Skip to main content

Table 2 Estimates of LC50 of Beauveria bassiana and Metarhizium anisopliae isolates for second-instar Helicoverpa armigera larvae, using the Polo-PC program

From: Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae)

Treatments

LC50 (conidia mL−1)

Slope ± SE

N

χ 2

Beauveria bassiana

 ARSEF 1149

1.4 × 106 (5.8 × 105–8.1 × 106)

0.36 ± 0.05

100

8.39

 ESALQ 1288

1.5 × 105 (3.3 × 104–5.6 × 106)

0.46 ± 0.05

100

3.88

 IBCB 36

2.9 × 105 (1.8 × 104–7.1 × 106)

0.55 ± 0.05

100

2.99

 IBCB 170

5.4 × 104 (2.8 × 103–5.1 × 106)

0.29 ± 0.05

100

6.26

 IBCB 1363

4.5 × 104 (2.3 × 103–8.3 × 106)

0.25 ± 0.05

100

1.75

Metarhizium anisopliae

 IBCB 425

6.8 × 105 (1.4 × 104–2.7 × 107)

0.30 ± 0.05

100

7.2

 ESALQ 860

7.8 × 106 (1.8 × 106–3.7 × 107)

0.22 ± 0.05

100

9.25

 ESALQ 1051

5.6 × 106 (2.1 × 107–1.4 × 108)

0.23 ± 0.05

100

4.68

  1. N number of caterpillars tested, χ2 chi-squared value, LC50 lethal concentration, total conidia ml−1