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Table 4 Effect of BKN20 5%AS on some biological parameters of non-target beneficial organisms (Stethorus gilvifrons) in tea

From: Beauveria bassiana: as a potential microbial biocontrol agent for tea mosquito bug, Helopeltis theivora Waterhouse (Hemiptera: Miridae) in Dooars and Darjeeling, India

Treatment

Concentration (ml/ha)

Larval mortality (%)

Larval period (days)

Pupal period (days)

Adult emergence (%)

BKN20 5%AS

600 ml$

0.00a

8.31 ± 2.12a

4.64 ± 0.13a

94.00a

 

800 ml$

0.00a

8.32 ± 2.12a

4.64 ± 0.13a

95.00a

 

1000 ml$

0.00a

8.32 ± 2.12a

4.32 ± 0.11a

94.00a

 

1200 ml$

0.00a

9.33 ± 2.34a

4.65 ± 0.13a

100.00a

Untreated control

0.00a

9.12 ± 2.23a

4.33 ± 0.11a

100.00a

CD (5%)

 

1.61

1.56

15.01

CV (%)

 

5.78

14.66

7.21

  1. Means followed by similar letters in a column are not significantly different at 5% (DMRT F-Test, p > 0.05)
  2. $Containing 2 × 107 conidia/ml