INSECT PEST MANAGEMENT IN VIRGINIA COTTON, PEANUT, AND SOYBEAN 2011 D. Ames Herbert, Jr., Extension Entomologist, Virg<strong>in</strong>ia Tech Tidewater AREC Technical Support: Mike Arr<strong>in</strong>gton, Research Specialist, Virg<strong>in</strong>ia Tech Tidewater AREC Bobby Estienne, Virg<strong>in</strong>ia Tech Tidewater AREC Nathan Harris, Virg<strong>in</strong>ia Tech Tidewater AREC Kather<strong>in</strong>e Kamm<strong>in</strong>ga, Post-Doctoral Fellow, Virg<strong>in</strong>ia Tech Dept. of Entomology Laura Maxey, Virg<strong>in</strong>ia Tech Dept. of Entomology Rebecca McGrath, Agricultural Technician, Virg<strong>in</strong>ia Tech Tidewater AREC David Owens, Graduate Student, Virg<strong>in</strong>ia Tech Dept. of Entomology Jessica Samler, Graduate Student, Virg<strong>in</strong>ia Tech Dept. of Entomology Sean Malone, Research Specialist, Virg<strong>in</strong>ia Tech Tidewater AREC Ed Seymore, Virg<strong>in</strong>ia Tech Tidewater AREC John Xenakis, Virg<strong>in</strong>ia Tech Tidewater AREC November 2011 2011 Virg<strong>in</strong>ia Polytechnic Institute <strong>and</strong> State University VT/1211/AREC-7 Virg<strong>in</strong>ia Cooperative Extension programs <strong>and</strong> employment are open to all, regardless of race, color, national orig<strong>in</strong>, sex, religion, age, disability, political beliefs, sexual orientation, or marital or family status. An equal opportunity/affirmative action employer. Extension is a jo<strong>in</strong>t program of Virg<strong>in</strong>ia Tech, Virg<strong>in</strong>ia State University, the U.S. Department of Agriculture, <strong>and</strong> state <strong>and</strong> local governments. Issued <strong>in</strong> furtherance of Cooperative Extension work, Virg<strong>in</strong>ia Polytechnic Institute <strong>and</strong> State University, Virg<strong>in</strong>ia State University, <strong>and</strong> the U.S. Department of Agriculture cooperat<strong>in</strong>g. Edw<strong>in</strong> J. Jones, Director, Virg<strong>in</strong>ia Cooperative Extension, Virg<strong>in</strong>ia Tech, Blacksburg; Jewel E. Hairston, Interim Adm<strong>in</strong>istrator, 1890 Extension Program, Virg<strong>in</strong>ia State, Petersburg. Disclaimer: Commercial products are named <strong>in</strong> this publication for <strong>in</strong>formational purposes only. Virg<strong>in</strong>ia Cooperative Extension does not endorse these products <strong>and</strong> does not <strong>in</strong>tend discrim<strong>in</strong>ation aga<strong>in</strong>st other products which also may be suitable. 1
ACKNOWLEDGMENTS The authors wish to thank the many cooperators <strong>and</strong> contributors for their help <strong>and</strong> support <strong>in</strong> conduct<strong>in</strong>g numerous 2011 field tests <strong>and</strong> demonstrations. Appreciation is extended to Allen Harper, Director, <strong>and</strong> Bobby Ashburn, Farm Manager of the Tidewater AREC, for their help <strong>in</strong> implement<strong>in</strong>g field tests. Thanks to the many other Extension specialists, Agents, producers, state commodity groups, Ag-Industry personnel, <strong>and</strong> cooperat<strong>in</strong>g commercial companies listed below. PRODUCERS Special thanks to the many producers across the region who helped the program by allow<strong>in</strong>g us to conduct field tests on their farms or by operat<strong>in</strong>g black light traps. Without their cooperation, this program would have less scope <strong>and</strong> mean<strong>in</strong>g to other farmers. Ray Clarke, D<strong>in</strong>widdie Co. Donald Turner, D<strong>in</strong>widdie Co. Greg Jenk<strong>in</strong>s, Gloucester Co. Kirby Farms, Hanover Co. Jason Benton, Middlesex Co. Stephen Davis, New Kent Co. Bennie Jenn<strong>in</strong>gs, Chesapeake Harry Shepard, Orange Co. Steve Rosbicki, Pr<strong>in</strong>ce George Co. David Wells, Pr<strong>in</strong>ce George Co. Ray Davis, Southampton Co. Everett Farms, Southampton Co. Mike Grizzard, Southampton Co. Marks Farms, Southampton Co. Speight Farms, Suffolk Kenneth Worrell, Suffolk Lowe Farms, Surry Co. Steven <strong>and</strong> Michael Pittman, Surry Co. Hanzlik Farms, Sussex Co. Don Horsley, Virg<strong>in</strong>ia Beach UNIVERSITY FACULTY AND STAFF Virg<strong>in</strong>ia Polytechnic Institute <strong>and</strong> State University David Holshouser, <strong>Soybean</strong> Specialist, Tidewater AREC, Suffolk, VA Patrick Phipps, Plant Pathologist, Tidewater AREC, Suffolk, VA Maria Balota, Crop Physiologist, Tidewater AREC, Suffolk, VA Thomas Kuhar, Entomologist, Eastern Shore AREC, Pa<strong>in</strong>ter, VA Robert Pitman, Director, Eastern Virg<strong>in</strong>ia AREC, Warsaw, VA Mary Beahm, Agricultural Specialist, Eastern Virg<strong>in</strong>ia AREC, Warsaw, VA Pete Schultz, Director/Entomologist, Hampton Roads AREC, Virg<strong>in</strong>ia Beach, VA Hélène Doughty, Senior Research Specialist, Eastern Shore AREC, Pa<strong>in</strong>ter, VA Jim Jenrette, Research Assistant, Eastern Shore AREC, Pa<strong>in</strong>ter, VA North Carol<strong>in</strong>a State University Jack Bacheler, Entomologist, Dept. of Entomology, Raleigh, NC Dan Mott, Research Specialist, Dept. of Entomology, Raleigh, NC Dom<strong>in</strong>ic Reisig, Entomologist, Dept. of Entomology, Plymouth, NC Steven Roberson, Research Technician, Dept. of Entomology, Plymouth, NC 2
- Page 1: 2011 Insect Pest Management in Virg
- Page 5 and 6: INDEPENDENT CROP CONSULTANTS Chad H
- Page 7 and 8: Contents Acknowledgments ..........
