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Table 3 Efficacy of the entomopathogenic fungi isolates against two-spotted spider mite, Tetranychus urticae under laboratory condition tested at the conidial concentration of 1 × 108 conidia/l

From: DNA barcoding reveals the natural occurrence of Beauveria bassiana (Balsamo) Vuillemin in two-spotted spider mite, Tetranychus urticae Koch in Bhendi [Abelmoschus esculentus (L.) Moench] ecosystem in Coimbatore district of Tamil Nadu

Isolates

Mortality of mites/days after inoculation (DAI)

Per cent mortality (%)

Per cent reduction over control

Mean of three replications

3 DAI

5 DAI

7 DAI

9 DAI

B.b-1

4.50b ± 0.12

6.17 cd ± 0.06

14.17c ± 0.05

19.50c ± 0.07

65.00

97.44

B.b-2

6.17ab ± 0.07

10.83b ± 0.06

17.17b ± 0.05

22.17b ± 0.04

73.90

97.74

B.b-3

4.17b ± 0.08

5.83cde ± 0.06

7.83d ± 0.06

12.83 fg ± 0.04

42.76

96.10

B.b-4

2.83c ± 0.08

5.17def ± 0.07

7.83d ± 0.06

14.17ef ± 0.04

47.23

96.47

B.b-5

4.83b ± 0.07

6.17 cd ± 0.06

7.83d ± 0.06

13.83ef ± 0.04

46.10

96.38

B.b-6

4.17b ± 0.08

6.50c ± 0.11

9.17c ± 0.05

14.50e ± 0.07

48.33

96.55

B.b-7

6.50a ± 0.11

12.17a ± 0.05

19.83a ± 0.04

25.83a ± 0.03

86.10

98.06

B.b-8

1.83d ± 0.10

4.83efg ± 0.07

6.17e ± 0.06

12.17 g ± 0.05

40.56

95.89

B.b-9

0.50e ± 0.00

2.83 h ± 0.08

3.83 g ± 0.08

13.50ef ± 0.08

45.00

96.30

B.b-10

0.83e ± 0.12

4.17 g ± 0.08

5.17f ± 0.07

11.83 g ± 0.09

39.43

95.77

B.b-11

2.83c ± 0.08

4.50 fg ± 0.12

5.83ef ± 0.13

11.83 g ± 0.09

39.43

95.77

B.b-12

4.17b ± 0.08

6.83bc ± 0.06

9.50c ± 0.09

16.50d ± 0.07

55.00

96.97

Control

0.50e ± 0.00

0.50i ± 0.00

0.5 h ± 0.00

0.50 h ± 0.00

1.67

0.00

CD (0.05)

0.24

0.21

0.20

0.18

  

SE(d)

0.12

0.10

0.09

0.08

  
  1. No. of insects per replication: 30. Values sharing same alphabets in superscript are statistically on par based on ANOVA at the 5% level of significance