J. Christopher Bergh
- Tree Fruit and Grape Entomology
- Ph.D., Entomology, 1988, University of New Brunswick, Fredericton, NB, Canada
- B.A., Biology, 1980, University of New Brunswick, Fredericton, NB, Canada
- 2012 – present Professor of Entomology, Virginia Tech, Winchester, Va.
- 2006 – 2012 Associate Professor of Entomology, Virginia Tech, Winchester, Va.
- 2000 – 2006 Assistant Professor of Entomology, Virginia Tech, Winchester, Va.
- 1994 – 2000 Post-Doctoral Research Associate, University of Florida, Lake Alfred, Fla.
- 1993 – 1994 Post-Doctoral Research Associate, Nova Scotia Agricultural College, Truro, Nova Scotia
- 1990 – 1993 Visiting Research Scientist, Agriculture Canada, Summerland, British Columbia
- 1988 – 1990 Post-Doctoral Research Associate, Kansas State University, Manhattan, Kan.
- Entomological Society of America
- Virginia Horticultural Society
My research program employs the principles of applied insect ecology to address extant and emerging pest management issues in eastern tree fruits and wine grapes. These projects seek to expand our knowledge of the biology and behavior of pest and beneficial species, toward the refinement of existing monitoring and management technologies and the development and validation of new tactics that will reduce reliance on synthetic pesticides.
- Biological control of woolly apple aphid
- Biology, ecology, and management of brown marmorated stink bug in orchard crops
- Optimizing the management of direct pests of tree fruit
- New approaches for monitoring and managing grape root borer in vineyards
Current Graduate Students
- Nicole Quinn (PhD)
- Whitney Hadden (PhD)
My Extension program promotes the adoption of decision-making processes for pest management that rely on information about the occurrence, relative abundance, and developmental stage of pest species of tree fruits and wine grapes. Current emphasis in tree fruit systems is to assist growers with the need to simultaneously manage brown marmorated stink and the other key pests of historical importance while minimizing secondary pest outbreaks. Regular updates for growers, extension agents and crop consultants throughout each growing season provide information about the current status of key pests of apple and peach, based on pheromone trap-based monitoring in my research orchards and on the predictions of degree-day, pest phenology models. New results from insecticide efficacy trials are incorporated into all recommendations, toward promotion of optimized pest control, insecticide resistance management, and minimization of detrimental biological and ecological effects of management programs. Major components of my Extension program include presentations at winter, spring and summer educational meetings for growers, Master Gardeners, and other stakeholders, updates via blog, maintenance of a Tree Fruit Pest Management website, and participation in annual revisions to numbered extension publications.
Publications of the last five years are listed (*denotes graduate student or post-doctoral associate).
- Quinn, NF*, EJ Talamas, AL Acebes-Doria*, TC Leskey, and JC Bergh. 2018. Vertical sampling in tree canopies for Halyomorpha halys (Hemiptera: Pentatomidae) life stages and its egg parasitoid, Trissolcus japonicus (Hymenoptera: Scelionidae). Environ. Entomol., doi.org/10.1093/ee/nvy180
- Bergh, JC and NF Quinn*. 2018. Can the dispersal behavior of Halyomorpha halys (Hemiptera: Pentatomidae) inform the use of insecticide-treated netting to mitigate homeowner issues from its fall invasion? Environ. Entomol. 47: 1501–1508
- Hancock, TJ*, DH Lee, JC Bergh, WR Morrison III, and TC Leskey. 2018. Presence of the invasive brown marmorated stink bug Halyomorphahalys (Stål) (Hemiptera: Pentatomidae) on home exteriors during the autumn dispersal period: Results generated by citizen scientists. Agric. and For. Entomol. 21: 99–108
- Morrison WR III, BR Blaauw, BD Short, AL Nielsen, JC Bergh, G Krawczyk, Y-L Park, B Butler, A Khrimian, and TC Leskey. 2018. Successful management of Halyomorpha halys (Hemiptera: Pentatomidae) in commercial apple orchards with an attract-and-kill strategy. Pest Management Science. DOI: 10.1002/ps.5156
- Rice, KB, WR Morrison III, BD Short, AL Acebes-Doria*, JC Bergh, and TC Leskey. 2018. Improved trap designs and retention mechanisms for Halyomorpha halys (Hemiptera: Pentatomidae). J. Econ. Entomol. 111: 2136-2142