- Page 9 and 10: Climatological Summary of the 2011
- Page 11 and 12: Table 2. Daily precipitation (inche
- Page 13 and 14: Table 3. Soil types, nutrient analy
- Page 15 and 16: Test: CT11-THP-Regional-Irrigated,
- Page 17 and 18: Table 4. Thrips injury ratings 1 ,
- Page 19 and 20: Table 6. Plant height 1 , number of
- Page 21 and 22: Test: CT11-THP-Regional-Dryland, Ef
- Page 23 and 24: Table 8. Thrips injury ratings 1 ,
- Page 25 and 26: Table 10. Plant height 1 , number o
- Page 27 and 28: Test: CT11-THP-Regional-Foliar, Eff
- Page 29 and 30: Table 12. Thrips injury ratings 1 ,
- Page 31 and 32: Table 14. Plant height 1 , number o
- Page 33 and 34: Test: CT11-THP-Regional-Eastern, Va
- Page 35 and 36: Table 16. Thrips injury ratings and
- Page 37 and 38: Test: CT11-THP-Bayer, Evaluation of
- Page 39 and 40: Table 19. Thrips injury ratings and
- Page 41 and 42: Test: CT11-THP-Dow, Efficacy of fol
- Page 43 and 44: Table 21. Stand counts, thrips inju
- Page 45 and 46: Test: CT11-THP-PHY, Test to evaluat
- Page 47 and 48: Table 23. Stand counts, thrips inju
- Page 49 and 50: Table 24. Stand counts, number of n
- Page 51 and 52: Table 26. Mean number of thrips per
- Page 53 and 54:
Treatment application(s): Liquid in
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Table 28. Mean number of thrips per
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Table 29. Stand counts, plant heigh
- Page 59 and 60:
Treatment application(s): Broadcast
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Treatment means (% bollworm damage,
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Table 31. Percent external bollworm
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Table 32. Percent external bollworm
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Test: CT11-BW4, Efficacy of selecte
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Table 34. Percent external bollworm
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Lint 2 Table 35. Percent external b
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Table 36. Percent external bollworm
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Table 37. Percent external bollworm
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Treatment application(s): Broadcast
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Test: CT11-SBUG-Valent, Evaluation
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Table 39. Percent internal boll dam
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Table 40. Percent internal boll dam
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Table 41. Percent internal boll dam
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Test: PT11-THP-1, Evaluation of in-
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Table 42. Stand counts, PT11-THP-1.
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Table 44. Mean number of thrips per
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Test: PT11-THP-2, Evaluation of liq
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Table 46. Stand counts and yield, P
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Table 48. Mean number of thrips per
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Treatment application(s): Liquid in
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Table 50. Thrips injury ratings 1 ,
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Treatment application(s): Broadcast
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Table 52. Thrips injury ratings 1 ,
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Test: PT11-THP-Syngenta-1, Evaluati
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Table 54. Stand counts and thrips i
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Table 56. Tomato spotted wilt virus
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Treatment application(s): Granular
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Table 58. Mean number of thrips per
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Test: PT11-THP-VA Lines, Evaluation
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Table 61. Thrips injury ratings and
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Table 62. Stand counts on May 19 an
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Table 63. Mean number of larvae per
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Treatment application(s): Full cove
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Test: PT11-CEW-3, Evaluation of fol
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Table 65. Mean number of larvae per
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Table 66. Southern corn rootworm me
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Test: SB11-SEED-1, Evaluation of se
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Table 68. Thrips injury ratings 1 a
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Table 69. Stand counts, thrips coun
- Page 139 and 140:
Test: SB11-BMSB-1, Efficacy of foli
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Table 71 (continued). Mean number o
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Table 72. Mean number of brown marm
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Table 73. Mean number of brown marm
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Table 74. Mean number of larvae per
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Table 75. Mean number of larvae per
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Table 76. Mean number of larvae per
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Table 77. Mean number of insects pe
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Table 79. Results of the 2011 Virgi
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Figure 1. Corn earworm regression.