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Ralph
W. Howard
Education B.S. 1965 Chemistry Centenary College of Louisiana M.S. 1971 Chemistry University of Arkansas Ph.D. 1974 Chemistry University of Arkansas Professional Experience
Research Responsibility: Chemical, behavioral and physiological ecology. I identify, characterize and quantify chemical factors that influence pest populations and their parasites, predators and entomopathogens in the grain marketing system, evaluate the effects of bioactive agents on insect biochemistry and physiology, and use the knowledge obtained to design novel insect control techniques. Selected and Relevant Publications Howard, R.W., J.E. Baker. 1999. Finding the needle in the haystack: Using parasitic wasps to kill hidden stored-grain pests. Resource. 7-8. Howard, R.W., Charlton, M. and Charlton, R.E. 1998. Host-Finding, host-recognition, and hostacceptance behavior of Cephalonomia tarsalis (Hymenoptera: Bethylidae). Ann. Entomol. Soc. Am. 91(6):879-889. Howard,R.H. 1998. Ontogenetic, Reproductive, and Nutritional Effects on the Cuticular Hydrocarbons of the Host-Specific Ectoparasitoid Cephalonomia tarsalis (Hymenoptera: Bethylidae). Ann. Entomol. Soc. Am. 91(1): 101-112. Howard, R., and Infante, F. 1996. Cuticular hydrocarbons of the host-specific ectoparasitoid Cephalonomia stephanoderis Miller, J.S., Howard, R.W., Nguyen, T., Nguyen, A., Rosario, R.M.T., Stanley-Samuelson, D.W. 1996. Eicosanoids mediate nodulation responses to bacterial infections in larvae of the tenebrionid beetle, Zophobas atratus. J. Insect Physiol. 42(1): 3-12. Howard, R.W., Howard, C.D., and Colquhoun, S. 1995. Ontogenetic and environmentally induced changes in cuticular hydrocarbons of Oryzaephilus surinamensis (Coleoptera: Cucujidae). Ann. Entomol. Soc. Am. 88(4): 485-495. |
