Insect Pest Management in Virginia Cotton, Peanut, and Soybean

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Treatment application(s): Broadcast using spider Nozzle type: 8002VS Nozzle spacing: 18” PSI: 30 GPA: 16.5 Comments: Background bug damage level was 13% (determined by inspecting 100 bolls on July 18, 2011); mostly green stink bugs (based on observation). Herbicides Date Product Rate/A 4/30 Acumen 1.5 pt 4/30 Cotoran 4L 1 qt 4/30 Gramoxone 1 qt 5/23 Roundup 22 oz WeatherMax 5/28 Credit 1 qt 6/30 MSMA 1 qt 6/30 Envoke 0.1 oz 6/30 Cotton Pro 1.5 pt Additional insecticides Date Product Rate/A 4/29 Temik 15G 5 lb 5/23 Orthene 97 6 oz Growth regulators Date Product Rate/A 7/01 Pentia 10 oz Lime & fertilizer Date Product Rate/A 3/28 6-16-39 330 lb 6/8 N 30 units 6/8 Boron 1 qt 6/23 N 30 units 6/23 Boron 1 qt Defoliation Date Product Rate/A 9/21 Finish 1 qt 9/21 Dropp 3 oz 9/21 Folex 6 oz 10/04 Super Boll 1 pt 79
Table 39. Percent internal boll damage 1 , CT11-SBUG-Valent. Tidewater AREC, Suffolk, VA, 2011. Treatments were applied on July 19. # Material Rate/A Jul 25 Jul 28 1 Untreated 27.50 a 32.50 a 2 Belay 3 oz 10.00 b 10.00 b 3 Belay 4 oz 2.50 b 5.00 b 4 Belay 2 oz 5.00 b 17.50 ab + Kaiso 1.3 oz 5 Belay 2 oz 5.00 b 2.50 b + Baythroid XL 2.6 oz 6 Orthene 97 8 oz** 10.00 b 5.00 b 7 Endigo ZC 5 oz 5.00 b 5.00 b 8 Bidrin 8 6 oz 12.50 b 12.50 b 9 Baythroid XL 2.6 oz 7.50 b 7.50 b LSD 12.68 16.44 Means within a column followed by the same letter(s) are not significantly different (Protected LSD, P=0.05). 1 Based on sampling ten 0.9-1.1-inch-diameter bolls per plot. 80
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2011 Insect Pest Management in Virg
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ACKNOWLEDGMENTS The authors wish to
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INDEPENDENT CROP CONSULTANTS Chad H
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Contents Acknowledgments ..........
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Climatological Summary of the 2011
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Table 2. Daily precipitation (inche
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Table 3. Soil types, nutrient analy
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Test: CT11-THP-Regional-Irrigated,
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Table 4. Thrips injury ratings 1 ,
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Table 6. Plant height 1 , number of
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Test: CT11-THP-Regional-Dryland, Ef
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Table 8. Thrips injury ratings 1 ,
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Table 10. Plant height 1 , number o
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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 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
Page 57 and 58: Table 29. Stand counts, plant heigh
Page 59 and 60: Treatment application(s): Broadcast
Page 61 and 62: Treatment means (% bollworm damage,
Page 63 and 64: Table 31. Percent external bollworm
Page 67 and 68: Test: CT11-BW4, Efficacy of selecte
Page 71 and 72: Lint 2 Table 35. Percent external b
Page 79: Test: CT11-SBUG-Valent, Evaluation
Page 83 and 84: Table 40. Percent internal boll dam
Page 85 and 86: Table 41. Percent internal boll dam
Page 87 and 88: Test: PT11-THP-1, Evaluation of in-
Page 89 and 90: Table 42. Stand counts, PT11-THP-1.
Page 93 and 94: Test: PT11-THP-2, Evaluation of liq
Page 95 and 96: Table 46. Stand counts and yield, P
Page 99 and 100: Treatment application(s): Liquid in
Page 107 and 108: Test: PT11-THP-Syngenta-1, Evaluati
Page 109 and 110: Table 54. Stand counts and thrips i
Page 111 and 112: Table 56. Tomato spotted wilt virus
Page 113 and 114: Treatment application(s): Granular
Page 117 and 118: Test: PT11-THP-VA Lines, Evaluation
Page 121 and 122: Table 62. Stand counts on May 19 an
Page 123 and 124: Table 63. Mean number of larvae per
Page 125 and 126: Treatment application(s): Full cove
Page 127 and 128: Test: PT11-CEW-3, Evaluation of fol
Page 129 and 130: 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
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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 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.
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Insect Pest Management in Virginia Cotton, Peanut, and Soybean

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