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Table 4 Pathogenicity parameters of Metarhizium rileyi incorporated with azadirachtin to 2nd and 3rd larval instars of Helicoverpa armigera at 7 days of treatments

From: Evaluation of Metarhizium rileyi Farlow (Samson) impregnated with azadirachtin and indoxacarb against Helicoverpa armigera (Hubner)

Parameters

Azadirachtin (1.02 ppm)

Azadirachtin (1.53 ppm)

 

2nd instar

3rd-instar

Reg. equation

Y = 0.54X − 2.21

Y = 0.42X − 2.29

χ2 calculated

0.12

1.12

χ2 tabulated

7.81

9.48

LC50 (conidia/ml)

1.09 × 104

2.79 × 103

Fiducial limits (conidia/ml)

4.10 × 103 and 2.93 × 104

8.83 × 104 and 8.80 × 105

LC90 (conidia/ml)

2.39 × 106

3.12 × 108

Fiducial limits (Conidia/ml)

5.13 × 105 and 3.62 × 107

4.73 × 107 and 8.27 × 109