Entomocomplex and health condition of forest shelterbelts of the State Enterprise “Elitne Research Farm of Plant Production Institute named after V. Ya. Yuryev of NAAS”
ARTICLE PDF (Українська)

Keywords

health condition index, xylophagous insects, philophagous insects

How to Cite

Sydorenko, S. V., Zinchenko, O. V., Skrylnyk, Y. Y., Kukina, O. M., & Sydorenko, S. H. (2020). Entomocomplex and health condition of forest shelterbelts of the State Enterprise “Elitne Research Farm of Plant Production Institute named after V. Ya. Yuryev of NAAS”. Forestry and Forest Melioration, (136), 184-193. https://doi.org/10.33220/1026-3365.136.2020.184

Abstract

Forest shelterbelts contribute to the formation of faunal diversity with a specific entomofauna and ecosystem balance, forming at that farmland’s biological value. Stand characteristics, species composition, and health of a field shelterbelt determine the specific habitat of certain insect species and the formation of relevant entomocomplexes. The aim of the study was to estimate the health of the trees in protective forest belts and to specify the entomocomplex for the most common tree species. Field studies were carried out during the growing season using general entomological and forest methods. By their health condition, forest shelterbelts were characterized as weakened and severely weakened: the health condition index of the stands varied from II,1 to III,0. The maple trees had the most optimal condition: the health condition index varied from 1.0 to 2.8 points. In shelterbelts 15, 11, and 38, the health index of oak trees was 2–5% lower than the average health condition index in the stand. The better condition of oak, as compared to other species, was registered only in two shelterbelts The entomological analysis showed that 45 species of insects from 32 genera and 13 families were present in the main forest-forming species in the studied forest shelterbelts. Among them, xylophagous insects were represented by 23 species and philophagous insects by 21 species. In general, 43.2% of the species were rare, widespread and common species made 25% and 22.7 %, respectively, and 9.1% of the species were single. Despite the significant number of identified xylophagous species, most of them can populate only weakened and very weakened trees. The study showed that the combined effect caused by the absence and neglect of forestry and agrotechnical interventions in the shelterbelts caused partial dying of the trees, resulting in the spreading of the foci of pathogens and harmful insects, which invaded individual trees in the forest stands.

https://doi.org/10.33220/1026-3365.136.2020.184
ARTICLE PDF (Українська)
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