Occurrence and peculiarities of tree colonization by stem pests in pine stands weakened by different factors in the forest-steppe part of Kharkiv region
Journal Title: Лісівництво і агролісомеліорація - Year 2016, Vol 129, Issue
Abstract
Six species of invasive stem insect species in pine plantations in the region were detected. Tomicus piniperda L. (39%) dominated in the focus of the root rot, Ips sexdentatus Boern. (47.3%) and Tomicus minor Hart. (41.2%) dominated in the ground fire area. Т. minor Hart. (42.3 %) dominated in the foci of foliage browsing insects. Colonization of Ips acuminatus Gyll. was observed in the area of thin bark. Colonization of Т. minor was found in the area of thin and transition bark. Another aggressive species were found in the area of thick and transition bark. Depending on time when pines are weakened different phenological complex of insects forms under bark of trees. Т. piniperda and T. minor were found in spring. I. acuminatus and sexdentatus were found in spring and summer. Monochamus galloprovincialis Germ. and Phaenops cyaneus Fabr. were found in summer. Colonization of different parts of stem by stem pests depends on the part’s diameter. Insect colonization reduces with diameter. The lower part of tree was the most colonized by stem pests.
Authors and Affiliations
O. Zinchenko
Keywords
Related Articles
- EP ID EP176905
- DOI -
- Views 188
- Downloads 0
Improvement of containerized oak seedlings cultivation technology
Gradually effective microorganisms come into use in forestry. The paper presents the results of containerized oak (Quercus robur L.) seedlings cultivation using microbial fertilizers. The studies were conducted at the gr...
Phytoindication of edaphic regimes of forest ecosystem ecotopes for Dnipro Left-bank Forest-Steppe forestry district of Ukraine
Phytomonitoring with the use of plants as monitors is one of the types of controlling both of the ecological status of forest ecosystems and of the environment (ecological monitoring), in particular, its edaphic changes....
Intraspecific hybrids of scots pine in provenance test of the Left-bank Forest-Steppe
Growth and quality characteristics of Scots pine sibs and halfsibs progenies were analyzed in 37 years old provenance tests in the Left-bank Forest-Steppe. Growth dynamics of progenies by height and diameter was investig...
Influence of the forest belts of different construction on speed of wind and harvest of agricultural crops
Results of research of influence of forest belts on wind speed and agricultural productivity depending on construction of the protective stands in Steppe part of Crimea are presented.
Influence of thermal radiation on forest soils
Forest fires are a powerful environmental factor that breaks the balance between the individual components of forest ecosystems. One of the types of heat distribution during surface fires in forests is thermal radiation....