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Table 1 Toxicity of cypermethrin (Cyp) and synergism with and without enzyme inhibitors PBO, DEM, and TPP in a field population of Amsacta albistriga 24 h post treatment

From: Toxicity of cypermethrin and enzyme inhibitor synergists in red hairy caterpillar Amsacta albistriga (Lepidoptera: Arctiidae)

Treatment/larvae

LC50 (ppm)

Fudicial limits (95%)

Slope (±SE)

χ2

df

Cypermethrin (Cyp)

63.326

48.022–78.630

0.41 (± 0.037)

0.099

4

Cyp + 5 mM PBO

12.039

4.360–33.240

0.31 (± 0.136)

0.011

4

Cyp + 5 mM DEM

43.716

33.89–53.53

0.37 (± 0.117)

0.049

4

Cyp + 5 mM TPP

13.234

5.439–32.340

0.30 (± 0.073)

0.143

4

  1. Legend: LC50 lethal concentration for 50% of larva, χ2 chi2, df degree of freedom, ppm parts per million, SE standard error