@article{lahiri_reisig_dean_reay-jones_greene_carter_mian_fallen_2020, title={Mechanisms of Soybean Host-Plant Resistance Against Megacopta cribraria (Hemiptera: Plataspidae)}, volume={49}, ISSN={0046-225X 1938-2936}, url={http://dx.doi.org/10.1093/ee/nvaa075}, DOI={10.1093/ee/nvaa075}, abstractNote={A number of soybean varieties traditionally bred for resistance to various soybean arthropod pests have been identified as resistant to Megacopta cribraria (F.) (Hemiptera: Plataspidae). However, the mechanisms of host-plant resistance (HPR) in this system are not understood. The goal of this study was to identify the mechanisms of resistance by examining the role of plant volatile organic compounds (VOCs) and free amino acids (FAAs) among 16 soybean varieties. Choice and no-choice cage experiments identified several soybean varieties that demonstrated antixenosis as well as antibiosis. However, resistance varied over time in certain soybean varieties, such as N02-7002 and PI567352B. Mean nymph number from choice experiments had positive correlations with the FAAs asparagine, tryptophan, alanine, phenylanaline, and serine; negative correlation with leucine and threonine. Four plant volatiles, hexanal, 2-pentylfuran, beta-cyclocitral, and cis-9-hexadecenal, were positively correlated with subsequent nymph development, whereas n-hexadecenoic acid was negatively correlated with nymph number only, in adult choice cage experiments. This study contributes to understanding the mechanisms of HPR through associations with plant VOCs and FAAs in relation to M. cribraria development and provides useful knowledge for developing soybean varieties for M. cribraria management.}, number={4}, journal={Environmental Entomology}, publisher={Oxford University Press (OUP)}, author={Lahiri, S and Reisig, D D and Dean, Lisa L and Reay-Jones, F P F and Greene, J K and Carter, T E, Jr and Mian, R and Fallen, B D}, editor={Naranjo, StevenEditor}, year={2020}, month={Jul}, pages={876–885} }
 @article{lahiri_reisig_reay-jones_greene_carter_mian_fallen_2020, title={Soybean Host Plant Resistance to Megacopta cribraria (Hemiptera: Plataspidae) and the Potential Role of Leaf Trichome Density}, volume={49}, ISSN={0046-225X 1938-2936}, url={http://dx.doi.org/10.1093/ee/nvz158}, DOI={10.1093/ee/nvz158}, abstractNote={Abstract Megacopta cribraria (F.) (Hemiptera: Plataspidae) is an invasive pest of soybean that has spread across the southeastern United States since its initial discovery in 2009 in Georgia. Previous studies in the southeastern states have documented both the population dynamics of this pest and host plant resistance (HPR) among soybean varieties, although the specific mechanisms of HPR remain unknown. The objectives of this study were, therefore, to 1) quantify field resistance to M. cribraria in multiple soybean varieties in two states previously affected by severe M. cribraria infestations, North Carolina (NC) and South Carolina (SC); and 2) study the role of soybean trichome density in imparting resistance against M. cribraria. Soybean variety ‘Camp’ was least attractive to M. cribraria, through time and locations, suggesting consistent resistance. Other varieties showed variable performance among the locations and sampling dates. A significant difference in trichome density was evident. However, there was no correlation between trichome density and M. cribraria infestation. Compared to a previously published study in the same location, when M. cribraria adults emerging from overwintering dispersed into soybeans, in our study only first-generation adults dispersed into soybeans. Considering the current trend of significantly lower M. cribraria infestation rates in North and South Carolina, this pest may be finally succumbing to indigenous natural enemies and should be managed by incorporating integrated pest management tactics, such as HPR, that help conserve natural enemy populations.}, number={1}, journal={Environmental Entomology}, publisher={Oxford University Press (OUP)}, author={Lahiri, S and Reisig, D D and Reay-Jones, F P F and Greene, J K and Carter, T E, Jr and Mian, R and Fallen, B D}, editor={Acebes-Doria, AngelEditor}, year={2020}, month={Jan}, pages={88–97} }
