Entomology

Field Crops Entomology
Michael (Mike) Brewer, Ph.D.

Mission:
The Field Crops Entomology Program will conduct research and technology transfer activities to identify pest management tools that can be used strategically when pest pressure warrants, and to integrate pest management decision aids into cropping management systems, locally and area-wide. The program will work with industry, Research, Extension, and education partners to focus on priority and emerging pest management issues relevant to fiber and grain crops of South Texas while contributing to regional and national goals in pest management.

Research Objectives:

  1. Improve pest management practices by assessing plant response to pest and beneficial insects in new management systems and under changing environmental conditions.
  2. Develop pest management decision support for cropping systems by linking harvest damage with in-season insect and plant monitoring activities.
  3. Contribute to area-wide insect management by evaluating plant stress and cropping system effects on pest risk.
  4. Transfer technologies working with pest management professionals.

Selected Projects and Accomplishments:

  1. Sampling techniques, windows of plant vulnerability, and decision aids for plant bug and cotton fleahopper management on cotton have been developed.
  2. Insect feeding and their ability to transmit disease on cotton bolls and corn ears have been evaluated under irrigated and drought conditions.
  3. Cropping system maps with associated pest insect abundance histories have been generated to identify areas of high pest risk.
  4. Potential insect pests are being evaluated in new crops and neighboring established crops of South Texas.

Selected Collaborations and Thanks:

Many thanks to the Research Entomology staff and students working on these projects, and to the following for their support and collaborations: Extension and Research personnel at Corpus Christi, Weslaco, Lubbock, and College Station; South Texas private consultants and growers; students and colleagues at TAMU Kingsville and Del Mar College, and regional industries and grower associations.

Published Research and Outreach articles:

2014

Elliott, N., M.J. Brewer, K.L. Giles a, G.F. Backoulou, B.P. McCornack, B.B. Pendleton, and T.A. Royer. 2014. Sequential sampling for panicle worms (Lepidoptera: Noctuidae) in grain sorghum. J. Econ. Entomol. 107: 846-853. (pdf available here  – 2014 panicle worms)

Brewer, M.J., G.N. Odvody, D.J. Anderson, and J.C. Remmers. 2014. A comparison of Bt transgene, hybrid background, water stress, and insect stress effects on corn  leaf and ear injury and subsequent yield. Environ. Entomol. 43: 8278-839.  (pdf available here –  2014 Bt corn stress)

Villanueva, R.T., M. Brewer, M.O. Way, S. Biles, D. Sekula, E. Bynum, J. Swart, C. Crumley, A. Knutson, P. Porter, R. Parker, G. Odvody, C. Allen, D. Ragsdale, W. Rooney, G.  Peterson, D. Kerns, T. Royer, and S. Armstrong. 2014. Sugarcane aphid: a new pest of sorghum, 4 pp. Texas A&M AgriLife Extension, College Station, TX. (pdf available here – 2014 Sugarcane Aphid)

Brewer, M. 2014. Sugarcane aphid on sorghum: monitoring and threshold research update. Texas A&M AgriLife Research misc. report, Corpus Christi, TX.  (pdf available here – 2014 sorghum sugarcane aphid)

 2013

Brewer, M.J., D.J. Anderson, and J.S. Armstrong. 2013. Plant growth stage-specific injury and economic injury level for verde plant bug, Creontiades signatus (Hemiptera: Miridae), on cotton: effect of bloom period of infestation. J Econ. Entomol. 106: 2077-2083 (pdf available here – Brewer plant growth).

Brewer, M.J., J.S. Armstrong, and R.D. Parker. 2013. Single and multiple in-season measurements as indicators of at-harvest cotton boll damage caused by verde plant bug (Hemiptera: Miridae). J. Econ. Entomol. 1310-1316 (pdf available here – JEE verde).

Armstrong, J.S., M.J. Brewer, R.D. Parker, and J.J. Adamczyk, Jr.  2013. Verde plant bug (Hemiptera: Miridae) feeding injury to cotton bolls characterized by boll age, size, and damage ratings. J. Econ. Entomol. 106: in press (pdf available here – Verde plant bug).

2012

Anderson, D.J., M.J. Brewer, and C. Farias. 2012. Leaf-footed bug damage and yield effects on late season cotton, pp. 99-104. In: Parker, R. D. 2012. Results of Insect Control Evaluations on Corn, Sorghum, Cotton, Pecan, and Stored Grain in Texas Coastal Bend Counties. Texas A&M AgriLife Extension, Corpus Christi, Texas. (pdf available here – Leaf footed bug damage)

Brewer, M.J., D.J. Anderson, and J.S. Armstrong. 2012. Comparison of cotton square and  boll damage and resulting lint and seed loss caused by verde plant bug, Creontiades signatus.  Southwestern Entomologist 37: 437-447 (pdf available through this link – 2012-Brewer et al SW Entomologist).

Brewer, M.J., D.J. Anderson, and J.S. Armstrong. 2012. Cotton square and boll damage and resulting lint and seed loss caused by verde plant bug, pp. 81-89. In: Parker, R. D. 2012. Results of Insect Control Evaluations on Corn, Sorghum, Cotton, Pecan, and Stored Grain in Texas Coastal Bend Counties. Texas A&M AgriLife Extension, Corpus Christi, Texas. (pdf available here - Cotton square and boll damage).

Brewer, M.J., J.S. Armstrong. 2012. Single and multiple in-season measurements as indicators of at-harvest cotton boll damage caused by verde plant bug, pp. 90-98. In: Parker, R. D. 2012, Results Of Insect Control Evaluations On Corn, Sorghum, Cotton, Pecan, and Stored Grain In Texas Coastal Bend Counties. Texas A&M Agrilife Extension, Corpus Christi, Texas. (pdf available here – Single and multiple in season).

