Individual Listing

Entomology
University of California
Riverside, CA 92521

Morse, Joseph G

Professor of Entomology

College of Natural and Agricultural Sciences

Entomology


Biography

Research Specialization - My program covers both applied and fundamental research dealing with management of pests of subtropical crops, especially pests of citrus such as citrus thrips, Asian citrus psyllid, bean thrips, Fuller rose beetle, and various soft and armored scales, and pests of avocado such as avocado thrips, persea mite, and armored scales. I have an interest in integrated pest management, biological control, parasitoid biology and behavior, insectary rearing of natural enemies, the acute and sub-lethal impact of pesticides on both target pests and non-target organisms, modeling and computer simulation, pesticide resistance, and the management of invasive species. Over the past twenty years, my lab has contributed to the evolution of citrus and avocado pest management in California towards a more integrated approach emphasizing increased monitoring activity, use of economic thresholds and selective pesticides, conservation and augmentation of predators and parasitoids, and post-harvest disinfestation of fruit. I work closely with a number of citrus growers, pest control advisors, University extension agents, and researchers in other Departments on campus in order that our applied research efforts will have applicability to field pest management efforts. I have an interest in international agriculture and have been involved in citrus pest management projects and with researchers in Arizona, Florida, Hawaii, Texas, Argentina, Australia, Brazil, Chile, Cyprus, Egypt, Israel, Japan, Mexico, New Zealand, South Africa, and Spain, and in a 1996 FAO-sponsored analysis of citrus integrated pest management in 13 countries of the Near East. I have worked with the UC Statewide IPM Program (6 years as Associate Director), UC Center for Invasive Species Research (3 years as Director), and with UC's Division of Agriculture and Natural Resources (6 years as Program Leader for Agricultural Policy & Pest Management). I teach a course in Introductory Entomology (Ent 10) and the Evolution section of Introductory Evolution and Ecology (Bio 5C) and enjoy graduate student instruction and interaction (7 M.S. and 8 Ph.D. students have been awarded their degree under my supervision; I currently have 3 Ph.D. students in my lab).

Former Institution

Michigan State University

Degrees

BS Electrical Engineering/Biology 1975

Cornell University

MS Systems Science 1977

Michigan State University

MS Entomology 1978

Michigan State University

PhD Entomology 1981

Michigan State University

Awards

2006 - Art Schroeder Memorial Award, California Avocado Society
2006 - Fellow, American Association for the Advancement of Science
2005 - Award of Excellence, Citrus Research Board


Research Area

Citrus and avocado pest management, biological control, pesticide impacts on natural enemies, pesticide resistance management, applied insect ecology, research on invasive species.

Publications

Recent Journal Publications

Humeres, E. C., J. G. Morse, R. Stouthamer, W. Roltsch, and M. S. Hoddle. 2009. Evaluation of Natural Enemies and Insecticides for Control of Pseudocysta perseae (Hemiptera: Tingidae) on Avocados in Southern California. Florida Entomologist 92: 35-42.

Haviland, D. R., S. M. Rill, and J. G. Morse. 2009. Southern Highbush Blueberries Are a New Host for Scirtothrips citri (Thysanoptera: Thripidae) in California. Florida Entomologist 92: 147-149.

Al-Wahaibi, A. K. and J. G. Morse. 2009. Temporal Distribution of Egg Hatch for Two Homalodisca spp. (Hemiptera: Cicadellidae) Under Constant Temperatures. Florida Entomologist. 92: 156-158.

Krugner, R., M. W. Johnson, R. L. Groves, and J. G. Morse. 2008. Host Specificity of Anagrus epos (Hymenoptera: Mymaridae): A Potential Biological Control Agent of Homalodisca vitripennis (Hemiptera: Cicadellidae). BioControl 53: 439-449.

Rill, S., E. E. Grafton-Cardwell, and J. G. Morse. 2008. Effects of Two Insect Growth Regulators and a Neonicotinoid on Various Life Stages of Aphytis melinus (Hymenoptera: Aphelinidae). BioControl 53: 579-587.

Kapranas, A., P. Pacheco, L. D. Forster, J. G. Morse, and R. F. Luck. 2008. Precise Sex Ratios Manifested by Several Encyrtid Parasitoids of Brown Soft Scale, Coccus heseridum L. (Coccidae: Hemiptera). Behavioral Ecology and Sociobiology 62: 901-912.

