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Identification of Soybean Host Plant Resistance to Brown Marmorated Stink Bugs in Maturity Group III Plant Introductions

Jonathan M La Mantia, M A Rouf Mian, Margaret G Redinbaugh
Journal of economic entomology 2018 v.111 no.1 pp. 428-434
Glycine max, Halyomorpha halys, Neotropics, Nezara viridula, Piezodorus guildinii, abortion (plants), breeding lines, crop yield, discoloration, host plants, insects, introduced plants, pests, seed weight, soybeans, weight loss, Brazil, Gulf of Mexico region, Japan, Korean Peninsula, United States
Halyomorpha halys (Stål; Hemiptera: Pentatomidae), brown marmorated stink bug (BMSB), is a polyphagous nonnative insect first found in the United States in 1996. As of 2017, BMSB has been detected in 43 states and is a severe agricultural pest in mid-Atlantic states. On soybean, Glycine max (L.) Merr (Fabales: Fabaceae), damage from BMSB infestation ranges from puncture marks with seed discoloration and deformities to seed and pod abortion. Host plant resistance has been used for managing pest populations and mitigating soybean yield losses caused by neotropical stink bugs (Eushistus heros, Nezara viridula, and Piezodorus guildinii) in Brazil and on the U.S. Gulf Coast. We evaluated maturity group III plant introductions (PIs) for resistance to BMSB damage. In 2014, field cage choice tests of 106 PIs revealed a range of both BMSB damage incidence and severity. In field choice tests, PIs 085665 and 097139 showed the lowest incidence of BMSB damage and seed weight loss due to BMSB, while PIs 243532, 243540, and 567252 had the highest. In whole plant no-choice tests, PIs 085665 and 097139 also had high levels of resistance. However, PI 085665 had a higher incidence of damage but lower seed weight loss than PI 097139, which may suggest bimodal resistance. Moreover, PIs 085665 and 097139 are from Japan and North Korea, respectively, two geographically isolated countries where BMSB is native. Thus, further characterization of host plant resistance to BMSB in each of these lines may elucidate distinct mechanisms that could be synergistic if stacked in breeding lines.