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