 @article{lahiri_orr_sorenson_cardoza_2017, title={Behavior of Telenomus podisi (Hymenoptera: Platygastridae) Adults under Overwintering Conditions(1)}, volume={52}, ISSN={["0749-8004"]}, DOI={10.18474/jes16-06.1}, abstractNote={Abstract  To assess overwintering refuge preferences by Telenomus podisi Ashmead, artificial refuges of varying geometries and composition were provided to wasps when exposed to overwintering conditions in an environmental chamber. Field sampling of leaf-litter and tree bark was also used in an effort to determine site preference of overwintering wasps. Under artificial overwintering conditions, wasps preferred to hang inverted while quiescent, regardless of the refuge design, indicating behavior that avoids precipitation or extreme temperature fluctuations during overwintering in field conditions. Wasps preferred refuges with wider gaps between upper and lower surfaces, avoiding spaces that were narrower than their standing height. Parasitoids also preferred settling at least 60 mm from refuge edges. Results suggest that T. podisi has a preference for the type of overwintering refuge that leaf-litter may offer.}, number={1}, journal={JOURNAL OF ENTOMOLOGICAL SCIENCE}, author={Lahiri, Sriyanka and Orr, David and Sorenson, Clyde and Cardoza, Yasmin J.}, year={2017}, month={Jan}, pages={15–28} }
 @article{lahiri_orr_cardoza_sorenson_2017, title={Longevity and fecundity of the egg parasitoid Telenomus podisi provided with different carbohydrate diets}, volume={162}, DOI={10.1111/eea.12531}, abstractNote={In order for successful biological pest control using parasitoids, the most suitable naturally available food resources, as well as the fitness of parasitoids feeding on these resources, need to be ascertained. The goal of this study was to improve the understanding of the ecological requirements and consequent fitness of one such parasitoid, Telenomus podisi Ashmead (Hymenoptera: Platygastridae), a predominant stink bug (Heteroptera: Pentatomidae) egg parasitoid native to southeastern USA. We assessed the effects of carbohydrate resources readily available in the wasp's natural habitat on longevity and fecundity of female T. podisi under laboratory conditions. Carbohydrate diets included in the study were buckwheat, Fagopyrum esculentum Moench (Polygonaceae) nectar and honeydew from cowpea aphid, Aphis craccivora Koch (Hemiptera: Aphididae), compared with honey or water controls, which are normally used for laboratory rearing of this species. Eggs of Podisus maculiventris Say (Hemiptera: Pentatomidae) were provided as hosts for oviposition. Honeydew of cowpea aphid proved to be as good a nutrition source as buckwheat nectar, in enhancing wasp longevity and fecundity. We also assessed the importance of honeydew freshness on the biological attributes of T. podisi, as honeydew becomes crystallized or highly viscous on drying up and therefore may pose an issue for uptake by parasitoids. We found that fresh honeydew of the pea aphid, Acyrthosiphon pisum Harris (Hemiptera: Aphididae) significantly enhanced wasp longevity when compared to a diet of 1‐day‐old honeydew and the fava bean leaf (control). However, fresh honeydew of green peach aphid, Myzus persicae Sulzer (Hemiptera: Aphididae) had the same effect on wasp longevity, fecundity, and proportion of male progeny as radish leaf (control). The potential of certain ubiquitously available food resources, in enhancing biological control of economically damaging pests by parasitoids, is being highlighted in this study; information which could be valuable in similar parasitoid‐host systems as well.}, number={2}, journal={Entomologia Experimentalis et Applicata}, author={Lahiri, S. and Orr, D. and Cardoza, Y. J. and Sorenson, C.}, year={2017}, pages={178–187} }
