Ronald Hammond

Ronald Hammond
Faculty Emeritus
120 Thorne, 1680 Madison Avenue Wooster, OH 44691
Areas of expertise: 

Area of expertise: Field Crop Insects

Research area: 

I conduct applied research and carry out extension efforts on insect and other invertebrate pests of all Ohio’s field and forage crops, including serving as the primary resource person in the U.S. in field crop slug management.  Primary efforts, along with slugs, are towards management of corn rootworms with transgenic crops, seedcorn maggots in corn and soybean, and soybean aphid and stink bug management in soybeans.  

Agronomic Crops Insects Website

Extension and Research; Field Crop Insects; IPM; Slugs.

Signature areas: Food Security, Production, and Human Health; Environmental Quality and Sustainability

  • Field Crop Entomologist for Extension and Research
  • Ph.D. 1979 Iowa State University

I am a field crop extension and research entomologist for the state of Ohio.  My research interests are in the area of Integrated Pest Management, with emphasis on arthropods and other invertebrate pests in field crops.  I currently teach a graduate course at The Ohio State University in Philosophy of Integrated Pest Management. 

Recent Publications:


Hammond, R. B., and R. A. Byers.  2002.  Agriolimacid and arionid as pests slugs in conservation tillage soybean and corn cropping in North America, pp 301-314,  In Molluscs as Crop Pests.  G. M. Barker, ed.  CABI Publishing.  

Hammond, R. B.  2002.  Strategy, pp. 802-804, In Encyclopedia of Pest Management.  D. Pimental, ed.   Marcel Dekker, Inc.  Both print and web site available. for encyclopedia; 

Thomison, P., P. Lipps, R. Hammond, R. Mullen, and B. Eisley.  2005.  Corn Production.  In Ohio Agronomy Guide, Bull. 472.  OSUE.

Hammond, R. B.  2007.  Caterpillars.  In Handbook of Forage and Rangeland Insects.  Lamp, W.O., R. Berberet, L. Higley, and C. Baird (eds.). Entomological Society of America, Lanham, MD, APS Press

DiFonzo, C. D., and R. Hammond.  2008.  Range expansion of western bean cutworm, Striacosta albicosta(Noctuidae), into Michigan and Ohio. Online. Crop Management doi:10.1094/CM-2008-05XX-01-BR.

Kang, S. T., M. A. R. Mian, and R. B. Hammond.  2008.  Soybean aphid resistance in PI 243540 is controlled by a single dominant gene. Crop Sci. 48:1744-1748.

Mian, M. A. R., S. T., Kang, S. E. Beil, R. B.Hammond.  2008.  Genetic linkage mapping of the soybean aphid resistance gene in PI 243540. Theor. Appl. Genet. 117:955-962.

Derksen, R. C., H. Zhu, H. E. Ozkan, R. B. Hammond, A. E. Dorrance, and A. L. Spongberg.  2008.  Determining the influence of spray quality, nozzle type, spray volume, and air-assisted application strategies on deposition of pesticides in soybean canopy.  Transactions of the ASABE.  51(5): 1529-1537.

Ackley, B., B. Bloetscher, A. E. Dorrance, J. B. Eisley, R. B. Hammond, E. M. Lentz, P. A. Paul, M. M. Loux, A. P. Michel, D. R Mills, R. W. Mullen, H. E. Ozkan, R. M. Sulc, N. J. Taylor, P. R. Thomison.  2010.  Corn, Soybean, Wheat, and Alfalfa Field Guide.  OSUE.

Dorrance, A.E., Cruz, C., Mills, D., Bender, R., Koenig, M., LaBarge, G., Leeds, R., Mangione, D., McCluer, G., Ruhl, S., Siegrist, H., Sundermeier, A., Sonnenberg, D., Yost, J., Watters, H., Wilson, G., and Hammond, R. B.  2010. Effect of Foliar Fungicide and Insecticide Applications on Soybean in Ohio.  Plant Health Progress.  doi:10.1094/PHP-2010-0122-01-RS

Redinbaugh. M. G., J E. Molineros, J. Vacha, S. A. Berry, R. B. Hammond, L. V. Madden and A. E. Dorrance. 2010.  Bean Pod Mottle Virus Movement in Insect Feeding Resistant Soybeans.  Plant Dis. 94:265-270.



Obopile, M., R. B. Hammond, and P. R. Thomison.  2012.  Interaction among planting dates, transgenic maize, seed treatment, corn rootworm damage and grain yield.    J. Appl. Entomol.  doi: 10.1111/j.1439-0418.2012.01716.x

Obopile, M., and R. B. Hammond.  2012.  Maize phonological stages influence within the field distribution of corn rootworm (Coleoptera: Chrysomelidae) and oviposition.  J. Ent. Res.  36:101-108.

Obopile, M., R. B. Hammond, and P. R. Thomison.  2012.  Maize-planting date interaction and effect of Bt maize on European corn borer (Ostrinia nubilalis (Hubner) (Coleoptera: Crambidae) damage.  S. African J. Plant Soil 29:109-115.