Entomology: Personnel
Entomology Faculty
Michael D. Toews (CV)Assistant Professor of Entomology Contact InformationAddress: Department of Entomology Phone: 229-386-3149 |
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Research Overview
I direct an applied research program aimed at developing ecologically based strategies for sustainable management of stink bugs in the cotton agroecosystem. The program integrates elements of classical insect behavior, sampling and monitoring, population ecology, basic biology, and traditional pest management to meet the needs of Georgia cotton growers. We are currently focusing on characterizing insect movement at local and landscape levels with the goal of developing better monitoring tools and procedures.
Previous Presentations
Stink bug movement into Georgia cotton fields
A comparison
of sampling techniques for stink bugs in cotton
Performance
of seed treatments for early season thrips management
Distribution
of phytophagous stink bugs in Georgia cotton fields
Rapid
assessment of insect fragments in flour
Graduate Student Recruitment
Lab Personnel
J. David Griffin, Research Technician II (dlk@uga.edu)
Jessica
Corbett, Student Worker (jcorbett@uga.edu)
Blake
Crabtree, Student Worker (jcrabtre@uga.edu)
Seth
Hamer, Student Worker (rhamer@stallions.abac.edu)
Project Pictures
Refereed Journal Articles
Toews, M. D., J. Perez-Mendoza, J. E. Throne, F. E. Dowell, E. B. Maghirang,
F. H. Arthur and J. F. Campbell. 2007. Rapid assessment of insect
fragments in flour milled from wheat infested with known densities of
immature and adult Sitophilus oryzae (L.) (Coleoptera: Curculionidae).
J. Econ. Entomol. 100: 1714-1723.
Subramanyam, Bh., M.D. Toews, K.E. Ileleji, D.E. Maier, G.D. Thompson, and T.J.
Pitts. 2007. Evaluation of spinosad as a grain protectant on three Kansas farms.
Crop Protection. 26: 1021-1030.
Toews, M.D., J.F. Campbell, F.H. Arthur, and S.B. Ramaswamy. 2006. Outdoor flight
activity and immigration of Rhyzopertha dominica into seed wheat warehouses.
Entomologia Experimentalis et Applicata 121: 73-85.
Toews, M.D., J.F. Campbell, F.H. Arthur. 2006. Temporal Dynamics and Response
to Fumigation of Stored-Product Coleoptera in a Grain Processing Facility. Journal
of Stored Product Research. 42:480-498.
Toews, M.D., T.C. Pearson, and J.F. Campbell. 2006. Imaging and automated detection
of Sitophilus oryzae L. (Coleoptera: Curculionidae) pupae in hard red
winter wheat. Journal of Economic Entomology 99:583-592.
Toews, M.D., J.F. Campbell, F.H. Arthur, and M. West. 2005. Monitoring Tribolium
castaneum (Herbst) (Coleoptera: Tenebrionidae) in pilot- scale warehouses
treated with residual applications of (S) hydroprene and cyfluthrin. J. Econ.
Entomol. 98: 1391-1398.
Edde, P.A.; T.W. Phillips, and M.D. Toews. 2005. Responses of Rhyzopertha
dominica (Coleoptera: Bostrichidae) to its aggregation pheromones as influenced
by trap design, trap height, and habitat. Environ. Entomol. 34: 1549-1557.
Toews, M.D., T.W. Phillips, and M.E. Payton. 2005. Estimating populations of
grain beetles using probe traps in wheat-filled concrete silos. Environ. Entomol.
34: 712-718.
Toews, M.D., F.H. Arthur, and J.F. Campbell. 2005. Role of food and structural
complexity on capture of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)
in simulated warehouses. Environ. Entomol. 34: 164-169.
Huang, F., Bh. Subramanyam, and M.D. Toews. 2004. Susceptibility of laboratory
and field strains of four stored-product insect species to spinosad. J. Econ.
Entomol.97: 2160-2167.
Toews, M.D., and Bh. Subramanyam. 2004. Survival of stored-product insect natural
enemies in spinosad-treated wheat. J. Econ. Entomol. 97: 1174-1180.
Toews, M.D., Bh. Subramanyam, and J.M. Rowan. 2003. Knockdown and mortality of
eight stored-product beetles exposed to four surfaces treated with spinosad.
J. Econ. Entomol. 96: 1967-1973.
Toews, M.D., and Bh. Subramanyam. 2003. Contribution of contact toxicity and
wheat condition to mortality of stored-product insects exposed to spinosad. Pest
Manag. Sci. 59: 538-544.
Toews, M.D., T.W. Phillips, and D. Shuman. 2003. Electronic and manual monitoring
of Cryptolestes ferrugineus (Stephens) (Coleoptera: Laemophloeidae)
in stored wheat. J. Stored Prod. Res. 39: 541-554.
Toews, M.D., and T.W. Phillips. 2002. Factors affecting capture of Cryptolestes
ferrugineus (Coleoptera: Laemophloeidae) in traps placed in stored wheat.
J. Econ. Entomol. 95: 200-207.
Toews, M.D., T.W. Phillips, and G.W. Cuperus. 2001. Effects of wheat cultivar
and temperature on suppression of Rhyzopertha dominica (Coleoptera:
Bostrichidae) by the parasitoid Theocolax elegans (Hymenoptera: Pteromalidae).
Biological Control 21: 120-127.
Toews, M.D., G.W. Cuperus, and T.W. Phillips. 2000. Susceptibility of eight U.S.
wheat cultivars to infestation by Rhyzopertha dominica (Coleoptera:
Bostrichidae). Environ. Entomol. 29: 250-255.
