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Table 4 Toxicity of tested insecticides against the 2nd instar larvae of Tuta absoluta

From: Comparative toxicity of new insecticides generations against tomato leafminer Tuta absoluta and their biochemical effects on tomato plants

Insecticides LC50 (mg/L)a 95% confidence limits (mg/L) LC90 (mg/L) 95% confidence limits (mg/L) Slope ± (SE) b Intercept ± (SE)c (χ2)d Toxicity index at LC50
Non-traditional insecticides
 Actara 2973.84 2218.90–3759.81 14652.47 10184.08–27179.76 1.85 ± 0.1 6.43 ± 0.38 78.59 0.01
 Challenger 24.07 16.17–31.79 164.56 106.42–367.95 1.54 ± 0.09 2.12 ± 0.16 74.69 1.11
 Coragen 0.46 0.31–0.56 1.82 1.49–2.40 2.17 ± 0.14 0.72 ± 0.04 26.69 57.26
 Emperor 0.26 0.18–0.35 1.66 1.06–3.87 1.62 ± 0.1 0.924 ± 0.05 87.09 100.00
 Imaxi 40.23 28.34–56.83 453.55 234.34–783.65 1.22 ± 0.09 1.955 ± 0.16 70.99 0.67
 Radiant 0.59 0.34–0.76 4.84 3.64–6.54 1.40 ± 0.18 0.322 ± 0.04 30.69 45.42
 Vapcomic 0.60 0.44–0.76 8.09 5.64–13.41 1.14 ± 0.07 0.25 ± 0.03 40.50 44.51
Traditional insecticides
 Action Phos 2535.58 1936.77–3167.62 10517.26 7489.07–18748.71 2.07 ± 0.12 7.06 ± 0.44 51.11 0.01
 Delta Plus 5515.04 4866.70–6193.58 13829.84 11277.14–19167.64 3.21 ± 0.20 12.01 ± 0.76 34.14 0.005
 Pestban 1051.19 730.33–1356.92 4348.89 3050.81–8448.13 2.08 ± 0.13 6.28 ± 0.43 62.99 0.03
  1. aConcentration causing 50% mortality after 24 h. of treatment; bSlope of concentration mortality regression line; cIntercept of regression line; dChi square value