Table 3. Toxicity of insecticides on S. manilae larvae.
Insecticides | Concentration (mg a.i. liter−1) | Survival Rate (±SD) (%) of S. exigua (48 h) | Pupation rate (±SD) (%) | Emergence rate (±SD) (%) |
---|---|---|---|---|
emamectin benzoate | 0.022 | 41.33 ± 2.96 | 94.84 ± 2.60 a | 94.41 ± 2.83 a |
spinosad | 0.97 | 51.33 ± 2.96 | 93.86 ± 3.41 a | 95.40 ± 2.31 a |
indoxacarb | 0.15 | 37.67 ± 2.33 | 94.44 ± 5.56 a | 97.22 ± 2.78 a |
chlorpyrifos | 0.063 | 44.33 ± 4.67 | 100 ± 0.0 a | 95.35 ± 2.36 a |
alpha-cypermethrin | 1.21 | 37.67 ± 3.93 | 94.87 ± 5.13 a | 97.22 ± 2.78 a |
tebufenozide | 112.23 | 52.33 ± 2.91 | 94.00 ± 3.40 a | 97.78 ± 2.22 a |
chlorfenapyr | 7.56 | 44.33 ± 2.96 | 95.21 ± 2.41 a | 97.62 ± 2.38 a |
chlorantraniliprole | 0.103 | 36.67 ± 2.03 | 94.19 ± 2.91 a | 96.97 ± 3.03 a |
methomyl | 48.32 | 38.00 ± 1.00 | 94.19 ± 2.91 a | 96.97 ± 3.03 a |
control | 98.00 ± 1.00 | 94.33 ± 1.33 a | 98.81 ± 1.19 a |
The data in the table are mean ± SE, and means followed by the same letter are not significantly different; LSD, P < 0.05.