Southern Primorye of the Russian Far East: results of a study of bark beetles (Coleoptera: Scolytinae) and other xylophagous insects in 2022
https://doi.org/10.69536/r9037-0119-8827-e
Abstract
As part of the study of xylophages of potential phytosanitary importance, observations were made of the biological characteristics of bark beetles of the genera Tomicus and Scolytus in forest ecosystems and park plantations of southern Primorye. We studied the biological characteristics of bark beetles, including trophic specialization, phenology, and population dynamics of individual species. Observations of the phenology and ecology of larger pith borer Tomicus pilifer (Spessivtsev, 1919) were carried out in mountain mixed forests (Pinus koraiensis, Abies nephrolepis, Picea jezoensis, Betula dahurica, Betula costata), on the slopes of the southwestern exposure in the vicinity of the village of Anisimovka (Shkotovsky district). We determined the duration and timing of the flight of the Tomicus pilifer in a year with a cold period, which caused a delay in the development of xylophilous insect species. Under laboratory conditions, the timing of pupation, the birth of the young generation of Tomicus pilifer, and previously unknown features of the additional feeding of beetles were traced. It turned out that Tomicus pilifer in the process of additional feeding is able to damage Pinus sylvestris L., gnawing passages inside young shoots. Biological characteristics of 11 species of the genus Scolytus were studied in the forest ecosystems of southern Primorye. Most Scolytus are trophically associated with elms (Ulmaceae). The elm complex of Scolytus represents a potential invasive danger, since all these species successfully develop on Ulmus pumila L., which has a wide range and is actively used in landscaping settlements and park plantings in European Russia. In places where the biology of bark beetles was studied, we collected a xylophilic complex of insects, which, in addition to bark beetles, is dominated by species of the family Cerambycidae. A preliminary assessment of invasion risk by Far Eastern species into European Russia and their distribution in this territory was carried out.
About the Authors
A. V. Petrov
FGBU “VNIIKR”
Russian Federation
Russian Federation
PhD in Biology, Researcher, Department of Forest Quarantine
A. V. Shamaev
FGBU “VNIIKR”
Russian Federation
Russian Federation
Senior Researcher, Pheromone testing and application laboratory
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Review
For citations:
Petrov A.V., Shamaev A.V. Southern Primorye of the Russian Far East: results of a study of bark beetles (Coleoptera: Scolytinae) and other xylophagous insects in 2022. Plant Health and Quarantine. 2023;(1):47-58. (In Russ.) https://doi.org/10.69536/r9037-0119-8827-e
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