THE PHEROMONE OF INVASIVE POPULATIONS OF BARK BEETLE Ips amitinus (Eichhoff) IN RUSSIA HAS NOT BEEN FOUND YET
I. A. Kerchev1, N. I. Kirichenko2,3, Yu. N. Baranchikov2
1Institute of Monitoring of Climatic and Ecological Systems Russian Academy of Sciences, Siberian Branch, Tomsk, Russian Federation
2Krasnoyarsk Science Centre of the Siberian Branch of Russian Academy of Science, V. N. Sukachev Institute of Forest, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation
3Federal State Budgetary Organization All-Russian Plant Quarantine Centre, Krasnoyarsk Branch, Krasnoyarsk, Russian Federation
Keywords: small spruce bark beetle, invasion, protection of Siberian pine forests, pheromone monitoring
Abstract
The small spruce bark beetle ( Ips amitinus (Eichhoff)) is the European species which invaded Siberia providing outbreaks in forests predominated by its new host plant, the Siberian pine ( Pinus sibirica Du Tour). The barrier pheromone traps with dispensers containing synthetic aggregation pheromone of small spruce bark beetle produced by the Russian Quarantine Center (VNIIKR) and the Austrian company Witasek were placed in the pest foci in the Siberian pine forest of the Tomsk Region and regularly checked in June-August 2024. During the period of bark beetle flight, the synthetic pheromones of Russian and Austrian producers attracted no one small spruce bark beetle specimen. Instead, the Russian pheromone attracted specialized entomophagous predator Thanasius femoralis (Zetterstedt) and a number of non-target species of bark beetles and sawyer beetles. The catches on the Austrian pheromone were indistinguishable from control traps in terms of the composition of attracted insect species. The necessity of additional research on the development of efficient pheromone mixtures for monitoring small spruce bark beetle in its secondary range is emphasized.
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