Brewer, M.J., J.S. Armstrong, E.G. Medrano, and J.F. Esquivel. 2012. Association of verde plant bug, Creontiades signatus (Hemiptera: Miridae), with cotton boll rot. Journal of Cotton Sciences 16: 144-151 (pdf available through this link – Brewer et al, J Cotton Science).

Brewer, M.J., D.J. Anderson, J.S. Armstrong, and R.T. Villanueva. 2012. Sampling strategies for square and boll-feeding plant bugs (Hemiptera: Miridae) occurring on cotton. J. Economic Entomology 105: 896-905 (pdf available through this link – Brewer et al, J Econ Entomol).

Brewer, M.J., and P.B. Goodell. 2012. Approaches and incentives to implement integrated pest management that address regional and environmental issues. Annual Review of Entomology 57: 41-59 (pdf available here, distribution limited to single copies for personal use – Brewer & Goodell- Ann Rev.)

Selected Earlier Articles:
Noma, T., C. Gratton, M. Colunga-Garcia, M. J. Brewer, E. E. Mueller, K. A. G. Wyckhuys, G. E. Heimpel, and M. E. O’Neal. 2010. Relationship of soybean aphid (Hemiptera: Aphididae) to soybean plant nutrients, landscape structure, and natural enemies.  Environmental Entomology 39: 31-41 (pdf available here – Relationship soybean aphid ).Brewer, M.J., and T. Noma. 2010. Habitat affinity of resident natural enemies of the invasive Aphis glycines on soybean, with comments on biological control. J. Economic Entomology 103: 583-596 (pdf available here – Habitat affinity).

Brewer, M. J.and N. C. Elliott. 2004. Biological control of cereal aphids in North America and mediating effects of host plant and habitat manipulations. Ann. Rev. Entomol. 49: 219-242 (pdf available here – Biological control of cereal aphids).

2014 Poster Presentations:

Brewer, M., D. Anderson, and M. Parajulee. 2014. Cotton fleahopper damage on water-stressed cotton. Beltwide Cotton Conf., New Orleans (2014 Beltwide Poster)

2013 Poster Presentations:

Brewer, M., M. Way, S. Armstrong, D. Kerns, S. Biles, C. Crumley, D. Sekula, J. Swart, A. Knutson, R. Villanueva, R. Parker, G. Odvody, and D. Ragsdale. 2013 Outbreak of sorghum/sugarcane aphid on sorghum: first detections, distribution, and notes on management. Texas Plant Protection Conference, Bryan, TX, December 2013 (pdf is available here – Brewer TPPA). View the Webinar by clicking this link.

Cartwright, A., D. Anderson, J. Halcomb, and M. Brewer. 2013. Spatial mapping to estimate pest risk of verde plant bug in cotton grown along the Texas Gulf Coast. Natural Sciences  8th  Annual Del Mar College Student Poster Session, Del Mar College, Corpus Christi, Texas, September 5, 2013 (pdf is available here -Cartwright Spatial mapping).

Brewer, M., D. Anderson, and S. Armstrong.  2013. Verde plant bug damage to cotton  affected by its density and seasonal occurrence: a basis for setting an economic injury level. Southwest Branch Meeting of the Entomological Society of  America, Las Cruces, NM, Feb. 25, 2013 (pdf available here – Verde plant bug damage to cotton).

Farias, C., M. Brewer, D. Anderson, G. Odvody, and W. Xu. 2013. Performance of native insect-based resistant corn exposed to corn earworm (H. zea) and fall armyworm (S. frugiperda). Southwest Branch Meeting of the Entomological Society of  America, Las Cruces, NM, Feb. 25, 2013 (pdf available here – Native insect-based resistant corn).

Pruter, L., J. Halcomb, M. Brewer, D. Anderson, and J. Nelson. 2013. Regional cropping and landscape analysis applied to cotton pest management: risk assessment of a sucking bug. Beltwide Cotton Conf., San Antonio, TX. Jan. 7-10, 2013 (available here – Pruter 2013 Beltwide poster).

Anderson, D., M. Brewer, and C. Farias. 2013. Leaf-footed bug damage to late season cotton. Beltwide Cotton Conf., San Antonio, TX. Jan. 7-10, 2013 (available here - Anderson 2013 Beltwide poster).

Brewer, M. J., M. N. Parajulee, D. J. Anderson, and R.B. Shrestha. 2013. Plant water stress and insect seasonality effects on cotton fleahopper. Beltwide Cotton Conf., San Antonio, TX. Jan. 7-10, 2013 (pdf available here -Brewer 2013 Beltwide poster).

Brewer, M., G. Odvody, D. Anderson, J. Remmers, and C. Farias. 2012. Interactions of stacked-trait Bt corn, irrigation, and hybrid background affect corn earworm damage and aflatoxin expressed by mycotoxigenic fungi. Annual Meeting of the Entomological Society of  America, Knoxville, TN, Nov. 14, 2012 (available here - Interactions of stacked-trait Bt corn).

Brewer, M. J., M. N. Parajulee, D. J. Anderson, and R.B. Shrestha. 2012. Cotton fleahopper and its damage to cotton as affected by plant water stress and insect seasonality. Beltwide Cotton Conf., Orlando, FL. Jan. 2-6, 2012 (available here -Cotton fleahopper).

To view past year publications please select link below by year

View 2011 publications

2013 group pic

2013 lab group

DSC_2166

2012 lab group

 

 

 

 

 

Michael (Mike) Brewer, Ph.D.
Assistant Professor of Entomology
10345 Hwy 44
Corpus Christi, TX 78406
361-265-9201
mjbrewer@ag.tamu.edu

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