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 based on developing ecologically based strategies for sustainable pest management of cotton insect pests. Our primary model system is the southern green stink bug, but we also work with other stink bugs, thrips, whiteflies, and the bollworm/tobacco budworm complex. Current research projects include aspects of insect behavior, sampling, monitoring, population ecology, basic biology, and movement within the farmscape.
Extension Overview
I also have a minor Extension appointment to address grain and legume storage issues and insect management in food processing facilities.
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
Applied
Research in Food Processing Ecosystems
Cotton IPM Tactics at the Farmscape Level
Stored Product Extension
Stored Product Pesticide Recommendations
Personnel
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Summer 2009 |
Post Docs
John Herbert (johnherb@uga.edu)
Graduate Student Committees
Ta-I Huang (dai7030@uga.edu)
Richard Reeves (rbreeve@clemson.edu)
Graduate Student Recruitment
Lab Personnel
J. David Griffin, Research Technician II (dlk@uga.edu)
Alton Hudgins, Summer Technician (ahudgins@abac.edu)
Jessica
Corbett, Student Worker (jcorbett@uga.edu)
Blake
Crabtree, Student Worker (jcrabtre@uga.edu)
Project Pictures
GIFT Teachers
Anna Perrin (aperrin@mail.tiftschools.com)
Final Project
Competitive Grant Funding (last five years)
Toews, M. D., M. A. Haidekker, and J. Xia. 2009. Rapid detection of damaged
cotton bolls using fluorescence. Cotton Incorporated. ($14,000).
Tubbs, R. S., M. D. Toews, W. D. Shurley, A. R. Ziehl, G. H. Harris, and R. D.
Lee. 2009. Nutrient cycling and cover crop decomposition in strip-till and conventional
cotton tillage systems. Georgia Cotton Commission. ($20,000).
Li, C. and M. D. Toews. 2009. Development of a rapid sensing technology for detection
of stink bug infested (internally damaged) cotton bolls. Georgia Cotton Commission.
($17,252).
Reay-Jones, F.P.F., J. K. Greene, M. D. Toews, and C. Carpio. 2009. Farmscape
ecology of stink bugs and the development of environmentally friendly control
strategies. USDA CSREES Southern Region IPM Center ($153,946).
Toews, M. D., J. R. Ruberson, and P. M. Roberts. 2008. Cotton insect management
and quality. USDA/CSREES Special Research Grants Program ($343,542).
Herbert, A., J. Bacheler, E. Blinka, and M. D. Toews. 2008. Refinement and validation
of a new time-saving technique for Hemipterous pests of cotton based on external
feeding symptoms. USDA CSREES Southern Region IPM Center ($25,000).
Toews, M. D. 2008. Marking methods for stink bugs (yr 2). Cotton Incorporated.
($19,895).
Toews, M. D. 2008. Optimization of sampling methods for stink bugs (yr 2). Georgia
Cotton Commission ($17,500).
Ruberson, J. R.., P. M. Roberts, and M. Toews. 2008. Insecticide
resistance monitoring of Heliothines in Cotton. Georgia Cotton Commission
and Cotton Incorporated ($22,000).
Pettis, G., M. D. Toews, and J. K. Greene. 2007. Development of a Georgia
PMSP. Southern Region IPM Center. ($5000).
Toews, M. D. 2007. Landscape scale movement of stink bugs. University of Georgia
College of Agriculture and Environmental Sciences ($23,500).
Toews,
M. D. 2007. Marking methods for stink bugs. Cotton Incorporated. ($19,895).
Toews, M. D. 2007. Optimization of sampling methods for stink bugs. Georgia Cotton
Commission ($17,500).
Zhu, K. Y., F. H. Arthur, J. F. Campbell, M. D. Toews, and M. R. Langemeier.
2006. Aerosol applications as a methyl bromide alternative for milling,
processing, and food storage. USDA/CSREES/Methyl Bromide Transitions ($369,181).
Phillips, T. W., F. H. Arthur, J. F. Campbell, M. D. Toews, J.
Criswell, and M. Casada. 2005. Pest management strategies for stored
products: raw grain and value added products. USDA/CSREES/PMAP ($196,205).
Publications
Peer Reviewed Research Publications (last five years)
Toews, M. D. and W. D. Shurley. Crop juxtaposition affects cotton fiber
quality in Georgia farmscapes. J. Econ Entomol. (In press).
Nansen, C., P. Flinn, D. Hagstrum, M. D. Toews, and W. G. Meikle.
Interspecific associations among stored grain beetles. J. Stored
Prod. Res. (In press).
Toews, M. D., E. L. Blinka, J. W. Van Duyn, D. A. Herbert Jr.,
J. S. Bacheler, P. M. Roberts and J. K. Greene. Fidelity of external
boll feeding lesions to internal damage for assessing stink bug
damage in cotton. J. Econ. Entomol. (In press).
