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Table 4 Lethal concentrations (LC50 and LC 95) of essential oils on C. maculatus at 48 h of exposure

From: Comparative evaluation of insecticidal properties of essential oils of some selected botanicals as bio-pesticides against Cowpea bruchid, Callosobruchus maculatus (Fabricius) [Coleoptera: Chrysomelidae]

Botanicals Slope ± SE Intercept ± SE χ2 LC50 95% FL LC95 95% FL P value
Aframomum melegueta 0.96 ± 0.13 − 0.40 ± 0.10 5.14 2.42 1.80–3.11 4.86 3.93–5.12 0.00
Annona muricata 0.81 ± 0.11 − 0.32 ± 0.12 4.01 3.00 2.16–3.76 5.52 4.81–6.24 0.01
Eucalyptus globulus 0.32 ± 0.10 − 0.61 ± 0.11 8.13 3.91 2.82–4.96 6.01 5.34–8.32 0.00
Ficus exasperate 0.48 ± 0.11 − 0.42 ± 0.14 3.11 2.78 1.95–3.24 5.93 5.05–7.14 0.00
T. tetraptera 0.71 ± 0.12 − 0.28 ± 0.12 6.16 2.51 1.86–3.18 5.16 4.12–6.85 0.01
  1. χ2 chi-square, SE Standard error, LC Lethal concentration, FL Fiducial limits