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Table 2 Median lethal time (LT50) values for the indigenous strains of entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae bioassayed against late 3rd instar nymphs of peach-potato aphid Myzus persicae under laboratory conditions

From: Isolation, identification and virulence of indigenous entomopathogenic fungal strains against the peach-potato aphid, Myzus persicae Sulzer (Hemiptera: Aphididae), and the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)

EPF strains Concentrations (conidia/ml) LT50 (days) Lower and upper 95% Fiducial Limits (days) X2
(df = 30)*
P-value Slope ± S.E
Beauveria bassiana 1.0 × 109 4.571 4.220 – 4.909 68.748  ≥ 0.001 4.353 ± 0.183
1.0 × 108 6.480 5.797 – 7.386 59.180  ≥ 0.001 4.353 ± 0.183
Metarhizium anisopliae 1.0 × 109 6.860 6.166 – 7.770 90.196  ≥ 0.001 3.053 ± 0.167
1.0 × 108 7.883 6.756 – 10.000 107.26  ≥ 0.001 2.552 ± 0.171
  1. *Since the significance level is less than 0.150, a heterogeneity factor is used in the calculation of confidence limits