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3. Halyomorpha halys (brown marmorated stink bug)

Author

Leskey, T. C, primary, Hamilton, G. C, additional, Biddinger, D. J, additional, Buffington, M. L, additional, Dieckhoff, C, additional, Dively, G. P, additional, Fraser, H, additional, Gariepy, T, additional, Hedstrom, C, additional, Herbert, D. A, additional, Hoelmer, K. A, additional, Hooks, C. R. R, additional, Inkley, D, additional, Krawczyk, G, additional, Kuhar, T. P, additional, Lee, Doo-Hyung, additional, Nielsen, A. L, additional, Pfeiffer, D. G, additional, Rodriguez-Saona, C, additional, Shearer, P. W, additional, Talamas, E, additional, Tomasino, E, additional, Tooker, J, additional, Venugopal, P. D, additional, Whalen, J, additional, Walton, V, additional, and Wiman, N, additional

Published
2022
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5. Sweet Corn Sentinel Monitoring for Lepidopteran Field-Evolved Resistance to Bt Toxins

Author

Dively, G P, primary, Kuhar, T P, additional, Taylor, S, additional, Doughty, H B, additional, Holmstrom, K, additional, Gilrein, D, additional, Nault, B A, additional, Ingerson-Mahar, J, additional, Whalen, J, additional, Reisig, D, additional, Frank, Daniel L, additional, Fleischer, S J, additional, Owens, David, additional, Welty, C, additional, Reay-Jones, F P F, additional, Porter, P, additional, Smith, J L, additional, Saguez, J, additional, Murray, S, additional, Wallingford, A, additional, Byker, H, additional, Jensen, B, additional, Burkness, E, additional, Hutchison, W D, additional, and Hamby, K A, additional

Published
2020
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7. Sweet Corn Sentinel Monitoring for Lepidopteran Field-Evolved Resistance to Bt Toxins.

Author

Dively, G P, Kuhar, T P, Taylor, S, Doughty, H B, Holmstrom, K, Gilrein, D, Nault, B A, Ingerson-Mahar, J, Whalen, J, Reisig, D, Frank, Daniel L, Fleischer, S J, Owens, David, Welty, C, Reay-Jones, F P F, Porter, P, Smith, J L, Saguez, J, Murray, S, and Wallingford, A

Subjects
TOXINS, HELIOTHIS zea, SWEET corn, HOST plants, CANADIAN provinces, FIELD crops
Abstract

As part of an insect resistance management plan to preserve Bt transgenic technology, annual monitoring of target pests is mandated to detect susceptibility changes to Bt toxins. Currently Helicoverpa zea (Boddie) monitoring involves investigating unexpected injury in Bt crop fields and collecting larvae from non-Bt host plants for laboratory diet bioassays to determine mortality responses to diagnostic concentrations of Bt toxins. To date, this monitoring approach has not detected any significant change from the known range of baseline susceptibility to Bt toxins, yet practical field-evolved resistance in H. zea populations and numerous occurrences of unexpected injury occur in Bt crops. In this study, we implemented a network of 73 sentinel sweet corn trials, spanning 16 U.S. states and 4 Canadian provinces, for monitoring changes in H. zea susceptibility to Cry and Vip3A toxins by measuring differences in ear damage and larval infestations between isogenic pairs of non-Bt and Bt hybrids over three years. This approach can monitor susceptibility changes and regional differences in other ear-feeding lepidopteran pests. Temporal changes in the field efficacy of each toxin were evidenced by comparing our current results with earlier published studies, including baseline data for each Bt trait when first commercialized. Changes in amount of ear damage showed significant increases in H. zea resistance to Cry toxins and possibly lower susceptibility to Vip3a. Our findings demonstrate that the sentinel plot approach as an in-field screen can effectively monitor phenotypic resistance and document field-evolved resistance in target pest populations, improving resistance monitoring for Bt crops. [ABSTRACT FROM AUTHOR]

Published
2021
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19. Occurrence of Brown Marmorated Stink Bug (Hemiptera: Pentatomidae) on Wild Hosts in Nonmanaged Woodlands and Soybean Fields in North Carolina and Virginia

Author

Bakken, A. J., primary, Schoof, S. C., additional, Bickerton, M., additional, Kamminga, K. L., additional, Jenrette, J. C., additional, Malone, S., additional, Abney, M. A., additional, Herbert, D. A., additional, Reisig, D., additional, Kuhar, T. P., additional, and Walgenbach, J. F., additional

Published
2015
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21. Attraction of the Invasive Halyomorpha halys (Hemiptera: Pentatomidae) to Traps Baited with Semiochemical Stimuli Across the United States

Author

Leskey, T. C., primary, Agnello, A., additional, Bergh, J. C., additional, Dively, G. P., additional, Hamilton, G. C., additional, Jentsch, P., additional, Khrimian, A., additional, Krawczyk, G., additional, Kuhar, T. P., additional, Lee, D.-H., additional, Morrison, W. R., additional, Polk, D. F., additional, Rodriguez-Saona, C., additional, Shearer, P. W., additional, Short, B. D., additional, Shrewsbury, P. M., additional, Walgenbach, J. F., additional, Weber, D. C., additional, Welty, C., additional, Whalen, J., additional, Wiman, N., additional, and Zaman, F., additional

Published
2015
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28. Seasonal Abundance and Phenology of Halyomorpha halys (Hemiptera: Pentatomidae) on Different Pepper Cultivars in the Mid-Atlantic (United States).

