TY  - JOUR
T1  - Insecticidal Evaluation of Some Plant Materials as Grain Protectants Against the Maize Weevil, <I>Sitophilus zeamais </I>(Mots) (Coleoptera: Curclionidae)
AU - , S.T. Arannilewa AU - , O.O. Odeyemi 
JO  - Agricultural Journal
VL  - 2
IS  - 1
SP  - 155
EP  - 159
PY  - 2007
DA  - 2001/08/19
SN  - 1816-9155
DO  - aj.2007.155.159
UR  - https://makhillpublications.co/view-article.php?doi=aj.2007.155.159
KW  - Grain protectant
KW  -aristolochia ringens
KW  -sitophilus zeamais
KW  -percentage of reduction
KW  -weevil perforation index
AB  - Laboratory experiments were carried out to investigate the efficacy of ethanolic extract of four plant materials, namely: <I>Zanthoxylum xanthoxyloides </I> (Lam.) Waterm., <I>Aristolochia ringens</I>(Vahl), <I>Colocasia esculenta</I> (L.) Schott and <I>Morinda lucida </I> (L) on the maize weevil<I> Sitophilus zeamais</I> (Mots). Parameters assessed were adults toxicity, adult emergence, percentage of reduction of plants  and damage effect of weevils to the grains at 0.0, 1.0, 1.5 and 2.0% (w/v) concentrations. <I>Zanthoxylum xanthoxyloides </I> evoked 100% adult mortality within 24 h after treatment; and <I>A. ringens </I> also significantly caused 100% mortality within 48 h.  <I>Aristolochia ringens</I> at all concentrations provided good protection to the grains stored for 49 days and also gave 100% reduction value as well as 0.00% damage and 0.00 Weevil Perforation Index. This study therefore revealed the grain protectant ability of <I> A .ringens </I> and <I>Z. xanthoxyloides </I> on the maize weevil, <I>Sithophlius zeamais. </I> The  bioassay procedure used and results obtained are reported.
ER  -