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Egyptian Journal of Biological Pest Control

Table 1 Effect of different treatments on the abundance of insect pests, associated predators, and percentage cotton yield

From: Field evaluation of water plant extracts on sucking insect pests and their associated predators in transgenic Bt cotton

Treatments

Means ± SE

Yield increase (%)

Pest abundance

Predator abundance

A. indica

2.46 ± 0.123b

0.97 ± 0.131a

63.41

M. azedarach

3.91 ± 0.179a

1.03 ± 0.132a

50.23

Control—w

4.44 ± 0.157a

0.70 ± 0.108ab

0

Control—ws

4.23 ± 0.127a

0.70 ± 0.097ab

07.83

Control—B

1.93 ± 0.089b

0.46 ± 0.092b

58.81

  1. Abundance values are the average number of pest and predators per plant recorded at 3, 7, and 10 days after application. Key pests are whitefly, aphids, and jassid, while key predators are coccinellid beetles and Chrysoperla carnea. Control—w is the application of water only, control—B is the application of the synthetic pesticide Bifenthrin, and control—ws is the application of water containing 0.1% liquid soap only, means sharing similar letters within columns are not significantly different at P > 0.05
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