- Rijal JP* and JC Bergh. 2017. Grape root borer (Lepidoptera: Sesiidae): An economic pest of commercial vineyards in the eastern United States. J. IPM 8: 1–7
- Abram, PK, KA Hoelmer, AL Acebes-Doria*, H Andrews, EH Beers, JC Bergh, and 43 others. 2017. Indigenous arthropod natural enemies of the invasive brown marmorated stink bug in North America and Europe. J. Pest Sci. 90:1009–20
- Morrison III WR, AL Acebes-Doria*, E Ogburn, TP Kuhar, JF Walgenbach, JC Bergh, L Nottingham, A Dimeglio, P Hipkins, and TC Leskey. 2017. Behavioral response of the brown marmorated stink bug (Hemiptera: Pentatomidae) to semiochemicals deployed inside and outside anthropogenic structures during the overwintering period. J. Econ. Entomol. 110: 1002-1009
- Bergh JC, WR Morrison III, SV Joseph*, and TC Leskey. 2017. Characterizing spring emergence of adult Halyomorpha halys using experimental overwintering shelters and commercial pheromone traps. Entomol. Exp. & Appl. 162: 336-345
- Acebes-Doria AL*, TC Leskey, and JC Bergh. 2017. Temporal and directional patterns of nymphal Halyomorpha halys (Hemiptera: Pentatomidae) movement on the trunk of selected wild and tree fruit hosts in the Mid-Atlantic region. Environ. Entomol. 46: 258-267
- Bergh JC and JW Stallings. 2016. Field evaluations of the contribution of predators and the parasitoid, Aphelinus mali, to biological control of woolly apple aphid, Eriosoma lanigerum, in Virginia, USA. BioControl 61: 155-165
- Acebes-Doria AL*, TC Leskey, and JC Bergh. 2016. Development and comparison of trunk traps to monitor movement of Halyomorpha halys (Hemiptera: Pentatomidae) nymphs on host trees. Entomol. Exp. Appl. 158: 44-53
- Rijal JP* and JC Bergh. 2016. Food-finding capability of grape root borer (Lepidoptera: Sesiidae) neonates in soil column bioassays. J. Entomol. Sci. 51: 54-68
- Acebes-Doria AL*, TC Leskey, and JC Bergh. 2016. Host plant effects on Halyomorpha halys (Hemiptera: Pentatomidae) nymphal development and survivorship. Environ. Entomol., 45: 663-670
- Acebes-Doria AL*, TC Leskey, and JC Bergh. 2016. Injury to apples and peaches at harvest from feeding by Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) nymphs early and late in the season. Crop Protection 89: 58-65
- Leskey TC, A Agnello, JC Bergh, GP Dively, GC Hamilton, P Jentsch, A Khrimian, G Krawczyk, TP Kuhar, DH Lee, WR Morrison III, DF Polk, C Rodriguez-Saona, PW Shearer, BD Short, PM Shrewsbury, JF Walgenbach, DC Weber, C Welty, J Whalen, and F Zaman. 2015. Attraction of the invasive Halyomorpha halys (Hemiptera: Pentatomidae) to traps baited with semiochemical stimuli across the United States. Environ. Entomol. 44: 746-756
- Joseph SV*, M Nita, TC Leskey, and JC Bergh. 2015. Temporal effects on the incidence and severity of brown marmorated stink bug (Hemiptera: Pentatomidae) feeding injury to peaches and apples during the fruiting period in Virginia. J. Econ. Entomol. 108: 592-599
- Joseph SV*, JW Stallings, TC Leskey, G Krawczyk, D Polk, B Butler, and JC Bergh. 2014. Spatial distribution of brown marmorated stink bug injury at harvest mid-Atlantic in apple orchards. J. Econ. Entomol., 107: 1839-1848
- Rijal JP*, CC Brewster, and JC Bergh. 2014. Effects of biotic and abiotic factors on grape root borer (Lepidoptera: Sesiidae) infestations in commercial vineyards in Virginia. Environ. Entomol. 43: 1198-1208
- Rice K., JC Bergh, E Bergman, D Biddinger, C Dieckhoff, G Dively, H Fraser, T Gariepy, G Hamilton, T Haye, A Herbert, K Hoelmer, C Hooks, A Jones, G Krawczyk, T Kuhar, W Mitchell, A Nielsen, D Pfeiffer, M Raupp, C Rodriguez-Saona, P Shearer, P Shrewsbury, D Venugopal, J Whalen, N Wiman, T Leskey, and J Tooker. 2014. Biology, ecology, and management of brown marmorated stink bug (Halyomorpha halys). J. Integr. Pest Manag. 5: A1–13
- Rijal JP*, CC Brewster, and JC Bergh. 2014. Spatial distribution of grape root borer (Lepidoptera: Sesiidae) infestations in Virginia vineyards and implications for sampling. Environ. Entomol. 43: 716-728
- Frank DL*, A Zhang, SE Wright, JF Walgenbach, JC Bergh, and TC Leskey. 2014. Effect of a pheromone antagonist-based disruption blend on dogwood borer (Lepidoptera: Sesiidae) mate-finding and infestation in a commercial apple orchard. J. Entomol. Sci. 49: 44-55