Submitted Publications
Toews, M.D., F.H. Arthur, and J.F. Campbell. Monitoring flour beetles in pilot-scale warehouses treated with β-cyfluthrin: are residual insecticides and trapping compatible? Bulletin of Entomological Research. (submitted December 07).
Jia, F., M.D. Toews, J.F. Campbell, and S.B. Ramaswamy. Survival and reproduction of Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) on flora associated with native habitats in Kansas. Journal of Stored Products Research. (submitted August 07).
Nansen, C., P. Flinn, D. Hagstrum, M.D. Toews, and W.G. Meikle. Interspecific relationships among stored grain beetles. Population Ecology. (submitted July 07).
Other Publications
Toews, M.D., J. Greene, F.P.F. Reay-Jones, and R.B. Reeves. 2008. A comparison of sampling techniques for stink bugs in cotton. In Proceedings of the Beltwide Cotton Conferences, January 8-11, Nashville, TN, National Cotton Council of America. In Press.
Campbell, J.F., M.D. Toews, and F.H. Arthur (in press). Evaluating treatment efficacy in commercial food facilities: insights gained from small-scale simulated warehouse experiments. In: Integrated Protection of Stored Products: Proceedings of the Meeting at Poznan (Poland) August 19-22, 2007. IOBC wprs Bulletin.
Campbell, J.F., G.P. Ching’oma, M.D. Toews, and S.B. Ramaswamy. 2006. Spatial distribution and movement patterns of stored-product insects. In Proceedings of the 9th International Working Conference on Stored Product Protection. 15-18 October. Campinas, Sao Paulo, Brazil, pp361-370.
Toews, M.D., and J.F. Campbell. 2006. Stick’em at the source. Association of International Bakers (AIB) Quarterly. Winter: 6-8, 13.
Toews, M.D., J.F. Campbell, and F.H. Arthur. 2006. Efficacy of aerosols for managing the red flour beetle. Proceeding of the Annual International Research Conference on Methyl Bromide Alternatives and Emissions Reductions, November 6-9, 2006. In press.
Campbell, J.F, and M. D. Toews. 2005. Identify the source. Association of International Bakers (AIB) Quarterly. Fall: 12-13.
Subramanyam, Bh., F. Huang, M. Toews, T. Pitts, and G. D. Thompson. 2004. Spectrum of activity of spinosad against stored-product insects. In Proceedings of the International Quality Grains Conference, A global symposium on quality-assured, traceable and biosecure grains and oilseeds for the 21st century, 19-22 July 2004, Indianapolis, Indiana.
Toews, M.D., Bh. Subramanyam, and R. Roesli. 2002. Development and validation of sequential sampling plans for Sitophilus species associated with pet specialty stores. In P.F. Credland, D.M. Armitage, C.H. Bell, P.M. Cogan, and E. Highley (eds.) Advances in Stored Product Protection, Proceedings of the 8th International Working Conference on stored Product Protection, 22-26 July 2002, York, UK, CAB International, Wallingford, Oxon, UK.
Subramanyam, Bh., M.D. Toews, and L. Fang. 2002. Spinosad: an effective replacement for organophosphate grain protectans. In P.F. Credland, D.M. Armitage, C.H. Bell, P.M. Cogan, and E. Highley (eds.) Advances in Stored Product Protection, Proceedings of the 8th International Working Conference on stored Product Protection, 22-26 July 2002, York, UK, CAB International, Wallingford, Oxon, UK.
Toews, M.D., and Bh. Subramanyam. 2002. Sanitation in grain storage and handling, pp. 481-497. In Y.H. Hui, B.L. Bruinsma, J.R. Gorham, W. Nip, P.S. Tong, and P. Ventresca (eds.), Food Plant Sanitation. Marcel Dekker, Inc., New York.
Noyes, R.T., J. Subbiah, J.T. Criswell, T. Phillips, and M. Toews. 2001. Phosphine fumigation failures in concrete silos in the southwestern U.S.A., pp 483-495. In E.J. Donahaye, S. Navarro, and J.G. Leesch (eds.), Proc. Int. Conf. Controlled Atmosphere and Fumigation in Stored Products, Fresno, CA. 29 Oct. –3 Nov. 2000, Executive Printing Services, Clovis, CA, USA.
Phillips, T.W., C.W. Doud, M.D. Toews, C. Reed, D. Hagstrum, and P. Flinn. 2001. Trapping and sampling stored-product insects before and after commercial fumigation treatments, pp 685-696. In E.J. Donahaye, S. Navarro, and J.G. Leesch (eds.), Proc. Int. Conf. Controlled Atmosphere and Fumigation in Stored Products, Fresno, CA. 29 Oct. –3 Nov. 2000, Executive Printing Services, Clovis, CA, USA.
Toews, M.D., G.W. Cuperus and T.W. Phillips. 1998. Decrease in population size of Rhyzopertha dominica (Coleoptera: Bostrichidae) at different temperatures in divergent wheat cultivars by the parasitoid Theocolax elegans (Hymenoptera: Pteromalidae), pp. 1231-1236. In J. Zuxun, L. Quan, L. Yongsheng, T. Xianchang, and G. Langhua (eds.), Proceedings of the 7th International Working Conference on Stored-product Protection, 14-19 October 1998, Beijing, China. Sichuan Publishing House of Science and Technology, Chengdu, Sichuan, People’s Republic of China.