Douglas G. Pfeiffer
Department of Entomology
205C Price Hall
170 Drillfield Drive
Virginia Tech
Blacksburg, VA 24061-0319
Ph. (540) 231-4183

Fax (540) 231-9131

Departmental bio page

dgpfeiff at vt.edu

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General Areas of Interest

Dr. Pfeiffer's position (40% teaching, 35% research, 25% extension) deals primarily with fruit IPM and ecological interactions in orchards and vineyards. Recent research topics center on several invasive fruit pests: spotted lanternfly, spotted wing drosophila, African fig fly, and brown marmorated stink bug.  Other topics include mating disruption for lepidopteran pests, biogeography of plum curculio, and insect/plant interactions. Current Research focus has centered strongly in vineyard pest management, especially mealybugs, grape berry moth, grape root borer, Japanese beetle and sharpshooters that transmit Pierce's disease. Another research focus deals with insects feeding in primocane-bearing caneberries (raspberries and blackberries), especially Japanese beetle, green June beetle and stink bugs. Extension activities include electronic dissemination of fruit IPM information through a web site and e-mail lists, and a blog, in addition to conventional extension publications and grower meetings. Courses taught are Insect Structure and Function (graduate), Insect Pest Management (undergraduate) and Arthropod Pest Management (graduate). A course on Managing Arthropod Pests is offered in the on-line Masters of Agriculture and Life Sciences. Dr. Pfeiffer has developed an international component to his program, and is involved in a project on biological control in Cambodian rice.  A recent project centered on oriental fruit fly, Bactrocera dorsalis, in mango in Senegal.  He was formerly the Site Chair for the IPM CRSP (now IPM IL) regional project in West Africa (Mali, Senegal and Ghana), and was active in the Indian component of the project in South Asia (India, Nepal and Bangladesh. He was earlier the Site Chair for the Eastern European regional project (Albania, Ukraine and Moldova). These projects deal with high value horticultural crops, primarily vegetable crops.

Regional Web Site for Tree Fruit and Small Fruit Information:

Visit the Virginia Fruit Web Site, a source of multi-disciplinary information relating to fruit crops

Eastern Branch Site

Visit the Eastern Branch of the Entomological Society of America.


Research Publications        Extension Publications Cumulative Publications

* Indicates graduate student in Pfeiffer lab; ** indicates visiting international scholar.

Research Publications in last 6 years
Bielski, J.*, D. Pfeiffer, R. Ochoa and A. Ulsamer. In press. New state records of Aculops ailanthi (Lin, Jin, and Kuang) (Acariformes: Trombidiformes: Prostigmata: Eriophyidae), in USA; a pest or biological control agent of Ailanthus altissima (Mill.) Swingle? Proc. Entomol. Soc. Wash.

Dechaine, A. C.*, D. G. Pfeiffer, T. P. Kuhar, S. M. Salom, T. C. Leskey, K. C. McIntyre, B. Walsh and J. H. Speer. 2023. Dendrochronology reveals different effects among host tree species from feeding by Lycorma delicatula (White). Front. Insect Sci. 3: 1137092 (11 p) Invited (https://doi.org/10.3389/finsc.2023.1137082).

Hussain, B.**, R. A. War and D. G. Pfeiffer. 2023. Jasmonic and salicylic induced defensive response in wine grapes against Drosophila suzukii (Diptera: Drosophilidae). Heliyon 9 (6): e16505. (https://doi.org/10.1016/j.heliyon.2023.e16505)

Nixon, L. J., S. Jones, A. Dechaine*, D. Ludwick, M. Hickin, L. Sullivan, J. E. Elsonsohn, J. Gould, M. Keena, T. Kuhar, D. G. Pfeiffer and T. C. Leskey. 2022. Development of rearing methodology for the invasive spotted lanternfly, Lycorma delicatula (Hemiptera: Fulgoridae). Frontiers in Insect Science 2: 1025193. 11 p. (https://doi.org/10.3389/finsc.2022.1025193)

Dechaine, A. C.*, M. Sutphin, T. C. Leskey, S. M. Salom, T. P. Kuhar and D. G. Pfeiffer. 2021. Phenology of Lycorma delicatula (Hemiptera: Fulgoridae) in Virginia, USA. Environ. Entomol. 50: 1267-1275. (https://academic.oup.com/ee/article/50/6/1267/6382325)

