Skip to main content

Table 2 Progeny development of C. maculatus in cowpea seeds protected 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) Mean number of eggs laid % adult emergence %IR
Leaf 1 20.00 ± 2.04ab 20.00 ± 2.04c 90.00 ± 3.04b
Seed 10.00 ± 1.04ab 10.00 ± 1.04bc 97.50 ± 2.50b
Leaf 2 12.50 ± 1.75ab 8.00 ± 0.04b 97.00 ± 2.50b
Seed 7.50 ± 0.25a 0.00 ± 0.00a 100.00 ± 0.00b
Leaf 3 7.50 ± 0.25a 0.00 ± 0.00a 100.00 ± 0.00b
Seed 5.00 ± 0.04a 0.00 ± 0.00a 100.00 ± 0.00b
Untreated 0.0 62.50 ± 3.75a 64.00 ± 3.22d 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 (s) are not significantly different at P > 0.05 using Tukey’s test