Submersion as a tactic to destroy beetles of four-eyed fir bark beetle in the bark of fir logs
https://doi.org/10.21266/2079-4304.2025.254.246-255
Abstract
The laboratory experiment was used to determine the time of fir log submersion necessary for complete mortality of the beetles of the four-eyed fir bark beetle Polygraphus proximus Blandf. (Coleoptera: Curculionidae: Scolytinae), a Far Eastern invader. Simultaneously, the fate of a complex of Polygraphus parasitoids: two species of parasitic chalcids Dinotiscus eupterus Walker and Raptrocerus mirus Walker (Hymenoptera: Pteromalidae) – was traced in the processed cuts. At room temperature, 100% mortality of four-eyed fir bark beetle occurred after 3 weeks of submersion and of parasitoids after 4 weeks. In natural conditions, in spring, the submersion time should be increased, because at low temperatures the metabolism of insects may be reduced and their death in anaerobic conditions will occur later. We recommend keeping infested logs under water for at least 6 weeks in spring.
Supporting agencies: The work was performed within the framework of State assignment of IL SB RAS, project no. FWES-2024-0029
About the Authors
Yu. N. Baranchikov
V.N. Sukachev Forest Institute, FRC KSC SB RAS
Russian Federation
Russian Federation
Yuriy N. Baranchikov, PhD (Biological), Head of the Department, Senior
Researcher
Department of Forest Zoology
660036; Akademgorodok 50/28; Krasnoyarsk
A. A. Efremenko
Институт леса им. В.Н. Сукачева ФИЦ КНЦ СО РАН
Russian Federation
Russian Federation
Anton A. Efremenko, Junior Researcher
Department of Forest Zoology
Sukachev Institute of Forest of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences
660036; Akademgorodok 50/28; Krasnoyarsk
Scopus AuthorID: 57950105900. WoS ResearcherID: GPP-2658-2022
D. A. Demidko
Sukachev Institute of Forest of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Denis A. Demidko, PhD (Biological), Researcher
Department of Forest Zoology
660036; Akademgorodok 50/28; Krasnoyarsk
Scopus AuthorID: 14622168900. WoS ResearcherID: FIF-6936-2021
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Review
For citations:
Baranchikov Yu.N., Efremenko A.A., Demidko D.A. Submersion as a tactic to destroy beetles of four-eyed fir bark beetle in the bark of fir logs. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2025;1(254):246-255. (In Russ.) https://doi.org/10.21266/2079-4304.2025.254.246-255
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