CONDITION OF TREE STANDS IN FOCI OF STEELBLUE JEWEL BEETLE (PHAENOPS CYANEA (FABRICIUS, 1775)) IN THE RESULTS OF THE ANALYSIS OF ITS MICROPOPULATIONS

UDC 630*453

 

Sazonov Aleksandr Aleksandrovich – Head of the Forest Pathology Department of First Minsk Forest Inventory Expedition. Republican Unitary Enterprise “Belgosles” (27/1, Zheleznodorozhnaya str., 220089, Minsk, Republic of Belarus). E-mail: lesopatolog@rambler.ru

Kukhta Valery Nikolaevich – PhD (Agricultural), Assistant Professor, the Department of Forest Protection and Wood Science. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: v.kukhta80@gmail.com

Nekrash Vladimir Nikolaevich – leading appraiser engineer, the First Minsk Forest Inventory Expedition. Forest Inventary Republican Unitary Enterprise “Belgosles” (27/1, Zheleznodorozhnaya str., 220089, Minsk, Republic of Belarus). E-mail: vladimir.ledum@gmail.com

Babuľ Dmitry Aleksandrovich – leading appraiser engineer, the First Minsk Forest Inventory Expedition. Forest Inventory Republican Unitary Enterprise “Belgosles” (27/1, Zheleznodorozhnaya str., 220089, Minsk, Republic of Belarus). E-mail: babuld@bk.ru

Patsukevich Pavel Viktorovich – appraiser engineer of the 2hd category the First Minsk Forest Inventory Expedition. Forest Inventory Republican Unitary Enterprise “Belgosles” (27/1, Zheleznodorozhnaya str., 220089, Minsk, Republic of Belarus). E-mail: pavel_photo@inbox.ru

 

DOI: https://doi.org/10.52065/2519-402X-2024-282-12.

 

Key words: Phaenops cyanea, Pinus sylvestris, stem pests, pine stands, micropopulations.

For citation: Sazonov A. A., Kukhta V. N., Babul’ D. A., Nekrash V. N., Patsukevich P. V. Condition of tree stands in foci of Steelblue Jewel Beetle (Phaenops cyanea (Fabricius, 1775)) in the results of the analysis of its micropopulations. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2024, no. 2 (282), pp. 95–105 (In Russian).

DOI: 10.52065/2519-402X-2024-282-12.

Abstract

Based on the results of reconnaissance forest pathological survey, analysis trial areas and model trees in joint foci of Phaenops cyanea (Fabricius, 1775) and Heterobasidion annosum (Fr.) Bref., the dominant role of Ph. cyanea in the complex of stem pests of pine in the Gomel region in 2022 is shown. 13 species of stem pests that colonize the lower part of the trunks of dying pine trees were identified in the foci of root rot. In addition to Ph. cyanea are species such as Monochamus galloprovincialis (Oliv., 1795), Acanthocinus aedilis (L., 1758), Tomicus piniperda (L., 1758), Trypodendron lineatum (Oliv., 1795), Ips sexdentatus (Börn., 1776), Rhagium inquisitor (L., 1758), Spondylis buprestoides (L., 1758), Orthotomicus proximus (Eich., 1867), Pissodes piniphilus (Herbst, 1797), Crypturgus cinereus (Herbst, 1793), Arhopalus rusticus (L., 1758), Cerambycidae sp. (Latreille, 1802). Among them is the occurrence of Ph. cyanea is the highest, this species inhabits from 3.3 to 14.5% of trees. The lower border of the settlement area Ph. cyanea on a tree is at an altitude of 0–0.7 m, and the upper reaches 2.0–20.7 m. Trees drying out with the participation of Ph. cyanea, form three possible types dying off – simultaneous, bottom and mixed. A few hundred beetle larvae and several dozen in young growths of the second age class are enough in order to successfully colonize a tree, leading to its death. In the foci of root rot, the number of borer colonized pine trees can range from 14 to 229 pcs./ha, and the number of pests under the bark can range from 6.2 to 42.4 thousand individuals per 1 hectare.

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References

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01.03.2024