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I conduct IPM research that is complementary and supportive of the educational and productivity needs of vegetable growers and processors in the upper midwest. Both basic and applied research is done to develop and implement integrated pest management (IPM) programs for vegetable crops, including: sweet corn, cabbage, cucumber, and carrot. Specific areas of interest include the integration of plant resistance with Bacillus thuringiensis (Bt) for O. nubilalis management in sweet corn; timing of Bt and conventional insecticide applications; development and validation of easy-to-use sequential sampling plans for insect pests; development of hybrid-and growth stage -specific action thresholds for O. nubilalis in sweet corn; development of improved pheromone traps for monitoring O. nubilalis moths; use of reduced rates of Bt and native parasitic wasps for management of Lepidopteran pests of cabbage; comparison of aster leafhopper dynamics in organic vs. conventional carrot production systems; comparison of actual vs. simulated defoliation by striped cucumber beetle in pickling cucumber; development of a management model for O. nubilalis in sweet corn; and the development, stability, inheritance and fitness of resistance in O. nubilalis to Bt endotoxins, and related resistance management issues for the deployment of Bt-corn.
With my extension appointment, my primary teaching activity is focused toward growers, consultants, agronomists, and vegetable processing company representatives via educational meetings and workshops, field days, newsletters, educational materials, and this home page. I also participate in our graduate curricula by assisting Dr. Ted Radcliffe with teaching Insect Pest Management (ENT. 5-210), which is also supported by a new web page, Radcliffe's IPM World Textbook. We plan to use this site as an interactive resource for teaching IPM at St. Paul and for "distance-learning" opportunities for students, consultants, agronomists, etc., who may be interested in short courses for continuing education credits (CEUs). Click HERE to find out more about this course.
Hutchison, W.D. & C.D. Campbell. 1994. Economic impact of sugarbeet root aphid (Homoptera: Aphididae) on sugarbeet yield and quality in southern Minnesota. J. Econ. Entomol. 87: 465-475.
Campbell,C.D. & W.D. Hutchison. 1995. Rearing methods and demographic statistics for a subterranean morph of the sugarbeet root aphid (Homoptera: Aphididae). Can. Entomol. 127: 65-77.
Hutchison, W.D. 1994. Sequential Sampling to Determine Population Density (Chapter 10). In L. Pedigo & G.D. Buntin [eds.], Handbook of Sampling Methods for Arthropods in Agriculture, CRC Press, Boca Raton, FL.
Bartels, D.W. & W.D. Hutchison. 1995. On-farm efficacy of aerially applied Bacillus thuringiensis for the European corn borer (Lepidoptera: Pyralidae) and corn earworm (Lepidoptera: Noctuidae) control in sweet corn. J. Econ. Entomol. 88: 380-386.
Bartels, D.W., W.D. Hutchison, V.A. Fritz, & G.R. Klacan. 1995. Effect of Bacillus thuringiensis application interval on European corn borer (Lepidoptera: Pyralidae) control in sweet corn. J. Entomol. Sci. 30: 374-389.
Rinkleff, J. H., W.D. Hutchison, C.D. Campbell, P.C.Bolin, & D.W.Bartels. 1995. Insecticide toxicity in European corn borer (Lepidoptera: Pyralidae): ovicidal activity and residual mortality on neonates. J. Econ. Entomol. 88: 246-253
Bolin, P.C., W.D. Hutchison, & D.A. Andow. 1995 Selection for resistance to Bacillus thuringiensis endotoxin in a Minnesota population of European corn borer. (Abstract). 28th Annual meeting of Soc. Invert. Pathology, Cornell Univ., Ithaca, NY. July.
Bolin, P.C., W.D. Hutchison, & D.W. Davis. 1996. Resistant hybrids and Bacillus thuringiensis for management of European corn borer (Lepidoptera: Pyralidae) in sweet corn. J. Econ. Entomol. 89: 82-91.
Bolin, P.C., W.D. Hutchison, & D.A. Andow. Selection for resistance to Bacillus thuringiensis endotoxins in a European corn borer (Lepidoptera: Pyralidae) population with limited genetic diversity. J. Econ. Entomol. (in prep.) (presented at ESA Symposium, Annual Meeting, Las Vegas, NV, Dec. 1995).
Bolin, P.C., W.D. Hutchison & J. Pershing. Whorl-stage and leaf-disk rating systems for European corn borer (Lepidoptera: Pyralidae) damage on transgenic corn exspressing Bacillus thuringiensis toxins. J. Entomol. Soc. (in prep).
Bartels, D.W., W.D. Hutchison & S. Udayagiri. Pheromone trap monitoring of Z-strain European corn borer (Lepidoptera: Pyralidae): optimum pheromone blend, comparison with blacklight traps, and trap number requirements. J. Econ. Entomol. (submitted 4/96).
Naranjo, S.E. & W.D. Hutchison. Validation of insect sampling plans using a resampling approach: software and analysis. American Entomol. (submitted 4/96).
**CLICK HERE FOR INFO. ABOUT Resampling Software, AND HOW TO ACCESS **
Gingera, G.J., Bh. Subramanyam & W. D. Hutchison. 1993. Insecticides used by Minnesota processors to control European corn borer and corn earworm in sweet corn. Minn. Ext. Service, Public. FO-6322-B. 4pp.
Flood, B., R. Foster & B. Hutchison. 1995. Sweet Corn. In R. Foster & B. Flood [eds.], Vegetable Insect Management with Emphasis on the Midwest. Meister Publishing Co., Willoughby, OH.
Hutchison, B., G. Klacan, & W. Cranshaw. 1995. Green Peas. In R. Foster & B. Flood [eds.], Vegetable Insect Management with Emphasis on the Midwest. Meister Publishing Co., Willoughby, OH.
Grafius, E., & B. Hutchison. 1995. Asparagus. In R. Foster & B. Flood [eds.], Vegetable Insect Management with Emphasis on the Midwest. Meister Publishing Co., Willoughby, OH.
Hutchison, W.D., et al. 1996. Commercial Vegetable Pest Management Production Guide-1996. Minn. Extension Service public., BU-1880, 96 pp.
Mason, C.E., M.E. Rice, D.D. Calvin, J.W. Van Duyn, W.B. Showers, W.D. Hutchison, J.F. Witkowski, R.A. Higgins, D.W. Onstad, & G.P. Dively. 1996. European corn borer ecology and management. N.C. Regional Public., Coop. Ext. Serv., Iowa State University (in press, May, 1996).
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