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Table 7 Pathogenicity parameters of Metarhizium rileyi incorporated with indoxacarb (0.72 ppm) to 2nd and 3rd larval instars of Helicoverpa armigera at 7 days of treatment

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

Parameters 2nd instar 3rd instar
Reg. equation Y = 0.47X − 1.97 Y = 0.36X − 1.97
χ2 calculated 0.20 1.65
χ2 tabulated 7.81 9.48
LC50 (conidia/ml) 1.37 × 104 3.06 × 105
Fiducial limits (conidia/ml) 4.62 × 103 and 4.35 × 104 8.14 × 104 and 1.16 × 106
LC90 (conidia/ml) 6.73 × 106 1.11 × 109
Fiducial limits (conidia/ml) 1.02 × 106 and 2.46 × 108 1.07 × 108 and 9.35 × 1010