Department of Entomology
Fruit Research and Extension Center
The Pennsylvania State University
P.O. Box 330
Biglerville, PA 17307-0330

Phone: 717-677-6116 Ext. 5
Fax: 717-677-4112
Email: gxk13@psu.edu

Education:

Ph. D. (1996) Michigan State University
M. Sc. (1986) Agricultural University, Lublin, Poland

Research Activities & Interests:

Integrated pest management in agricultural ecosystems
- Integrated fruit production methods
- Biology and control of tree fruit insect pests
- Pesticide resistance management in agricultural ecosystems
- Phytophagous and predatory mite management in orchard ecosystems
- Insect rearing techniques/laboratory bioassays

Relevant Publications:

Hull, A. L., G. Krawczyk & N. Ellis. 201. Management Tactics for the Oriental Fruit Moth (Grapholita molesta) in Pennsylvania Apple Orchards. Pennsylvania Fruit News, 81(2): 23

Krawczyk, G. 2001. Control of European red mite populations in apple orchards - a demonstrational plot in a commercial apple orchard. Pennsylvania Fruit News. 81(3):

Krawczyk, G, S. Bogash, T. Elkner, M. Hautau, W. Kleiner , J. Mizer, A. Muza, E. Oesterlink and G. Perry... 2001. Monitoring of lepidopteran pests in Pennsylvania fruit orchards - a multi-county orchard demonstration. Pennsylvania Fruit News. 81(3):

Krawczyk, G & G. M. Greene. 2001. The Impact of Pruning, Thinning and the Plant Growth Regulator Apogee on Insect Pest Populations and Fruit Quality. PA Fruit News. 81(2): 16-22

Krawczyk, G. and L. A. Hull. 1999. Monitoring for resistance to commonly used insecticides in Oriental fruit moth populations from Pennsylvania commercial fruit orchards. Proceedings of the 75 Ann. Cumberland-Shanandoah Fruit Workers Conference, Winchester, VA. Nov 18-19.

Bush, M. R., G. Krawczyk, and M. E. Whalon. 1996. Updates on fruit insect control. 126 th Annual Report of the Secretary of The State Horticultural Society of Michigan. 126: 22-25

Krawczyk, G. & J. W. Johnson. 1996. Occurrence and pest status of lesser appleworm Grapholita prunivora Walsh in Michigan apple orchards. IOBC/WPRS Bulletin 19(4): 356-357.

Krawczyk, G., M. R. Bush, and M. E. Whalon. 1996. Alternative fruit pest management systems in Michigan. 126th Annual Report of the Secretary of The State Horticultural Society of Michigan 126: 141-143.