Toews, M. D., F. H. Arthur, and J. F. Campbell. 2009. Monitoring
flour beetles in pilot-scale warehouses treated with β-cyfluthrin:
are residual insecticides and trapping compatible? Bulletin of
Entomological Research. 99: 121-129.
Jia, F., M. D. Toews, J. F. Campbell, and S. B. Ramaswamy. 2008.
Survival and reproduction of the lesser grain borer, Rhyzopertha dominica (F.)
(Coleoptera: Bostrichidae) on flora associated with native habitats
in Kansas. Journal of Stored Products Research. 44: 366-372.
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, and 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.
Other Research Publications (last five years)
Roberts, P., M. Toews, B. Freeman, T. Reed. R. Smith, J.
Bacheler, A. Herbert, and J. Greene. 2009. Spider mite-pest status, southeastern
region, pp.1531. In Proceedings of the Beltwide Cotton Conferences,
January 5-8, San Antonio, TX. National Cotton Council of America, Memphis,
TN.
Reeves, R. B., J. K. Greene, F.P.F. Reay-Jones, A. Khalilian,
M. D. Toews, and P. D. Gerard. 2009. Spatial-temporal analysis of stink
bug populations in cotton, pp. 860-863. In Proceedings of the
Beltwide Cotton Conferences, January 5-8, San Antonio, TX. National Cotton
Council of America, Memphis, TN.
Greene, J. K., P. M. Roberts, J. S. Bacheler, M. D. Toews, J.
R. Ruberson, F.P.F. Reay-Jones, D. Robinson, D. W. Mott, T. Walker, C.
Davis, and D. E. Morrison, T. Pegram, and R. Reeves. 2009. Continued evaluation
of internal boll-injury thresholds for stink bugs in the southeast, pp.
1092-1101. In Proceedings of the Beltwide Cotton Conferences,
January 5-8, San Antonio, TX. National Cotton Council of America, Memphis,
TN.
Roberts, P. M., M. Toews, and B. Kemerait. 2009. Impact of early
season thrips control on root development and nematode management, pp.1140. In Proceedings
of the Beltwide Cotton Conferences, January 5-8, San Antonio, TX. National
Cotton Council of America, Memphis, TN.
Toews, M. D., E. Blinka, A. Herbert, J. Bacheler, S. Malone,
J. Van Duyn, P. M. Roberts, J. K. Greene, and W. D. Shurley. 2009. Balancing
sample size, accuracy, and time when monitoring stink bug damage, pp.
1110. In Proceedings of the Beltwide Cotton Conferences, January
5-8, San Antonio, TX. National Cotton Council of America, Memphis, TN.
Blinka, E. L. D. A. Herbert, M. D. Toews, J. S. Bacheler, S.
Malone, and J. W. Van Duyn. 2009. Comparison of two stink bug scouting
techniques in cotton under field conditions, pp1102-1109. In Proceedings
of the Beltwide Cotton Conferences, January 5-8, San Antonio, TX. National
Cotton Council of America, Memphis, TN.
Li, C. and M. Toews. 2009. GC-FID and E-Nose for detection of
stink bug infestation on cotton bolls, pp1117-1121. In Proceedings
of the Beltwide Cotton Conferences, January 5-8, San Antonio, TX. National
Cotton Council of America, Memphis, TN.
Bacheler, J., P. Roberts, J. Greene, D. Mott, J. Van Duyn, A.
Herbert, M. Toews, J. Ruberson, D. Robinson, T. Walker, E. Blinka, D.
Morrison, and T. Pegram. 2009. Use of the dynamic threshold for stink
bug management in the southeast, pp. 1081-1091. In Proceedings
of the Beltwide Cotton Conferences, January 5-8, San Antonio, TX. National
Cotton Council of America, Memphis, TN.
Li, C. and M. D. Toews. 2009. Preliminary study of using a GC-FID
for volatile detection on stink bug infested cotton bolls. Pp. 144-148. In M.
Toews, G. Ritchie & A. Smith (eds.) 2008 Georgia Cotton Research and
Extension Report. UGA/CPES Research Extension Publication No. 6.
Georgia Cooperative Extension, University of Georgia College of Agricultural
and Environmental Sciences, Athens.
Ottens, R. J., J. R. Ruberson, R. M. McPherson, P. M. Roberts,
and M. D. Toews. 2009. Insecticide resistance monitoring in lepidopteran
cotton pests. Pp. 132-143. In M. Toews, G. Ritchie & A. Smith
(eds.) 2008 Georgia Cotton Research and Extension Report. UGA/CPES
Research Extension Publication No. 6. Georgia Cooperative Extension, University
of Georgia College of Agricultural and Environmental Sciences, Athens.
Ruberson, J. R., M. D. Thompson, R. J. Ottens, P. M. Roberts,
S. R Shaw, and M. D. Toews. 2009. Importance of natural enemies for stink
bug control in Georgia. Pp. 113-121. In M. Toews, G. Ritchie & A.
