Management of Ephestia cautella Walker (Lepidoptera: Pyralidae) in Shea (Vitellaria paradoxa C.F. Gaertn) Kernel Stocks Using Insecticidal Plant Extracts  

作　　者：Kambou Siébou François Koussoube Jean Christophe Kam Koï Wenceslas Dingtoumda Oswald Gilbert Wangrawa Wendgida Dimitri Sanon Antoine Ilboudo Zakaria Kambou Siébou François;Koussoube Jean Christophe;Kam Koï Wenceslas;Dingtoumda Oswald Gilbert;Wangrawa Wendgida Dimitri;Sanon Antoine;Ilboudo Zakaria(Laboratoire dEntomologie Fondamentale et Applique, Unit de Formation et de Recherche en Sciences de la Vie et de la Terre (UFR/SVT), Universit Joseph KI-ZERBO, Ouagadougou, Burkina Faso;Centre Universitaire de Tenkodogo, Universit Thomas SANKARA, Ouagadougou, Burkina Faso;Institut Suprieur du Dveloppement Durable, Universit de Fada NGourma, Fada NGourma, Burkina Faso;Dpartement des Sciences de la Vie et de la Terre, Universit Norbert ZONGO, Koudougou, Burkina Faso)

机构地区：[1]Laboratoire dEntomologie Fondamentale et Applique, Unit de Formation et de Recherche en Sciences de la Vie et de la Terre (UFR/SVT), Universit Joseph KI-ZERBO, Ouagadougou, Burkina Faso [2]Centre Universitaire de Tenkodogo, Universit Thomas SANKARA, Ouagadougou, Burkina Faso [3]Institut Suprieur du Dveloppement Durable, Universit de Fada NGourma, Fada NGourma, Burkina Faso [4]Dpartement des Sciences de la Vie et de la Terre, Universit Norbert ZONGO, Koudougou, Burkina Faso

出　　处：《Agricultural Sciences》2024年第12期1476-1486,共11页农业科学(英文)

摘　　要：Many essential oils (EOs) and powders of aromatic plants with insecticidal properties are increasingly considered alternative insecticides to protect stored products against pests. One of these pests is Ephestia cautella Walker, which is a major pest in stored nuts. The larvae of this insect infesting shea kernels cause considerable damage. The aim of this study was to evaluate the effectiveness of neem kernel powder and Eucalyptus camaldulensis essential oil in controlling E. cautella populations in shea kernel stocks. The study involved applying varying concentrations of neem kernel powder and E. camaldulensis EOs to E. cautella adults, larvae and eggs. A quantity of 2 g to 15 g of neem kernel powder caused high mortality rates (77.5% to 95%) of larvae by inhibiting their development. However, these same powder quantities proved ineffective in controlling adults. E. camaldulensis EOs caused 100% mortality in adults with a concentration of 15 µl/l for 24 hours. By direct contact, this oil caused 100% mortality of larvae at a concentration of 3 µl. It had no significant impact on embryonic development. The difference in toxicity observed between the different stages of the insect suggests a control strategy based on combining both bio-pesticides to optimize their effectiveness in protecting shea kernel stocks.Many essential oils (EOs) and powders of aromatic plants with insecticidal properties are increasingly considered alternative insecticides to protect stored products against pests. One of these pests is Ephestia cautella Walker, which is a major pest in stored nuts. The larvae of this insect infesting shea kernels cause considerable damage. The aim of this study was to evaluate the effectiveness of neem kernel powder and Eucalyptus camaldulensis essential oil in controlling E. cautella populations in shea kernel stocks. The study involved applying varying concentrations of neem kernel powder and E. camaldulensis EOs to E. cautella adults, larvae and eggs. A quantity of 2 g to 15 g of neem kernel powder caused high mortality rates (77.5% to 95%) of larvae by inhibiting their development. However, these same powder quantities proved ineffective in controlling adults. E. camaldulensis EOs caused 100% mortality in adults with a concentration of 15 µl/l for 24 hours. By direct contact, this oil caused 100% mortality of larvae at a concentration of 3 µl. It had no significant impact on embryonic development. The difference in toxicity observed between the different stages of the insect suggests a control strategy based on combining both bio-pesticides to optimize their effectiveness in protecting shea kernel stocks.

关 键 词：Biological Control Essential Oils Azadirachta indica Eucalyptus camaldulensis 

分 类 号：O17[理学—数学]