Insect Pest Management in Virginia Cotton, Peanut, and Soybean

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Table 70. Thrips injury ratings 1 and bean leaf beetle defoliation ratings 2 , SB11-Seed-2. Tidewater AREC, Suffolk, VA, 2011. Thrips injury rating Defoliation rating # Material Rate May 23 Jun 1 Jun 10 Jun 23 1 Base only 2.94 a 1.63 a 1.75 a 0.31 2 Gaucho 600FS 62.5 g ai/100 kg seed 0.75 c 1.13 b 0.88 c 0.31 3 Poncho Votivo 0.13 mg ai/seed 1.81 b 1.19 b 0.69 d 0.25 4 Gaucho 600FS + Poncho Votivo 5 Maxim Apron XL Cruiser 5FS 62.5 g ai/100 kg seed 0.13 mg ai/seed 2.5 g ai/100 kg seed 7.5 g ai/100 kg seed 50 g ai/100 kg seed 0.44 d 1.13 b 0.50 e 0.31 0.63 cd 1.00 b 1.19 b 0.31 LSD 0.21 0.25 0.16 NS Means within a column followed by the same letter(s) are not significantly different (Protected LSD, P=0.05). 1 Thrips injury based on a 0-5 scale, 0 = no injury and 5 = 100% damaged plants. 2 Bean leaf beetle defoliation rating based on a 0-10 scale, 0 = no defoliation and 10 = 100% defoliation. 137
Test: SB11-BMSB-1, Efficacy of foliar-applied pesticides against brown marmorated stink b in soybean # Material Rate Date(s) treated 1 Vydate L 1 pt/A Aug 17 2 Vydate L 1.5 pt/A Aug 17 3 Vydate L 3 pt/A Aug 17 4 Lannate LV 1 pt/A Aug 17 5 Lannate LV 1.5 pt/A Aug 17 6 Lannate LV 2.25 pt/A Aug 17 7 Cobalt Advanced 22 oz/A Aug 17 8 Cobalt Advanced 25 oz/A Aug 17 9 Cobalt Advanced 31 oz/A Aug 17 10 Untreated Test: SB11-BMSB-1 Year: 2011 Crop: Soybean Variety: Field: Location: Orange Co., VA Experimental design: RCBD Plot size: 6 ft x 20 ft Row spacing: Planting date: Harvest date: Row feet harvested: Treatment application(s): Broadcast using backpack Nozzle type: 8002VS Nozzle spacing: 18” PSI: 18 GPA: 14.3 138
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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 10. Plant height 1 , number o
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Test: CT11-THP-Regional-Foliar, Eff
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Table 14. Plant height 1 , number o
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Test: CT11-THP-Regional-Eastern, Va
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Table 16. Thrips injury ratings and
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Test: CT11-THP-Bayer, Evaluation of
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Table 19. Thrips injury ratings and
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Test: CT11-THP-Dow, Efficacy of fol
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Table 21. Stand counts, thrips inju
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Test: CT11-THP-PHY, Test to evaluat
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Table 23. Stand counts, thrips inju
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Table 24. Stand counts, number of n
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Table 26. Mean number of thrips per
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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
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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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Test: CT11-BW4, Efficacy of selecte
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Lint 2 Table 35. Percent external b
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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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Page 87 and 88: Test: PT11-THP-1, Evaluation of in-
Page 89 and 90: Table 42. Stand counts, PT11-THP-1.
Page 91 and 92: Table 44. Mean number of thrips per
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 101 and 102: Table 50. Thrips injury ratings 1 ,
Page 103 and 104: Treatment application(s): Broadcast
Page 105 and 106: Table 52. Thrips injury ratings 1 ,
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 119 and 120: Table 61. Thrips injury ratings and
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 131 and 132: Table 66. Southern corn rootworm me
Page 133 and 134: Test: SB11-SEED-1, Evaluation of se
Page 135 and 136: Table 68. Thrips injury ratings 1 a
Page 137: Table 69. Stand counts, thrips coun
Page 141 and 142: Table 71 (continued). Mean number o
Page 143 and 144: Table 72. Mean number of brown marm
Page 145 and 146: Table 73. Mean number of brown marm
Page 153 and 154: Table 77. Mean number of insects pe
Page 155 and 156: Table 79. Results of the 2011 Virgi
Page 157 and 158: Figure 1. Corn earworm regression.
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Insect Pest Management in Virginia Cotton, Peanut, and Soybean

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