Smyers, E. C., J. M. Urban, A. C. Dechaine*, D. G. Pfeiffer, S. R Crawford and D. C. Calvin.  2021. Spatial-temporal model for predicting spring hatch of the spotted lanternfly, Lycorma delicatula (Hemiptera: Fulgoridae). Environ. Entomol.https://doi.org/10.1093/ee/nvaa129)

Nixon, L, H. Leach, C. Barnes, J. Urban, D. Kirkpatrick, D. Ludwick, B. Short, D. G. Pfeiffer and T. C. Leskey. 2020. Development of behaviorally based monitoring and biosurveillance tools for the invasive spotted lanternfly (Hemiptera: Fulgoridae Lycorma delicatula). Environ. Entomol. 49: 1117-1126. ( https://doi.org/10.1093/ee/nvaa084)

Ludwick, D., W. R. Morrison, A. L. Acebes-Doria, A. M. Agnello, J. C. Bergh, M. L. Buffington, G. C. Hamilton, J. K. Harper, K. A. Hoelmer, G. Krawczyk, T. P. Kuhar, D. G. Pfeiffer, A. L. Nielsen, K. B. Rice, C. Rodriguez-Saona, P. W. Shearer, P. M. Shrewsbury, E. J. Talamas, J. F. Walgenbach, N. G. Wiman, T. C. Leskey. 2020 Invasion of the brown marmorated stink bug (Hemiptera: Pentatomidae) into the USA: Developing a national response to an invasive species crisis through collaborative research and outreach efforts. J. Integr. Pest Manag. 11(1): 1-16. ( https://doi.org/10.1093/jipm/pmaa001) Shrader, M. E.*, H.J. Burrack and D. G. Pfeiffer. Effects of interspecific larval competition on developmental parameters in nutrient sources between Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) and Zaprionus indianus Gupta. J. Econ. Entomol. 113: 230-238: 1-9 (https://doi.org/10.1093/jee/toz297)

Balayara, A.*, C. C. Brewster, L. J. Vaughan and D. G. Pfeiffer. 2019. Foliar, fruit, and soil-applied organic insecticides for oriental fruit fly, Bactrocera dorsalis (Diptera: Tephritidae), in Senegalese mangoes. Plant Health Prog. 20: 187-193. (https://apsjournals.apsnet.org/doi/10.1094/PHP-10-18-0061-RS)

Pfeiffer, D. G., M. E. Shrader*, J. C. E. Wahls*, B. N. Willbrand*, I. Sandum*, K. van der Linde, C. A. Laub, R. S. Mays, E. R. Day. 2019. African fig fly (Diptera: Drosophilidae): Biology, expansion of geographic range and its potential status as a soft fruit pest. J. Integr. Pest Manag. 10(1): 20 p. (https://doi.org/10.1093/jipm/pmz018)

Shrader, M. E.*, H. J. Burrack and D. G. Pfeiffer. 2019. Drosophila suzukii (Diptera: Drosophilidae) oviposition and adult emergence in six wine grape varieties grown in Virginia. J. Econ. Entomol. 112: 139-148. doi.org/10.1093/jee/toy305

Willbrand, B. N.*, and D. G. Pfeiffer. 2019. Brown rice vinegar as an olfactory field attractant for Drosophila suzukii (Matsumura) and Zaprionus indianus Gupta (Diptera: Drosophilidae) in cherimoya in Maui, Hawaii, with implications for attractant specificity between species and estimation of relative abundance. Insects 10(3): 80 (18 p) (https://www.mdpi.com/2075-4450/10/3/80/htm)

Extension Publications in last 6 years

Pfeiffer, D. G., K. Rice and Y. Zeng. 2024. Commercial Small Fruits: Disease and Insects. p. 2-1 – 2-21. In: 2024 Pest Management Guide for Horticultural and Forest Crops. Va. Coop. Ext. Pub. 456-017. Revised annually since 1988. (https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/456/456-017/ENTO-337B.pdf)

Pfeiffer, D. G., A. B. Baudoin, K. B. Rice and M. Nita. 2024. Grapes: Diseases and Insects in Vineyards. p. 3-1 – 3-14. In: 2024 Pest Management Guide for Horticultural and Forest Crops. Va. Coop. Ext. Pub. 456-017. Revised annually since 1988. (https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/456/456-017/ENTO-337C.pdf)

Pfeiffer, D. G. 2024. Commercial Hops: Insects. p. 4-7 – 4-9. In: 2024 Pest Management Guide for Horticultural and Forest Crops. Va. Coop. Ext. Pub. 456-017. Revised annually. (https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/456/456-017/ENTO-337D.pdf)

