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Table 2 Virulence of strain TC-1 to white grubs (Anomala corpulenta)

From: Characterization of a novel chitinolytic Serratia marcescens strain TC-1 with broad insecticidal spectrum

Concentration of strain TC-1 (108 CFU ml−1)

Number of white grub tested

Number of dead white grub

Mortality (%)

Corrected mortality (%)

LogC(Y)

Fatal

probability(X)

Test1

Test2

Test3

10 × 

20

18

19

18

91.7 a

91.1 a

9

6.3469

5 × 

20

16

16

15

78.3 b

76.7 b

8.699

5.7290

2.5 × 

20

12

11

14

61.7 c

58.9 c

8.3979

5.2250

1.25 × 

20

10

9

10

48.3 d

44.6 d

8.0969

4.8642

0.625 × 

20

8

10

10

46.7 d

42.9 d

7.7959

4.8211

CK

20

1

1

2

6.7 e

   
  1. Data with different lowercases in each column indicate significant difference at P < 0.05 level