Table 2 Mortality response of 3rd instar larvae of Spodoptera litura to different fungal isolates of Lecanicillium lecanii
Fungal isolates | Heterogeneity (χ2) | Regression equation | LC50 (spores ml−1) | Fiducial limit @ 50% | LC90 (spores ml−1) | Fiducial limit @ 90% |
|---|---|---|---|---|---|---|
L-1 | 0.61 | y = 0.277x + 3.158 | 4.42 × 106 | 6.76 × 105–2.89 × 107 | 2.08 × 1011 | 2.28 × 108–1.89 × 1014 |
L-2 | 1.47 | y = 0.279x + 3.076 | 7.68 × 106 | 1.01 × 106–5.82 × 107 | 3.82 × 1011 | 2.72 × 108–5.36 × 1014 |
L-3 | 1.53 | y = 0.439x + 2.166 | 3 × 106 | 9.41 × 105–9.57 × 106 | 2.40 × 109 | 1.27 × 108–4.53 × 1010 |
L-4 | 0.32 | y = 0.332x + 3.054 | 7.03 × 105 | 1.61 × 105–3.06 × 106 | 5.54 × 109 | 7.80 × 107–3.94 × 1011 |
L-5 | 1.48 | y = 0.331x + 2.971 | 1.27 × 106 | 2.88 × 105–5.61 × 106 | 1.12 × 1010 | 1.14 × 108–1.10 × 1012 |
L-6 | 0.51 | y = 0.319x + 2.954 | 2.52 × 106 | 5.33 × 105–1.19 × 107 | 2.64 × 1010 | 1.76 × 108 –3.96 × 1012 |
L-7 | 1.91 | y = 0.293x + 3.038 | 4.98 × 106 | 8.03 × 105–3.09 × 107 | 1.48 × 1010 | 2.57 × 108–8.54 × 1012 |
L-8 | 0.17 | y = 0.356x + 2.841 | 1.17 × 106 | 2.97 × 105–4.58 × 106 | 5.00 × 109 | 1.01 × 108–2.48 × 1011 |
L-9 | 0.81 | y = 0.318x + 2.959 | 2.56 × 106 | 5.29 × 105–1.24 × 107 | 3.03 × 1010 | 1.77 × 108–5.17 × 1012 |