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Table 2 Median lethal (LC50) and LC90 values of Metarhizium anisopliae after 2 days of feeding normal and F1 5th instar Agrotis ipsilon larvae on treated leaves

From: Potency of Bio Magic (Metarhizium anisopliae fungus) and gamma radiation in the black cut worm, Agrotis ipsilon (Hufnagel) larvae

Treatment

LC50 (spores/ml)

LC90 (spores/ml)

Slope

Resistance ratio

Toxicity index

Unirradiated larvae

20.49 × 105 (12.13 × 105–86.24 × 105)

130.57 × 105

1.59

4.09

24.4

F1 larvae

5 × 105 (4.26 × 105–6.05 × 105)

19.36 × 105

2.18

1.00

100

  1. Toxicity Index and resistance ratio compared with accumulative mortality on F1 larvae