Krugner, R., M. W. Johnson, K. M. Daane, and J. G. Morse. 2008. Olfactory Responses of the Egg Parasitoid Gonatocerus ashmeadi Girault (Hymenoptera: Mymaridae) to Host Plants Infested by Homalodisca vitripennis (Germar) (Hemiptera: Cicadellidae). Biological Control 47: 8-15.

Harman, J. A., C. X. Mao, and J. G. Morse. 2007. Selection of Color of Sticky Trap for Monitoring Adult Bean Thrips, Caliothrips fasciatus (Thysanoptera: Thripidae). Pest Management Science 63: 210-216.

Byrne, F. J., N. C. Toscano, A. A. Urena, and J. G. Morse. 2007. Toxicity of Systemic Neonicotinoid Insecticides to Avocado Thrips, Scirtothrips perseae Nakahara (Thysanopera: Thripidae), in Nursery Avocado Trees. Pest Management Science 63: 860-866.

Kapranas, A., J. G. Morse, P. Pacheco, L. D. Forster, and R. F. Luck. 2007. Survey of Brown Soft Scale Coccus heseridum L. Parasitoids in Southern California Citrus. Biological Control 42: 288-299.

Prabhaker, N., J. G. Morse, S. J. Castle, S. E. Naranjo, T. J. Henneberry, and N. C. Toscano. 2007. Toxicity of Seven Foliar Insecticides to Four Parasitoids Attacking Citrus and Cotton Pests. Journal of Economic Entomology 100: 1053-1061.

Rill, S., E. E. Grafton-Cardwell, and J. G. Morse. 2007. Effects of Pyriproxyfen on California Red Scale (Hemiptera: Diaspididae) Development and Reproduction. Journal of Economic Entomology 100: 1435-1443.

Harman, J. A., C. X. Mao, L. J. Robinson, and J. G. Morse. 2007. Evaluation of Two Non-destructive Sampling Methods for Bean Thrips (Thysanoptera: Thripidae) Detection in Navel Oranges. Crop Protection 26: 1747-1754.

Triapitsyn, S. V., V. V. Berezovskiy, M. S. Hoddle, and J. G. Morse. 2007. A Review of the Neartic Species of Erythmelus (Hymenoptera: Mymaridae), With a Key and New Additions to the New World Fauna. Zootaxa 1641: 1-64.

Barry, J. B., S. B. Opp, J. Dragolovich, and J. G. Morse. 2007. Effect of Adult Diet on Longevity of Sterile Mediterranean Fruit Flies (Diptera: Tephritidae). Florida Entomologist 90: 650-655.

Morse, J. G. and M. S. Hoddle. 2006. Invasion Biology of Thrips. Annual Review of Entomology 51: 67-89.

Humeres, E. C. and J. G. Morse. 2006. Resistance of Avocado Thrips (Thysanoptera: Thripidae) to Sabadilla, a Botanically Derived Bait. Pest Management Science 62: 886-889.

Khan, I. and J. G. Morse. 2006. Impact of Citrus Thrips Treatments on the Predatory Mite Euseius tularensis. Journal of Applied Entomology 130: 386-392.

Tollerup, K. E. and J. G. Morse. 2006. The Effect of Horticultural Spray Oil and Surfactants on the Residual Efficacy of Spinosad against Avocado Thrips, Scirtothrips perseae (Thysanoptera: Thripidae). Journal of Agricultural and Urban Entomology 22: 127-131.

Al-Wahaibi, A. K., A. K. Owen, and J. G. Morse. 2005. Description and Behavioural Biology of Two Ufens Species (Hymenoptera: Trichogrammatidae), Egg Parasitoids of Homalodisca Species (Hemiptera: Cicadellidae) in Southern California. Bulletin of Entomological Research 95: 275-288.

Byrne, F. J., N. C. Toscano, A. A. Urena, and J. G. Morse. 2005. Quantification of Imidacloprid Toxicity to Avocado Thrips Scirtothrips perseae Nakahara (Thysanoptera: Thripidae) Using a Combined Bioassay and ELISA Approach. Pest Management Science 61: 754-758.

Humeres, E. C. and J. G. Morse. 2005. Baseline Susceptibility of Persea Mite (Acari: Tetranychidae) to Abamectin and Milbemectin in Avocado Groves in Southern California. Experimental and Applied Acarology 36: 51-59.

