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Effects of some neem products on stored maize weevil, Sitophilus zeamais Motsch

Published online by Cambridge University Press:  19 September 2011

J.R. Cobbinah  and
J. Appiah-Kwarteng
J.R. Cobbinah
Affiliation:
Forest Products Research Institute, University Box 63, Kumasi, Ghana
J. Appiah-Kwarteng
Affiliation:
Forest Products Research Institute, University Box 63, Kumasi, Ghana
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Abstract

Various neem products were compared with copra oil, palm oil and 0.25% diazinon dust for protection of stored maize against the grain weevil, Sitophilus zeamais Motsch. Maize kernels treated with neem oil or ash were damaged less than the control. Although copra and palm kernel oil reduced S. zeamais attack, these edible oils were not as effective as neem oil. Neem wood ash was however, less effective than 0.25% diazinon dust. Neem derivatives inhibited oviposition and/or deterred feeding.

Résumé

Les divers produits de neem etaient comparés avec (l'huile des noix de coco et l'huile de palme pour la protection du mais stocké, contre l'insecte Sitophilus zeamais Motsch. Des grains du mais traités avec de l'huile de neem ou la cendre du bois de neem étaient moins détruits que le contrôle. Bien que l'huile de copra et l'huile d'amende de palme ont reduit l'attaque de S. zeamais, ces huiles comestibles n'étaient pas éfficaces comme l'huile de neem. Cependant, la cendre de bois de neem, était moins éfficace que 0.25% de poudre de diazinon. Les produits tirés de neem ont empêché la ponte et l'alimentation.

Keywords

Sitophilus zeamais MotschKhaya senegalensis (Desv)antifeedantabrasive propertiesSitophilus zeamais MotschKhaya senegalensis (Desv)anti-alimentationles proprietes abrasives
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 10 , Issue 1 , February 1989 , pp. 89 - 92
Copyright
Copyright © ICIPE 1989

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References

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