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The Influence of Food Type on the Response of Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae) to Cypermet...
ISSN: 0331 - 0094
Publisher: author
The Influence of Food Type on the Response of Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae) to Cypermet...
Indexed in
Agriculture and Food Sciences
ARTICLE-FACTOR
1.3
Article Basics Score: 2
Article Transparency Score: 3
Article Operation Score: 3
Article Articles Score: 3
Article Accessibility Score: 2
SUBMIT PAPER ASK QUESTION
International Category Code (ICC):
ICC-0202
Publisher: Nigerian Journal Of Entomology Lujosh Ventures Limited
International Journal Address (IAA):
IAA.ZONE/033151110094
eISSN
:
0331 - 0094
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Abstract
The effect of food type on the response of maize weevil, Sitophilus zeamais (Motschulsky) to cypermethrin was investigated. Weevils were reared on maize, wheat and sorghum at ambient temperature (28±2ºC) and relative humidity (75±6%). Twenty grams of each food type was doused with one millilitre of different concentrations (0.00001-0.1%) of cypermethrin. Twenty emerged weevils from each food were then exposed to each pre-treated food type. Two control experiments were also set up (one with neither cypermethrin nor methanol and the other with only methanol). The mortality was assessed after 6, 12, 18 and 24 hours post-treatment. Weevil mortality varied with host food, cypermethrin concentration and exposure time. All weevils exposed to cypermethrin treated maize and sorghum grains, respectively exhibited complete (100%) mortality at 0.1% after 24 hours’ exposure while there was incomplete mortality (96.88%) in weevils exposed to 0...