Triapitsyn, S. V. and J. G. Morse. 2005. A Review of the Species of Ceranisus Walker (Hymenoptera: Eulophidae) in the New World. Transactions of the American Entomological Society 131: 69-86.

Barry, J. D., T. Blessinger, and J. G. Morse. 2004. Recapture of Sterile Mediterranean Fruit Flies (Diptera: Tephritidae) in California’s Preventative Release Program. Journal of Economic Entomology 97: 1554-1562.

Hoddle, M. S., K. M. Jetter, and J. G. Morse. 2003. The Economic Impact of Scirtothrips perseae Nakahara (Thysanoptera: Thripidae) on California Avocado Production. Crop Protection 22: 485-493.

Schweizer, H., J. G. Morse, and R. F. Luck. 2003. Evaluation of Metaphycus spp. for Suppression of Black Scale (Homoptera: Coccidae) on Southern California Citrus. Environmental Entomology 32: 377-386.

Weppler, R. A., J. G. Morse, and R. F. Luck. 2003. Studies on Rearing Metaphycus helvolus (Hymenoptera: Encyrtidae) for Augmentative Release Against Black Scale (Homoptera: Coccidae) on Citrus in California. Biological Control 28: 118-128.

Al-Wahaibi, A. K. and J. G. Morse. 2003. Homalodisca coagulata (Hemiptera: Cicadellidae) Embryonic Development at Constant Temperatures. Florida Entomologist 86: 477-478.

Tollerup, K. and J. G. Morse. 2003. Evaluation of Phloxine B as a Possible Control Agent Against Citrus Thrips (Thysanoptera: Thripidae). Journal of Economic Entomology 96: 629-635.

Barry, J. D., T. E. Shelly, D. O. McInnis, and J. G. Morse. 2003. Potential for Reducing Overflooding Ratios of Sterile Mediterranean Fruit Flies (Diptera: Tephritidae) with the Use of Ginger Root Oil. Florida Entomologist 86: 29-33.

Barry, J. D., D. O. McInnis, D. Gates, and J. G. Morse. 2003. Effects of Irradiation on Mediterranean Fruit Flies (Diptera: Tephritidae): Emergence, Survivorship, Lure Attraction, and Mating Competition. Journal of Economic Entomology 96: 615-622.

Barry, J. D., L. C. K. Tran, and J. G. Morse. 2003. Mating Propensity of Different Ratios of Male and Female Mediterranean Fruit Flies. Florida Entomologist 86: 225-226.

Barry, J. D., R. I. Vargas, N. W. Miller, and J. G. Morse. 2003. Feeding and Foraging Trials on Spinosad Bait by Wild and Sterile Mediterranean Fruit Flies (Diptera: Tephritidae). Journal of Economic Entomology 96: 1405-1411.

Schweizer, H., R. F. Luck, and J. G. Morse. 2003. Augmentative Releases of Metaphycus sp. nr flavus Against Citricola Scale on Oranges in the San Joaquin Valley, California: Are Early Releases Better than Late Ones? Journal of Economic Entomology 96: 1375-1387.

Schweizer, H., J. G. Morse, R. F. Luck, and L. D. Forster. 2002. Augmentative Releases of a Parasitoid (Metaphycus sp. nr. flavus) Against Citricola Scale (Coccus pseudomagnoliarum) on Oranges in the San Joaquin Valley of California. Biological Control 24: 153-166.

Silvers, C. S., J. G. Morse, and E. E. Grafton-Cardwell. 2002. Quality Assessment of Chrysoperla rufilabris (Neuroptera: Chrysopidae) Producers in California. Florida Entomologist 85: 594-598.

Barry, J. D., R. V. Dowell, and J. G. Morse. 2002. Comparison of Two Sterile Mediterranean Fruit Fly (Diptera: Tephritidae) Strains Released in California’s Preventative Release Program. Journal of Economic Entomology 95: 936-944.

Bernal, J. S., R. F. Luck, J. G. Morse, and M. S. Drury. 2001. Seasonal and Scale Size Relationships Between Citricola Scale (Homoptera: Coccidae) and Its Parasitoid Complex (Hymenoptera: Chalcidoidea) on San Joaquin Valley Citrus. Biological Control 20: 210-221.

Khan, I. and J. G. Morse. 2001. Augmentation of Chrysoperla spp. for Control of Citrus Thrips in Mangos. OnLine Journal of Biological Science 1(3): 136-138.