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Table 3 Effect of tested formulations on mortality and weight gain of two larval instars of A. ipsilon

From: Field persistence of certain new insecticides and their efficacy against black cutworm, Agrotis ipsilon (Hufnagel)

Conc. (mg L−1) 3rd-instar 5th-instar
Larval mortality (%) ± SE
E* I* C* E* I* C*
10 30.8d ± 0.2 26.7d ± 1.2 22.2 d ± 2.3 20.0d ± 5.2 16.4e ± 1.9 12.3d ± 1.9
25 76.7c ± 2.8 70.0c ± 1.1 66.5c ± 1.4 65.5c ± 1.9 59.9d ± 1.7 55.5c ± 1.4
50 93.3ab ± 0.5 86.9b ± 0.8 80.8b ± 0.8 82.3b ± 1.0 77.7c ± 1.5 71.9b ± 1.2
100 100a ± 0.0 100a ± 0.0 95.2ab ± 1.5 97.1ab ± 0.4 89.8ab ± 1.0 84.6ab ± 1.2
200 100a ± 0.0 100a ± 0.0 100a ± 0.0 100 a ± 0.0 98.1a ± 0.4 92.5a ± 0.6
Mean weight gain (mg/larva) ± SE
 Control 357.9d ± 1.7 355.8e ± 1.3 360.0e ± 1.7 710.5e ± 3.2 714.0f ± 3.6 712.2f ± 2.9
 10 203.1c ± 0.2 218.3d ± 1.2 222.6d ± 2.3 506.0d ± 5.2 558.4e ± 1.9 566.1e ± 1.9
 25 33.6b ± 2.8 44.7c ± 1.1 48.7c ± 1.4 390.3c ± 1.9 397.0d ± 1.7 385.5d ± 1.4
 50 13.7a ± 0.5 16.9b ± 0.8 20.0b ± 0.8 52.3b ± 1.0 63.5c ± 1.5 71.9c ± 1.2
 100 5.0a ± 0.5 12.2a ± 1.5 7.1a ± 0.4 19.8b ± 1.0 24.6b ± 1.2
 200 3.1a ± 0.4 5.0a ± 0.6
  1. Means followed by the same letter in the same column are not significantly different according to Tukey's multiple range test at P < 0.05
  2. E*: Emamectin benzoate, I*: Indoxacarb, C*: Chlorantraniliprole
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