The Journal of Basic and Applied Zoology

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
P. guineense powders	Conc. (g)	24 h	48 h	72 h	96 h
Leaf	1.0	50.00 ± 3.25^b	77.50 ± 3.25^b	82.50 ± 3.25^b	90.00 ± 3.04^b
Seeds	1.0	70.00 ± 3.25^c	82.50 ± 3.75^b	95.00 ± 3.50^c	100.00 ± 0.00^b
Leaf	2.0	75.00 ± 3.50^cd	80.00 ± 3.04^b	90.00 ± 2.04^c	100.00 ± 0.00^b
Seeds	2.0	87.50 ± 3.25^ef	95.00 ± 3.50^c	100.00 ± 0.00^c	100.00 ± 0.00^b
Leaf	3.0	82.50 ± 3.75^d	90.00 ± 3.04^c	100.00 ± 0.00^c	100.00 ± 0.00^b
Seeds	3.0	95.00 ± 3.50^f	100.00 ± 0.00^c	100.00 ± 0.00^c	100.00 ± 0.00^b
Untreated	0.0	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a	0.00 ± 0.00^a

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

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