 @article{lahiri_reisig_2016, title={Ecology and Management of Kudzu Bug (Hemiptera: Plataspidae) in Southeastern Soybeans}, volume={7}, ISSN={["2155-7470"]}, DOI={10.1093/jipm/pmw013}, abstractNote={Kudzu bug, Megacopta cribraria Fabricius (Hemiptera: Plataspidae), is an invasive exotic pest of soybeans that has been present in the southeastern United States since 2009 and has been rapidly spreading through soybean-producing states. Their primary reproductive hosts in the United States are soybean, kudzu, pigeon pea, black eye pea, lima bean, pinto bean, wisteria, white sweet clover, white clover, red clover, alfalfa, perennial peanut, and American joint vetch. In soybeans, the kudzu bug feeds on vascular fluids at the stem, petiole, and nodes, causing yield losses of up to 60%. The current management recommendation for this pest includes spraying of pyrethroids such as bifenthrin, but this method is not environmentally friendly, as this negatively impacts beneficial insect populations. Sustainable management tactics, including the development of economic thresholds for insecticide sprays, assessing the spatial and temporal distribution of this pest, manipulating cultivation practices, use of biological control, and host plant resistance, are currently being explored. We present an overview of the ecology of the kudzu bug in soybeans and available management tactics to assist with the management of this potentially devastating pest of soybeans as it spreads westward.}, number={1}, journal={JOURNAL OF INTEGRATED PEST MANAGEMENT}, publisher={Oxford University Press (OUP)}, author={Lahiri, Sriyanka and Reisig, Dominic D.}, year={2016}, month={Jan} }
 @article{lahiri_orr_sorenson_cardoza_2015, title={Overwintering refuge sites for Megacopta cribraria (Hemiptera: Plataspidae)}, volume={50}, DOI={10.18474/0749-8004-50.1.69}, abstractNote={Megacopta cribraria F. (Hemiptera: Plataspidae) was first reported in the United States near Atlanta, Georgia, in fall 2009 (Suiter et al. 2010, J. Integr. Pest Manag. 1: 1–4) and has since spread throughout the southeastern United States (http:// www.kudzubug.org/distribution_map.cfm). In Asia and the United States, it is commonly associated with its preferred host plant, kudzu, Pueraria montana Lour (Merr.) var. lobata (Willd.) (Fabales: Fabaceae) (Medal et al. 2013, Fla. Entomol. 96: 631–633). Nonetheless, M. cribraria has emerged as a significant pest of soybean, Glycine max (L.) Merrill and may damage a few other legumes in the United States (Eger et al. 2010, Insecta Mundi 0121: 1–11; Hu and Carroll 2012, htpp://agfax.com/2012/05/18/Alabama-soybean-kudzubugs-making-their-move/). In Georgia and South Carolina, yield losses in untreated soybean fields averaged 18% and ranged up to 59.6% (Greene et al. 2012, United Soybean Board, Chesterfield, MO; Seiter et al. 2012, J. Econ. Entomol. 106: 1676–1683). Apart from being odoriferous, crushed nymphs have reportedly caused skin rashes, thereby raising health concerns for workers in soybean fields (Ruberson et al. 2013, Appl Entomol Zool. 48: 3–13). Megacopta cribraria is also viewed as a nuisance pest in fall through spring when adults aggregate on or around homes to overwinter, apparently close to kudzu patches (Eger et al. 2010, Insecta Mundi 0121: 1–11; Ruberson et al. 2013). Little is known about the biology and ecology of M. cribraria in North America. Prominently, we do not understand their behavior and population dynamics when host plants are not available, as in the winter. Knowledge of the overwintering behavior and biology of this species could inform surveillance and management. This study was undertaken to identify overwintering refuge areas preferred by M.}, number={1}, journal={Journal of Entomological Science}, author={Lahiri, S. and Orr, D. and Sorenson, C. and Cardoza, Y.}, year={2015}, pages={69–73} }