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Robert L. Koch

Mailing address:

Education:

Ph.D. Entomology, University of Minnesota, 2005

B.A. Biology, Saint John's University, 1999

Current CV (PDF format)

Research interests:

My research interests revolve around Integrated Pest Management, Invasive Species, and Risk Assessment.   I am currently a Postdoctoral Associate in George Heimpel's lab.   My research evaluates the use of a fall-seeded rye cover crop for suppression of an economically significant pest of soybeans, the soybean aphid ( Aphis glycines ).   Much of my previous work was focused on the biology and impacts of an invasive coccinellid, the multicolored Asian lady beetle (Harmonia axyridis).  

Recent publications:

Refereed Journals:

1. Koch, R.L., M.A. Carrillo, E.C. Burkness and W.D. Hutchison. 2006. Observations on the overwintering potential of the striped cucumber beetle (Coleoptera: Chrysomelidae). The Great Lakes Entomologist  (in press).
2. Galvan, T.L., R.L. Koch and W.D. Hutchison. 2006. Toxicity of spinosad and indoxacarb to the multicolored Asian lady beetle (Coleoptera: Coccinellidae) via three routes of exposure. Pest Management Science  (in press).
3. Koch, R.L., R.C. Venette and W.D. Hutchison. 2006. Predicted impact of an invasive generalist predator on monarch butterfly (Lepidoptera: Nymphalidae) populations: A quantitative risk assessment. Biological Invasions  (in press). 
4. Hodgson, E.W., R.L. Koch and D.W. Ragsdale. 2006. Pan trapping for soybean aphid (Homoptera: Aphididae) in Minnesota soybean. Journal Entomological Science  (in press).
5. Carrillo, M.A., R.L. Koch, E.C. Burkness, K. Bennett, W.D. Hutchison and D.W. Ragsdale. 2005. Supercooling point of bean leaf beetle (Coleoptera: Chrysomelidae) in Minnesota and a revised predictive model for survival at low temperatures. Environmental Entomology 34(6): 1395-1401.
6. Galvan, T.L. R.L. Koch and W.D. Hutchison. 2005. Effects of spinosad and indoxacarb on survival, development and reproduction of the multicolored Asian lady beetle (Coleoptera: Coccinellidae). Biological Control 34(1): 108-114. 
7. Koch, R.L., E.C. Burkness, W.D. Hutchison and T. Rabaey. 2005. Efficacy of systemic insecticide seed treatments for protection of early-growth stage snap beans from bean leaf beetle (Coleoptera: Chrysomelidae) foliar feeding. Crop Protection 24(8): 734-742. 
8. Galvan, T.L., R.L. Koch and W.D. Hutchison. 2005. Toxicity of commonly used insecticides in sweet corn and soybean to the multicolored Asian lady beetle (Coleoptera: Coccinellidae). Journal of Economic Entomology 98(3): 780-789.
9. Koch, R.L., R.C. Venette and W.D. Hutchison. 2005. Influence of alternate prey on predation of monarch butterfly (Lepidoptera: Nymphalidae) larvae by the multicolored Asian lady beetle (Coleoptera: Coccinellidae). Environmental Entomology 34(2): 410-416.
10. Koch, R.L., M.A. Carrillo, R.C. Venette, C.A. Cannon and W.D. Hutchison. 2004. Cold hardiness of the multicolored Asian lady beetle (Coleoptera: Coccinellidae). Environmental Entomology 33(4): 815-822. 
11. Koch, R.L., E.C. Burkness, S.J. Wold Burkness and W.D. Hutchison. 2004. Phytophagous preferences of the multicolored Asian lady beetle (Coleoptera: Coccinellidae) to autumn ripening fruit. Journal of Economic Entomology 97(2): 539-544.
12. Koch, R.L., W.D. Hutchison and R.C. Venette. 2004. Non-target effects of the multicolored Asian lady beetle (Coleoptera: Coccinellidae): Case study with the monarch butterfly (Lepidoptera: Nymphalidae). American Entomologist 50(3): 155-156.
13. M.A. Carrillo, Koch, R.L., R.C. Venette, C.A. Cannon and W.D. Hutchison. 2004. Response of the multicolored Asian lady beetle (Coleoptera: Coccinellidae) to low temperatures: Implications for overwintering. American Entomologist 50(3): 157-158.
14. Koch, R.L., E.C. Burkness and W.D. Hutchison. 2004. Confirmation of bean leaf beetle, Cerotoma trifurcata, feeding on cucurbits. Journal of Insect Science 4(5): 6pp. http://www.insectscience.org/4.5/
15. Koch, R.L. 2003. The multicolored Asian lady beetle, Harmonia axyridis: A review of its biology, uses in biological control, and non-target impacts. Journal of Insect Science 3(32): 16pp.   http://www.insectscience.org/3.32/
16. Koch, R.L., W.D. Hutchison, R.C. Venette and G.E. Heimpel. 2003. Susceptibility of immature monarch butterfly, Danaus plexippus (Lepidoptera: Nymphalidae: Danainae), to predation by Harmonia axyridis (Coleoptera: Coccinellidae). Biological Control 28(2): 265-270.
17. Koch, R.L. and W.D. Hutchison. 2003. Phenology and blacklight trapping of the multicolored Asian lady beetle (Coleoptera: Coccinellidae) in a Minnesota agricultural landscape. Journal of Entomological Science 38(3): 477-480.
18. Koch, R.L., W.D. Hutchison and R.C. Venette. 2003. Survival of monarch butterfly, Danaus plexippus (Nymphalidae), larvae on milkweed near Bt cornfields. Journal of the Lepidopterists’ Society 57(2): 92-99.
    Featured in: Dahlem, G.A. 2003. Research Briefs: Summaries of recent insect- or arthropod-related literature of interest to entomologists. American Entomologist 49(4): 235.
19. Koch, R.L., E.C. Burkness and W.D. Hutchison. Spatial distribution and fixed-precision sampling plans for the ladybird Harmonia axyridis in sweet corn. BioControl  (submitted).

Book Chapters:

1. Hutchison, W.D., R.L. Koch and S.J. Wold. 2006. Coccinellids in Alfalfa. In: W. Lamp (Ed.), Handbook of Forage Insects. Entomological Society of America.   (in press).