Sanitary and forest pathology state of coniferous-broad-leaved (mixed) stands in Kaliningrad region

Abstract

The monitoring data of the sanitary and forest pathology state of the forest resources in the Kaliningrad region are presented. The influence of such main factors on the sanitary and forest pathology state of stands for the period from 2019 to 2021 is considered, namely forest fires, unfavorable weather and soil-climatic conditions, the distribution of pests and diseases foci, as well as anthropogenic and non-pathogenic factors. Their threat to forest plantations is analyzed. The main reasons for the plantations death of the forest fund of the Kaliningrad region are highlighted, they are negative weather and soil-climatic conditions (70 % of the total damaged area) and diseases. The results of the distribution of the forest fund areas for reasons with the established weakening and destruction of plantations, the distribution of pests and diseases foci are presented. The main species of insect pest — typographer bark beetle (Ips typographus) — has been determined. The absence of insects — forest pests, listed in the Red Data Books of the Russian Federation and the Kaliningrad region, and classified as quarantine species — was recorded. The impact of negative factors causing the weakening (drying out) of forest plantations in the Kaliningrad region has been analyzed, it is recommended to conduct forest pathological monitoring, sanitary and recreational activities, perform reclamation work, strengthen control over the timing and quality of forest protection measures, and in particular sanitary cuttings, by the authority executive power of the subject and its subordinate institutions.