Insect Pest Management in Virginia Cotton, Peanut, and Soybean

Table 14. Plant height 1 , number of true leaves 1 , number of nodes per plant 1 , and aboveground biomass 2 , CT11-THP-
Regional-Foliar. Tidewater AREC, Suffolk, VA, 2011. Insecticide treatments were broadcast on May 13 and again on May
20.
May 23 May 31 Jun 6
# Material Rate/A
Height
(cm) True leaves
Height
(cm) True leaves
Height
(cm) True leaves Nodes Biomass (g)
1 Untreated 4.30 c 1.05 d 6.10 d 2.80 b 8.97 c 4.37 bc 5.53 ab 2.59
2 Orthene 97 4.0 oz 4.93 ab 1.70 a 7.45 a 4.00 a 10.45 a 5.10 a 4.95 cd 3.32
3 Benevia 10OD 20.6 oz 4.60 a-c 1.60 ab 6.58 b-d 3.70 a 9.20 c 4.85 ab 5.30 a-c 3.31
4 Vydate C-LV 17 oz 4.55 bc 1.10 d 6.84 bc 3.89 a 10.38 ab 4.85 ab 4.70 d 2.94
5 Radiant SC 6 oz 4.98 a 1.30 cd 6.55 cd 3.80 a 9.33 c 5.15 a 5.75 a 2.95
6 Karate Z 1.28 oz 4.53 bc 1.20 cd 6.03 d 2.80 b 8.88 c 3.90 c 4.70 d 1.97
7 Dimethoate 4EC 8 oz 4.68 a-c 1.40 bc 6.68 bc 3.95 a 9.53 bc 4.75 ab 5.25 a-c 2.91
8 Lannate 2.4LV 12 oz 4.30 c 1.30 cd 7.13 ab 3.68 a 9.73 a-c 4.85 ab 5.15 b-d 2.91
LSD 0.40 0.29 0.57 0.47 0.87 0.61 0.51 NS
Means within a column followed by the same letter(s) are not significantly different (Protected LSD, P=0.05).
1 Based on sampling five plants per plot.
2 Aboveground biomass based on cutting 5 plants/plot at soil level, pooling those samples into labeled paper bags, and drying at 60°C for 48 hours.
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