An Experimental Study on Colorado Potato Beetle Hibernation Under Natural Conditions
Noskov Y.A. Yaroslavtseva O.N. Tolokonnikova K.P. Zhangissina S. Kryukov V.Yu.
November 2023Journal of Visualized Experiments
Journal of Visualized Experiments
2023#2023Issue 201
One of the major pests of potato Solanum tuberosum L. in the temperate zone is the insect Colorado potato beetle (CPB). Most studies on the immunity and diseases of the CPB are conducted during active feeding stages. Nonetheless, there are fewer studies on resting stages, although these beetles spend most of their life cycle in a state of winter diapause (hibernation). In this work, a method for investigating CPB hibernation under natural conditions was developed and tested, offering an opportunity to collect a sufficient number of individuals in winter. In this article, CPB survival was assessed, and infectious agents at different stages of hibernation were identified. CPB mortality increased during the hibernation, reaching a maximum in April-May. Entomopathogenic fungi (Beauveria, Isaria, and Lecanicillium) and bacteria Bacillus, Sphingobacterium, Peribacillus, Pseudomonas, and Serratia were isolated from the dead insects. The survival rate of the beetles for the entire hibernation period was 61%. No frozen or desiccated beetles were found, indicating the success of the presented method.
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Institute of Systematics and Ecology of Animals of Siberian Branch of Russian Academy of Sciences, Russian Federation
Tomsk State University, Russian Federation
Al-Farabi Kazakh National University, Kazakhstan
Institute of Systematics and Ecology of Animals of Siberian Branch of Russian Academy of Sciences
Tomsk State University
Al-Farabi Kazakh National University
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