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Table 2 Lethal dose (LD) of adult S. cerealella treated with agro waste powders

From: Chemical composition and toxicity of some Agro waste-derived insecticides against Angoumois grain moth, Sitotroga ceralella (Olivier) [Lepidoptera: Gelechiidae] infesting stored paddy grains

Agro waste Slope ± SE Intercept ± SE χ2 Exposure period (h) LD50 (LCL-UCL) (g) LD90 (LCL-UCL) (g) P value
Rice husk 2.25 ± 1.42 0.22 ± 0.42 0.35 24 0.80 (0.47–6.01) 2.97 (1.61–5.03) 0.84
  3.82 ± 3.51 0.55 ± 0.10 0.33 48 0.72 (0.36–4.22) 1.55 (0.82–5.94) 0.55
  4.47 ± 2.36 1.06 ± 0.78 0.08 72 0.58 (0.20–3.75) 1.12 (0.51–2.62) 0.95
  5.88 ± 2.34 1.94 ± 0.79 0.75 96 0.47 (0.38–0.58) 0.77 (0.61–4.60) 0.69
Groundnut 2.88 ± 1.53 0.56 ± 0.49 0.42 24 0.64 (0.41–5.03) 1.79 (0.56–4.86) 0.81
Pod 4.07 ± 2.51 0.96 ± 0.81 0.67 48 0.59 (0.23–4.06) 1.21 (0.74–4.54) 0.72
  0.83 ± 0.23 0.59 ± 0.15 1.70 72 0.58 (0.11–3.54) 1.23 (0.30–4.20) 0.64
  5.76 ± 2.88 2.08 ± 0.96 1.59 96 0.44 (0.01–0.51) 0.73 (0.57–3.19) 0.45
Cowpea pod 2.95 ± 1.57 0.62 ± 0.51 0.42 24 0.62 (0.43–5.24) 1.67 (0.46–6.50) 0.81
  4.21 ± 2.62 1.05 ± 0.85 0.69 48 0.56 (0.17–3.43) 1.17 (0.51–2.62) 0.71
  2.69 ± 1.66 0.69 ± 0.51 0.30 72 0.55 (0.07–0.61) 1.66 (0.42–3.52) 0.86
  2.48 ± 0.43 0.31 ± 0.14 3.01 96 0.12 (0.02–0.18) 0.64 (0.54–0.83) 0.39
Maize cob 2.29 ± 1.49 0.27 ± 0.04 0.33 24 0.76 (0.41–4.41) 2.77 (1.52–5.42) 0.85
  3.01 ± 1.71 0.64 ± 0.54 0.90 48 0.76 (0.42–4.24) 2.77 (0.42–4.13) 0.64
  3.81 ± 2.00 0.98 ± 0.66 0.94 72 0.53 (0.41–3.42) 1.20 (0.26–4.47) 0.95
  5.32 ± 2.66 1.84 ± 0.88 1.44 96 0.45 (0.03–0.57) 0.78 (0.60–1.35) 0.49
  1. χ2 Chi-square value, SE standard error, LCL lower confidence limit, UCL upper confidence limit
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