Dr. Mark VanGessel

Assistant Professor and Extension Specialist
Department of Plant and Soil Sciences
College of Agricultural Sciences
University of Delaware

Mark J. VanGessel, Ph.D., North Carolina State University,
Assistant Professor/Extension Specialist, Weed/Crop Management.

Extension Emphasis

Development of integrated weed management systems for agronomic crops which consider efficiency and impact on entire farming operations.

Research Interests

Dr. VanGessel's research interests focuses on weed biology as it relates to weed management. Specific areas of emphasis are: influence of seed production on weed seed bank dynamics; interaction of weeds with plant pathogens and pest insects; and growth characteristics of troublesome weed species.

Recent Publications

• VanGessel, M.J. and P. Westra. Economics and efficacy of postemergence spurred anoda (Anoda cristata) control in pinto beans (Phaseolus vulgaris). Weed Technology. Accept for Publication.
• VanGessel, M.J. 1995. Successes of integrated weed management - a symposium. Weed Science 44:408.
• VanGessel, M.J., E.E. Schweizer, D.W. Lybecker, and P. Westra. 1995. Integrated weed management systems for irrigated corn (Zea mays) production in Colorado - a case study. Weed Science 44:423-428.
• VanGessel, M.J., E.E. Schweizer, D.W. Lybecker, and P. Westra. 1995. Compatibility and efficiency of in-row cultivation for weed management in corn (Zea mays). Weed Technology 9:754-760.
• VanGessel, M.J., L. Wiles, E.E. Schweizer, and P. Westra. 1995. Weed control efficacy and pinto bean (Phaseolus vulgaris) tolerance to early season mechanical weeding. Weed Technology 9:531-534.
• VanGessel, M.J., E.E. Schweizer, K. Garrett, and P. Westra. 1995. Influence of weed density and distribution on corn (Zea mays) yield. Weed Science 43:215-218.
• VanGessel, M.J. and H.D. Coble. 1993. Maize dwarf mosaic virus severity is reduced when johnsongrass is controlled with a postemergence herbicide. Weed Science 41:262-268.
• VanGessel, M.J. and H.D. Coble. 1993. Postemergence control of johnsongrass and its effect on maize dwarf mosaic virus incidence and vectors in corn. Plant Disease 77:613-618.
• VanGessel, M.J. and H.D. Coble. 1993. Effect of nitrogen and moisture stress on severity of maize dwarf mosaic virus infection in corn seedlings. Plant Disease 77:489-491.
• VanGessel, M.J. and K.A. Renner. 1990. Redroot pigweed (Amaranthus retroflexus) and barnyardgrass (Echinochloa crus-galli) interference in potatoes (Solanum tuberosum). Weed Science 38:338-343.
• VanGessel, M.J. and K.A. Renner. 1990. Effect of soil type, hilling time, and weed interference on potato (Solanum tuberosum) development and yield. Weed Technology 4:299-305.

Phone: 302/856-7303
Fax: 302/856-1845

EMail: mjv@udel.edu

University of Delaware
Res. and Educ. Center
Rd. 6, Box 48
Georgetown, DE 19947