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Egyptian Journal of Biological Pest Control

Table 1 Values of LC50 and LC90 with 95% confidence intervals of the two tested endophytic isolates of Beauveria bassiana on grapevine aphid, Aphis illinoisensis

From: Isolation and efficacy of the endophytic fungus, Beauveria bassiana (Bals.) Vuillemin on grapevine aphid, Aphis illinoisensis Shimer (Hemiptera: Aphididae) under laboratory conditions

Isolates

LC50 (spores/ml)

LC90 (spores/ml)

Intercept

Slope ± SE

X2

Values

95% confidence intervals

Values

95% confidence intervals

Lower bound

Upper bound

Lower bound

Upper bound

Bb-Taif1

6.041 × 104

2.253 × 104

1.524 × 105

6.130 × 106

4.652 × 107

1.903 × 106

− 3.201

0.667 ± 0.020

9.5204

Bb-Taif2

3.199 × 105

1.708 × 105

6.044 × 105

7.474 × 107

4.367 × 108

2.783 × 107

− 3.081

0.562 ± 0.025

6.1148

Sig.

*

NS

**

*

*

*

NS

*

NS

  1. * (significant), ** (high significant), and NS (insignificant) with a P = 0.05
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