Table 1 Mortality percentage of the 2nd and 4th instars of Spodoptera litura larvae treated with nucleopolyhedrovirus alone and in combination with chlorantraniliprole
Treatments (POB ml−1) | 2nd instar larvae (n = 20) | 4th instar larvae (n = 20) | ||||||
|---|---|---|---|---|---|---|---|---|
Mortality% | Expected mortality | CTF | Interaction | Mortality % | Expected mortality | CTF | Interaction | |
NPV-1 (1 × 104) | 34.02 | 20.43 | ||||||
NPV-2 (6 × 104) | 48.41 | 32.69 | ||||||
NPV-3 (3 × 105) | 60.48 | 42.29 | ||||||
Chl | 38.10 | 24.43 | ||||||
NPV-1+Chl | 74.13 | 75.58 | − 6.63 | Additive | 42.52 | 43.61 | − 0.85 | Additive |
NPV-2+Chl | 85.56 | 75.67 | 14.54 | Additive | 55.53 | 54.17 | 12.14 | Additive |
Npv-3+Chl | 89.35 | 79.42 | 20.16 | Synergistic | 75.70 | 65.91 | 19.13 | Synergistic |
Control | 2.38 | 1.59 | ||||||
F | 251 | 275 | ||||||
DF | 7,71 | 7,62 | ||||||
P | < 0.01 | < 0.01 | ||||||