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Table 4 Relative toxicity of binary mixtures against second instars of S. litura and measures of interactions

From: A plant-based extract mixture for controlling Spodoptera litura (Lepidoptera: Noctuidae)

Crude A Crude B Compound alone Binary Mixtures χ 2 Effect
Observed A Observed B Expected Observed
1.448 µg/larva P. retrofractum 3.294 µg/larva A. calamus 0.10 0.07 0.16 0.27 7.06 Synergistic
1.448 µg/larva P. retrofractum 6.735 µg/larva A. calamus 0.10 0.17 0.25 0.37 5.41 Synergistic
3.213 µg/larva P. retrofractum 3.294 µg/larva A. calamus 0.23 0.07 028 0.47 12.16 Synergistic
3.213 µg/larva P. retrofractum 6.735 µg/larva A. calamus 0.23 0.17 0.36 0.50 5.58 Synergistic