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Table 1 Dose-response table of C. maculatus adults treated with P. guineense powders

From: Perforation index assessment of cowpea seeds against cowpea bruchid, Callosobruchus maculatus (Fabricius) [Coleoptera: Chrysomelidae], infestation using Piper guineense

P. guineense powders Conc. (g) % mortality ± SE mean
24 h 48 h 72 h 96 h
Leaf 1.0 50.00 ± 3.25b 77.50 ± 3.25b 82.50 ± 3.25b 90.00 ± 3.04b
Seeds 70.00 ± 3.25c 82.50 ± 3.75b 95.00 ± 3.50c 100.00 ± 0.00b
Leaf 2.0 75.00 ± 3.50cd 80.00 ± 3.04b 90.00 ± 2.04c 100.00 ± 0.00b
Seeds 87.50 ± 3.25ef 95.00 ± 3.50c 100.00 ± 0.00c 100.00 ± 0.00b
Leaf 3.0 82.50 ± 3.75d 90.00 ± 3.04c 100.00 ± 0.00c 100.00 ± 0.00b
Seeds 95.00 ± 3.50f 100.00 ± 0.00c 100.00 ± 0.00c 100.00 ± 0.00b
Untreated 0.0 0.00 ± 0.00a 0.00 ± 0.00a 0.00 ± 0.00a 0.00 ± 0.00a
  1. Each value is a mean ± standard error of four replicates. Means within the same column followed by the same letter are not significantly different at P > 0.05 using Tukey’s test