Author

Philips, C. R., Kuhar, T. P., Dively, G. P., Hamilton, G., Whalen, J., and Kamminga, K.

Subjects
BROWN marmorated stink bug, PEPPER varieties
Abstract

The brown marmorated stink bug, Halyomorpha halys (Stål), is an invasive stink bug (Hemiptera: Pentatomidae) introduced into the United States in the mid-1990s. Since its initial establishment, it has spread throughout the east coast as far south as Georgia, and as far north as New Hampshire. While information is available regarding H. halys behavior and life history in some crops, relatively little information is available for vegetables such as peppers. Key questions include understanding when H. halys enters pepper fields to feed and how best to predict infestations, what population levels create economic damage, and if peppers that vary in capsaicin levels also vary in susceptibility to attack. To answer these questions, replicated plots were set up across four mid-Atlantic states using three types of peppers: sweet bell, sweet banana, and hot chili.We found that there was no difference in the overall abundance of all life stages of H. halys on all pepper varieties tested. However, there were differences in bug density by site, but these differences did not translate to differences in the proportion of damaged fruit. The presence of adult H. halys is a better predictor of damage in banana peppers, whereas nymphs are a better predictor in bell pepper. In addition, across all sites, the presence of egg masses was low in pepper crops and densities of both adults and immatures tend to peak on pepper plants in early August. Altogether, this information can be used to help develop a pest management program in peppers that will reduce crop losses to this new devastating pest, while reducing the reliance on insecticides tomanage this pest at the same time. [ABSTRACT FROM AUTHOR]

Published
2017
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29. Comparison of Two Sampling Methods for Assessing Halyomorpha halys (Hemiptera: Pentatomidae) Numbers in Soybean Fields.

Author

Aigner, B. L., Herbert, D. A., Dively, G. P., Venugopal, D., Whalen, J., Cissel, B., Kuhar, T. P., Brewster, C. C., Hogue, J. W., and Seymore, E.

Subjects
SOYBEAN diseases & pests, BROWN marmorated stink bug, STINKBUGS
Abstract

Sampling soybean fields for the brown marmorated stink bug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), can be challenging. Both adults and nymphs have a "startle response" and drop to the ground with even the slightest disturbance. This behavior could reduce the effectiveness of the traditional sweep net and ground cloth sampling methods. In 2013 and 2014, in Virginia, Delaware, and Maryland, we evaluated a visual plant inspection method that consisted of counting the number of brown marmorated stink bug nymphs and adults seen on soybean plants in a 2-min inspection period while walking carefully between two rows. After a 30-min interval, which allowed the stink bugs to reposition in the canopy, the area was resampled using 15 sweeps with a 38-cm-diameter sweep net. In total, 76 soybean fields and 2,042 paired comparisons were used to determine a strong linear relationship between sampling methods (y = 0.984x + 0.4359, R2 = 0.6934, where y = brown marmorated stink bugs/2-min visual count and x = brown marmorated stink bugs/15 sweeps). An average visual count of 5.4 brown marmorated stink bugs in 2 min was estimated as being equivalent to the current economic threshold of 5 stink bugs per 15 sweeps. Visual inspection appears to be an effective method for assessing brown marmorated stink bug populations in soybeans. [ABSTRACT FROM AUTHOR]

Published
2016
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30. L1

Author

Kuhar, T. P., primary, Doughty, H., additional, Kamminga, K., additional, and Lilliston, L., additional

Published
2012
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33. Distribution ofCotesia rubecula(Hymenoptera: Braconidae) and Its Displacement ofCotesia glomeratain Eastern North America

Author

Herlihy, M. V., primary, Van Driesche, R. G., additional, Abney, M. R., additional, Brodeur, J., additional, Bryant, A. B., additional, Casagrande, R. A., additional, Delaney, D. A., additional, Elkner, T.E., additional, Fleischer, S. J., additional, Groves, R. L., additional, Gruner, D. S., additional, Harmon, J. P., additional, Heimpel, G. E., additional, Hemady, K., additional, Kuhar, T. P., additional, Maund, C. M., additional, Shelton, A. M., additional, Seaman, A. J., additional, Skinner, M., additional, Weinzierl, R., additional, Yeargan, K. V., additional, and Szendrei, Z., additional

Published
2012
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