by Halyomorpha halys (Hemiptera: Pentatomidae) Reduce Soybean Seed Quality and Yield?," Journal of Economic Entomology 106(3), 1317-1323, (1 June 2013). https://doi.org/10.1603/EC12488
Received: 4 December 2012; Accepted: 22 March 2013; Published: 1 June 2013
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