Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2010
Volume 13
Issue 4
Topic:
Forestry
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Borkowski A. 2010. A METHOD OF ESTIMATION OF THE TOTAL DENSITY OF INFESTATION OF SCOTS PINE STEMS BY THE LESSER PINE SHOOT BEETLE (TOMICUS MINOR), EJPAU 13(4), #14.
Available Online: http://www.ejpau.media.pl/volume13/issue4/abs-14.html

A METHOD OF ESTIMATION OF THE TOTAL DENSITY OF INFESTATION OF SCOTS PINE STEMS BY THE LESSER PINE SHOOT BEETLE (TOMICUS MINOR)

Andrzej Borkowski
Department of Ecology and Environment Protection, Institute of Biology, Jan Kochanowski University of Kielce, Poland

 

ABSTRACT


Results of studies on colonization of Pinus sylvestris trap trees by Tomicus minor are presented. The scheme of spatial distribution of density of this bark beetle nests agrees with spatial distribution of colonization frequency in individual sections of the bole. Beetles most frequently colonized the middle parts of the bole, occurring most frequently (59.5%) and reaching the greatest density of nests (14.8%) in the eighth one-meter section of the trap tree bole. The linear relationships between nest numbers in distinguished one-meter sections of the bole and the total density of the bole colonization are determined. In the case of the eighth section, counting from the butt, the correlation was strongest (R2 = 0.5877, P < 0.0001), and the mean relative error of estimation was smallest (49.46%).

Key words: Pinus sylvestris, Tomicus minor, attack pattern, stem infestation.


Andrzej Borkowski
Department of Ecology and Environment Protection,
Institute of Biology, Jan Kochanowski University of Kielce, Poland
15 Świętokrzyska, 25-406 Kielce, Poland
phone (0-41) 349 63 19
email: andrzej.borkowski@ujk.edu.pl

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.