ORIGINAL ARTICLE
Susceptibility of Sitophilus zeamais mots and Callosobruchus maculatus F. to plant parts of Ricinodendron heudelotii
1
Department of Crop Production Technology, Niger Delta University, Wilberforce Island, PMB 071, Yenagoa, Bayelsa, Nigeria
2
Department of Crop Science, University of Uyo, Uyo, Nigeria
Corresponding author
Timothy T. Epidi
Department of Crop Production Technology, Niger Delta University, Wilberforce Island, PMB 071, Yenagoa, Bayelsa, Nigeria
Department of Crop Production Technology, Niger Delta University, Wilberforce Island, PMB 071, Yenagoa, Bayelsa, Nigeria
Journal of Plant Protection Research 2009;49(4):411-415
KEYWORDS
TOPICS
ABSTRACT
Studies were carried out in the laboratory to determine the efficacy of powders from plant parts of
Ricinodendron heudelotii
against the storage pests
Sitophilus zeamais
and
Callosobruchus
maculatus
on stored maize and cowpea, respectively. Leaf, bark and
root powders were added as admixtures to 100 g of grains to assess contact toxicity, damage assessment, progeny production and
grain germination. Results indicated that the plant materials were toxic to the two insect species with over 30% and 75% mortality for
S. zeamais
and
C
.
maculatus,
respectively. Observable damage level was significantly (p ≤ 0.05) lower in treated grains while progeny
production by both insect species was significantly (p ≤ 0.05) reduced. Grain germination of both crops was not affected by the powders. The potential use of
P. heudelotii
in storage pest management is discussed.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
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