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Table 2 Effect of treatments on bollworm densities, seed cotton yield and yield loss

From: Field efficacy of genetically modified FK 95 Bollgard II cotton for control of bollworms, Lepidoptera, in Ghana

Treatment

Bollworms/plant

Yield (kg/ha)

Yield loss (%)

SFK 95 BG II

0.013c

1657.7a

13.64c

S0FK95 BG II

0.10bc

1173.0b

20.91bc

SFK 37

0.18b

1149.7b

31.67b

S0FK37

0.71a

509.4c

59.55a

Pr > F

0.0004

< 0.0001

< 0.0001

CV (%)

6.40

14.52

21.61

  1. Column means accompanied by different letters are significantly different at P  < 0.05
  2. SFK 95 BG II = Bollgard II cotton sprayed for both sucking insect pests and bollworm; S0FK95 BG II = Bollgard II cotton sprayed for only sucking insect pests but unsprayed for bollworm; SFK 37 = conventional cotton sprayed for both sucking insect pests and bollworms; S0FK 37 = conventional cotton sprayed for only sucking insect pest but unsprayed for bollworm