Pfeiffer, D.G., K. B. Rice, M. Nita and S. Acimovic. 2023. Home Fruit: Diseases and Insects. p. 3-1 – 3-24. In: Pest Management Guide for Home Grounds and Animals. Va. Coop. Ext. Pub. 456-018. Revised annually since 1988. (https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/456/456-018/ENTO-336C.pdf)

Pfeiffer, D. G. (Bulletin Coordinator since 1988), K. B. Rice, J. M. Wilson, C. Quesada, C. R. R. Hooks, S. Sherif, S. Acimovic, M. Rahman, J. B. Kotcon, J. F. Derr, R. S. Chandran, D. L. Frank, and J. Parkhurst. 2023. 2023 Spray Bulletin for Commercial Tree Fruit Growers. Va. Coop. Ext. Serv. Publ. 456-419. 180 p. A regional manual for VA, WV and MD. Revised annually. (https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/456/456-419/ENTO-341w.pdf)

Nita, M. (Eds.), (Pathology) P. Brannen (Ga), S. Villani (NCSU), Z. Hansen (TN), M. Nita (VT), (Entomology) H. Burrack (NCSU), D. Pfeiffer (VT), B. Blaauw (UGa) (Weed Sci.) W. Mitchem (NCSU), (Vertebrate and Grape Culture) D. Lockwood (Univ TN), M. T. Mengak (UGa), E. T. Stafne (Miss. State), (Pesticide Stewardship & Safety) and A. Sial (UGa). 2021. 2021 Southeast Regional Bunch Grape Integrated Management Guide. Southern Region Small Fruit Consortium Bull. 46. (https://smallfruits.org/files/2020/02/2020-Bunch-Grape-Spray-Guide.pdf)

Oliver, J. (ed.), (Pathology), N. Gauthier (Univ. Ken), R. Melanson (Miss. State), J. Oliver (Georgia), G. Schnabel (Clemson), I. Tzanetakis (Univ Ark.), (Entomology) A. Cato (Arkansas), M. Favre (Univ. Ky.), D. Pfeiffer (VT), A. Sial (Univ. Ga.), (Weed Sci.) W. Mitchem, M. Czarnota (UGa), (Horticulture) A, McWhirt (Univ. Ark.), J. Samtani (VT), E. Stafne, (Vertebrates) D. Lockwood (Univ. TN), M. T. Mengak (Univ. Ga.). 2023. 2023 Southeast Regional Caneberries Integrated Management Guide. Southern Region Small Fruit Consortium Bull. 47 (594 hits in 2015, 446 in 2017) (https://smallfruits.org/files/2020/01/2020-Caneberry-Spray-Guide.pdf).

Melanson, R. A. (ed.), (Pathology), G. Schnabel (Clemson), R. A. Melanson (Miss. State Univ.), P. Brannen (UGa), M. H. Ferguson (La. State Univ.), J. Desaeger (Univ. Fla.). B Cline (NCSU), I. Tzanetakis (Arkansas), R. Singh (LSU), Y. Zeng (VT), N. Gauthier (Univ. Ky.) , (Horticulture) J. Samtani (VT), E. Vinson (Auburn Univ.), E. Stafne (Mississippi), A. McWhirt (UArk), (Entomology) D. Pfeiffer (VT), A. Sial (GA), G. Rains (GA), A. Cato (Arkansas), T.Bilbo (Clemson) (Weeds) K. Jennings (NCSU), M. Czarnota (GA), (Vertebrate) D. Lockwood (Tennessee) and M. T. Mengak (Georgia), (Pesticide Stewardship) A. Sial. (UGa). 2023. 2023 Southeast Regional Strawberry Integrated Pest Management Guide for Plasticulture Production. Southern Region Small Fruit Consortium Bull. 44. (https://extension.uga.edu/publications/detail.html?number=AP119-4) Sial, H., A. Cato, D. Pfeiffer, M. Favre, E. Stafne, J. Samtani, B. Cline, M. H. Ferguson, R. Melanson, J. Oliver, R. Singh, M. Czarnota, K. Jennings, M. T. Mengak and D. Lockwood. 2023. 2023 Southeast Blueberry Integrated Management Guide. Southern Region Small Fruit Consortium Bull. 48. ( https://smallfruits.org/files/2020/01/2020-Blueberry-Spray-Guide.pdf )

Little, E. (ed.), (Pathology), J. Oliver, E. Little, B. Cline, N. W. Gauthier, K. Fontenot, R. Melanson, E. Stafne, (Entomology) A. Sial, D. Pfeiffer, R. Bessin, and (Vertebrates) D. Lockwood. 2023. 2023 Southeast Regional Organic Blueberry Pest Management Guide. Southeastern Small Fruit Consortium. (https://extension.uga.edu/publications/detail.html?number=AP125-3)

Pfeiffer, D. G. 2020. Identification and management of spotted-wing drosophila in Virginia berry crops. Va. Coop. Ext. Publ. ENTO-387NP. 3 p. https://www.pubs.ext.vt.edu/ENTO/ENTO-387/ENTO-387.html.

