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Fritz BJ, Reisig DD, Sorenson CE, et al. Host Plant Resistance to Megacopta cribraria (Hemiptera: Plataspidae) in Diverse Soybean Germplasm Maturity Groups V Through VIII. J Econ Entomol. 2016;109(3):1438-1449doi: 10.1093/jee/tow036.
Fritz, B. J., Reisig, D. D., Sorenson, C. E., Del Pozo-Valdivia, A. I., & Carter, T. E. (2016). Host Plant Resistance to Megacopta cribraria (Hemiptera: Plataspidae) in Diverse Soybean Germplasm Maturity Groups V Through VIII. Journal of economic entomology, 109(3), 1438-1449. https://doi.org/10.1093/jee/tow036
Fritz, B J, et al. "Host Plant Resistance to Megacopta cribraria (Hemiptera: Plataspidae) in Diverse Soybean Germplasm Maturity Groups V Through VIII." Journal of economic entomology vol. 109,3 (2016): 1438-1449. doi: https://doi.org/10.1093/jee/tow036
Fritz BJ, Reisig DD, Sorenson CE, Del Pozo-Valdivia AI, Carter TE. Host Plant Resistance to Megacopta cribraria (Hemiptera: Plataspidae) in Diverse Soybean Germplasm Maturity Groups V Through VIII. J Econ Entomol. 2016 Mar 27;109(3):1438-1449. doi: 10.1093/jee/tow036. PMID: 27018438.
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J Econ Entomol. 2016 Mar 27;109(3):1438-1449. doi: 10.1093/jee/tow036.

Host Plant Resistance to Megacopta cribraria (Hemiptera: Plataspidae) in Diverse Soybean Germplasm Maturity Groups V Through VIII.

Journal of economic entomology

B J Fritz, D D Reisig, C E Sorenson, A I Del Pozo-Valdivia, T E Carter

PMID: 27018438 DOI: 10.1093/jee/tow036

Abstract

Initially discovered in Georgia in 2009, the exotic invasive plataspid, Megacopta cribraria (F.), has become a serious pest of soybean ( Glycine max (L.) Merrill). Managing M. cribraria in soybean typically involves the application of broad-spectrum insecticides. Soybean host plant resistance is an attractive alternative approach; however, no commercial soybean cultivars have been identified as resistant. During 2013 and 2014, we compared 40 and 44 soybean genotypes, respectively, for resistance to M. cribraria in a split-plot design under natural insect infestation in small-plot experiments. Soybean genotypes were selected to maximize diversity with respect to maturity group, pubescence type, leaf shape, seed size, nitrogen fixation, drought tolerance, seed protein content, and pest resistance. Megacopta cribraria egg masses, nymphs, and adults were counted during the growing season to identify potentially resistant soybean genotypes. Soybean seed yield was measured in insecticide-protected and unprotected conditions to determine tolerance to M. cribraria feeding. In both years, a range of host plant resistance was observed. The fewest M. cribraria adults and nymphs were found on narrow-leaf, small-seeded cultivars 'N7103' and 'Vance,' as well as the nonnodulating cultivar 'Nitrasoy.' Additionally, N7103 and Vance were among the least susceptible genotypes to M. cribraria oviposition in the field. Most 'Benning' cultivar insect-resistant near-isogenic breeding lines also displayed moderate levels of resistance to M. cribraria . Seed yields of Vance and N7103 were less affected by M. cribraria in 2013 than most other soybean genotypes. These results may be useful to soybean breeders to develop cultivars with resistance to M. cribraria.

© The Authors 2016. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: [email protected].

Keywords: Plataspidae; antixenosis; invasive species; kudzu bug; tolerance

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