2014 Volume 1 Issue 2

Use of some spicy powders in the control of Sitophilus zeamais Motschulsky [Coleoptera: Curculionidae] on maize grains


Suleiman M., Abdulkarim B.
Abstract

Investigations were conducted to test the potential of three spices namely Allium sativum L., Capsicum frutescens L., and Zingiber officinale Rosc. as biopesticides against S. zeamais reared on maize grains. Doses of 1.25, 2.50 and 5.00 g powders of each of A. sativum, C. frutescens and Z. officinale and 0.30 g of Permethrin were applied to 50 g of maize grains infested with S. zeamais in small plastic bottles maintained under constant conditions of 300C and 70% R.H. The effect of the spices on adult mortality was significant (p<0.05) between the spicy powders and the control. Significantly (p<0.05) higher (10.00%) percentage grain damage was recorded with 1.25 g of A. sativum and the least (0.00%) in treatments containing 5.00 of C. frutescens. The findings of this study indicated that the selected spices showed their potential positive protectant ability of maize grain against S. zeamais. The spicy powders could be used as alternative biopesticides against S. zeamais attacking maize grains in the storage.

Key words: Control, Grain damage, Maize grain, Mortality, Sitophilus zeamais, Spicy powders


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Entomology and Applied Science Letters is an international peer reviewed publication which publishes scientific research & review articles related to insects that contain information of interest to a wider audience, e.g. papers bearing on the theoretical, genetic, agricultural, medical and biodiversity issues. Emphasis is also placed on the selection of comprehensive, revisionary or integrated systematics studies of broader biological or zoogeographical relevance. Papers on non-insect groups are no longer accepted. In addition to full-length research articles and reviews, the journal publishes interpretive articles in a Forum section, Short Communications, and Letters to the Editor. The journal publishes reports on all phases of medical entomology and medical acarology, including the systematics and biology of insects, acarines, and other arthropods of public health and veterinary significance.
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