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