Hickey C. C., B. Blaauw, P. Brannen, D. Pfeiffer, M. Nita, M. Hoffmann and B. Sastre. 2019. Spanish Series: Manejo del Viñedo [Viticulture Management]. University of Georgia Extension Circular 1151-SP.

Sastre, B., E. Day, D. Pfeiffer, T. Dellinger and M. Sutphin. 2019. Ciclo de vida en Virginia de spotted lanternfly (mosca de alas manchada). Va. Coop. Ext. Pub. ENTO 320NP. 1 p. https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/ENTO/ento-320/ENTO-320.pdf

Day, E., D. Pfeiffer, T. Dellinger, M. Sutphin and B. Sastre. 2019. Spotted lanternfly life cycle in Virginia. Va. Coop. Ext. Pub. ENTO-321. 1 p. https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/ENTO/ento-268/ENTO-321.pdf

Pfeiffer D. G., E. R. Day, T. Dellinger, A. Dechaine*, M. Sutphin. 2019. Spotted lanternfly in Virginia vineyards: Lycorma delicatula (White) (Hemiptera: Fulgoridae). Va. Coop. Ext. Publ. ENTO-323NP. 2p. https://www.pubs.ext.vt.edu/ENTO/ENTO-323/ENTO-323.html

Pfeiffer D. G., E. R. Day, T. Dellinger, A. Dechaine*, M. Sutphin and B. Sastre. 2019. Mosca linterna con manchas (Spotted Lanternfly) en viñedos de Virginia: Lycorma delicatula (White) (Hemiptera: Fulgoridae). Va. Coop. Ext. Pub. ENTO-323S. 2 p. https://www.pubs.ext.vt.edu/ENTO/ENTO-323S/ENTO-323S.html

Dechaine, A.*, E. Day, D. Pfeiffer, and M. Sutphin. 2019. Residential control for spotted lanternfly (SLF) in Virginia. Va. Coop. Ext. Publ. ENTO-322NP. 2 p. https://www.pubs.ext.vt.edu/ENTO/ENTO-322/ENTO-322.html

Dechaine, A.*, E. Day, D. Pfeiffer, M. Sutphin and B. Sastre. 2019. Control de la mosca linterna con manchas (spotted lanternfly- SLF) en hogares de Virginia. Va. Coop. Ext. Publ. ENTO-322S. 2 p. https://www.pubs.ext.vt.edu/ENTO/ENTO-322S/ENTO-322S.html

Pfeiffer, D. G., E. R. Day and T. A. Dellinger. 2018. Spotted lanternfly, Lycorma delicatula (White) (Hemiptera: Fulgoridae). Va. Coop. Ext. Publ. ENTO-180NP. 2 p. (https://pubs.ext.vt.edu/ENTO/ENTO-180/ENTO-180.html) (enhanced electronic version: http://digitalpubs.ext.vt.edu/vcedigitalpubs/9322249259597133/MobilePagedReplica.action?pm=1&folio=1#pg1)

Day, E., D. Pfeiffer, T. Dellinger, and C. Bergh. 2018. Pest Alert: Spotted lanternfly Lycorma delicatula. Va. Coop. Ext. Fact Sheet. Publ. ENTO-265NP. 2pp.

Teaching Activities

Entomology 5214, "Arthropod Pest Management". Graduate. Fall semesters, even years, since 2004. 3 cr. (Fall 2020: CRN 91001)

Entomology 4254, "Insect Pest Management". Undergraduate.  Spring semesters, starting in 2004. 3 cr. (Spring 2020: CRN 14685 with Monday lab; CRN 14686 with Wednesday lab)

Entomology 5234, "Managing Arthropod Pests". Graduate. On-line. Spring, even years. Summer, odd years (12-week course; summer I, II). 3 cr.(CRN Spring 2020: 19641
Entomology 5114, "Insect Structure and Function". Fall semesters, odd years, since 1995. 3 cr.(CRN Fall 2019: CRN 90060)

Graduate Students