Smith (eds.) 2008 Georgia Cotton Research and Extension Report. UGA/CPES
Research Extension Publication No. 6. Georgia Cooperative Extension, University
of Georgia College of Agricultural and Environmental Sciences, Athens.
Roberts, P. and M. D. Toews. 2009. Evaluation of selected thrips
management programs and the effect of thrips damage on early season root
growth. Pp. 107-112. In M. Toews, G. Ritchie & A. Smith (eds.)
2008 Georgia Cotton Research and Extension Report. UGA/CPES Research
Extension Publication No. 6. Georgia Cooperative Extension, University
of Georgia College of Agricultural and Environmental Sciences, Athens.
Toews, M. D. 2009. Spatial mapping of stink bugs in cotton fields
using three scouting techniques. Pp. 153-157. In M. Toews, G.
Ritchie & A. Smith (eds.) 2008 Georgia Cotton Research and Extension
Report. UGA/CPES Research Extension Publication No. 6. Georgia Cooperative
Extension, University of Georgia College of Agricultural and Environmental
Sciences, Athens.
Toews, M. D. and D. Shurley. 2009. Influence of adjacent crops
on cotton fiber quality with respect to stink bug movement. Pp. 122-127. In M.
Toews, G. Ritchie & A. Smith (eds.) 2008 Georgia Cotton Research
and Extension Report. UGA/CPES Research Extension Publication No.
6. Georgia Cooperative Extension, University of Georgia College of Agricultural
and Environmental Sciences, Athens.
Roberts, P., J. Ruberson, M. Toews, A. Knowlton, J. Bacheler,
D. Mott, D. Morrison, T. Pegram, J. Greene, D. Robinson, T. Walker, and
R. Smith. 2008. Influence of boll feeding bugs on cotton fiber
quality. Pp. 1257, In Proceedings of the Beltwide Cotton
Conferences, January 8-11, Nashville, TN.
Ottens, R. J., J. R. Ruberson, R. M. McPherson, P. M Roberts,
and M. D. Toews. 2008. Insecticide resistance monitoring in lepidopteran
cotton pests. pp. 100-110. In T. Grey, M. Toews, & C. Perry
(eds.) 2007 Georgia Cotton Research and Extension Report. UGA/CPES
Research Extension Publication No. 6. Georgia Cooperative Extension, University
of Georgia College of Agricultural and Environmental Sciences, Athens.
Toews, M. D. 2008. Stink bug movement into cotton from adjacent
crops. pp. 131-135. In T. Grey, M. Toews, & C. Perry (eds.)
2007 Georgia Cotton Research and Extension Report. UGA/CPES Research
Extension Publication No. 6. Georgia Cooperative Extension, University
of Georgia College of Agricultural and Environmental Sciences, Athens.
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. pp.
1193-1203. In Proceedings of the Beltwide Cotton Conferences,
January 8-11, Nashville, TN, National Cotton Council of America.
Blinka, E., J. Bacheler, P. M. Roberts, J. K. Greene, M. D. Toews,
D. W. Mott, J. W. Van Duyn, and J.R. Bradley. 2008. Evaluation of the
relationship between stink bug pressure vs. yield under a regressive spray
treatment. Pp. 1258-1261. In Proceedings of the Beltwide Cotton
Conferences, January 8-11, Nashville, TN, National Cotton Council of America.
Bacheler, J. S., P. Roberts, J. K. Greene, J. W. Van Duyn, A.
Herbert, M. D. Toews, J. R. Ruberson, E. L. Blinka, D. W. Mott, D. Robinson,
T. Walker, C. Davis, R. Smith, D. Morrison, and T. Pegram. 2008. A southeastern
perspective on hemipteran pests, pp. 926-927. In Proceedings
of the Beltwide Cotton Conferences, January 8-11, Nashville, TN, National
Cotton Council of America.
Greene, J. K., P. M. Roberts, J. S. Bacheler, J. R. Ruberson,
J. W. Van Duyn, M. D. Toews, E. L. Blinka, D. Robinson, D. W. Mott, T.
Walker, C. Davis, S.C. St. Matthews, and R.B. Reeves. 2008. Refining treatment
thresholds for stink bugs in the southeast-2007, pp. 1204-1211. In Proceedings
of the Beltwide Cotton Conferences, January 8-11, Nashville, TN, National
Cotton Council of America.
Campbell, J. F., M. D. Toews, and F. H. Arthur (2007). 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. Pp 140-1 to 140-2. G.L
Obenauf (ed.). In Proceeding of the Annual International Research
Conference on Methyl Bromide Alternatives and Emissions Reductions, November
6-9, 2006.
Campbell, J. F, and M. D. Toews. 2005. Identify the source. Association
of International Bakers (AIB) Quarterly. Fall: 12-13.