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Table 3 Effect of insecticides on collembolan population (per 500 g of soil) at different intervals

From: Impact of some new generation insecticides on soil arthropods in rice maize cropping system

Treatment

Pre treatment

15days

30 days

75days

Mean

% reduction/ increase over control

T1*

1.4±0.12ab**

1.85±0.27a

1.94±0.31a

1.71±0.57a

1.72

+21.98

T2

1.5±0.32ab

1.76±0.31a

1.67±0.39a

1.93±0.38a

1.71

+21.27

T3

1.34±0.20ab

1.46±0.20ab

1.67±0.16a

1.67±0.16a

1.53

+8.51

T4

0.88±0.29b

0.88±0.29b

1.17±0.43a

1.17±0.43a

1.02

-27.65

T5

1.05±0.29ab

1.29±0.50ab

1.18±0.81a

1.38±0.60a

1.22

-13.47

T6

1.35±0.71ab

1.38±0.60ab

1.64±0.26a

1.77±0.16a

1.53

+8.51

T7

1.17±0.43ab

1.43±0.37ab

1.77±0.16a

1.76±0.31a

1.53

+8.51

T8

1.26±0.58ab

1.29±0.50ab

1.56±0.75a

1.56±0.75a

1.41

-

  1. *T1= Rynaxypyr, T2= Fipronil, T3= Cartap hydrochloride, T4= Carbofuran, T5= Phorate, T6= Imidacloprid, T7= Chlorpyrifos, T8= Control
  2. **Numbers followed by same letters are statistically at par (otherwise significantly different at p < 0.05)