Insect Pest Management in Virginia Cotton, Peanut, and Soybean

Table 30. Percent external bollworm damage 1 and yield, CT11-BW1. Tidewater AREC,
Suffolk, VA, 2011.
Aug 8 Aug 15 Lint lb/acre 2
# Variety Protected
Not
protected Protected
Not
protected Protected
Not
protected
1 PHY 499 WRF 0.00 0.00 0.00 0.00 d 977 a-c 1008 a
2 PHY 375 WRF 0.00 0.00 0.00 0.00 d 898 a-e 863 a-d
3 PHY 367 WRF 0.00 0.00 0.00 0.00 d 824 c-e 839 b-d
4 PHY 565 WRF 0.00 0.00 0.00 2.00 cd 941 a-c 953 ab
5 DP 1032 B2RF 0.00 0.00 0.00 0.00 d 986 ab 1021 a
6 DP 1028 B2RF 0.00 0.00 0.00 0.00 d 1033 a 909 a-d
7 DP 1034 B2RF 0.00 0.00 0.00 1.00 cd 1031 a 948 a-c
8 AM 1550 B2RF 0.00 0.00 1.00 2.00 cd 844 b-e 873 a-d
9 DG 2570 B2RF 0.00 0.00 0.00 0.00 d 757 e 780 c-e
10 FM 1740 B2F 0.00 0.00 0.00 0.00 d 766 e 766 de
11 ST 5288 B2F 1.00 0.00 0.00 0.00 d 929 a-d 935 a-c
12 DP 1133 B2RF 0.00 0.00 0.00 0.00 d 1033 a 1027 a
13 PHY 315 RF 1.00 5.00 1.00 9.00 ab 775 de 653 e
14 DP 121 RF 0.00 4.00 0.00 13.00 a 875 a-e 752 de
15 SSG HQ 210 CT 4.00 7.00 0.00 5.00 bc 903 a-e 755 de
LSD NS NS NS 4.30 161.5 168.6
Means within a column followed by the same letter(s) are not significantly different (Protected LSD, P=0.05).
1 External bollworm damage based on a sample of 25 bolls per plot.
2 Cotton was harvested on October 24. Gross yields were reduced for each plot (mean = 57.7-62.9%) to account for
seed and trash.
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