International Journal of Entomology Research

International Journal of Entomology Research


International Journal of Entomology Research
International Journal of Entomology Research
Vol. 6, Issue 3 (2021)

Inventory and impact of pests of different rice varieties stored in Senegal


Samba Dembele, Mamecor Faye, Toffène Diome, Cheikh Tidiane Niass, Pape Mbacké Sembène

Rice is the most widely consumed cereal in the world. In Senegal, it is the essential foodstuff of population. Its permanent availability in stocks is a factor of food security. However, rice stocks are attacked by several predators that could lead to losses. That is in prospect of ensuring better management of these stocks, that this study has been carried out. Its objective is to identify predators of different varieties of stored rice. In order to attain that, sampling on different varieties of stored rice from Senegal River valley has been completed. Varieties have been selected as paddy and white rice. It concerns Sahel 108, Sahel 134, Sahel 177, Sahel 202 and Sahel 317. An inventory of predators occurring in rice stocks, as well as an assessment of damage brought about by these pests, have been done, to determine abundance and diversity of predators, and losses they have caused too, respectively. Results reveal that four species of pests attack rice stocks namely, and in order of abundance in rice stocks, Rhyzopertha dominica, Sitophilus oryzae, Corcyra cephalonica, and Tribolium castaneum. Of all pests, C. cephalonica is lepidoptera, the others are beetles. Moreover, Rhyzopertha dominica is particularly abundant in paddy rice, whereas Sitophilus oryzae and Corcyra cephalonica are plentiful in white rice. Population of T. castaneum is low in both paddy and white rice. Diversity of the listed species is lower in paddy. In terms of varieties, it is less important in the Sahel 134. Appraisal of losses, which only concerns some varieties of white rice that are among the most widely cultivated in the Senegal River valley, reveals significant losses amounting to 11.11% in three months of storage.
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How to cite this article:
Samba Dembele, Mamecor Faye, Toffène Diome, Cheikh Tidiane Niass, Pape Mbacké Sembène. Inventory and impact of pests of different rice varieties stored in Senegal. International Journal of Entomology Research, Volume 6, Issue 3, 2021, Pages 30-36
International Journal of Entomology Research International Journal of Entomology Research