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2
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Comparison of bark boring species composition on douglas-fir and spruce
Trepáč, Matěj
;
Pešková, Vítězslava
(advisor) ;
Šenfeld, Petr
(referee)
The aim of this bachelor's work was observation and follow-up evaluation of tree trap of Douglas fir, Pseudotsuga menziesii ((Mirbel) Franco, 1950), and Norway spruce, Picea abies ((Linnaeus.) H. Karsten, 1753). This work was focused on the attractiveness of Douglas fir in comparison with Norway spruce, primarily on bark beetles. Two years in sequence 6 pairs of tree trap above mentioned species were evaluated each year at locality Zelená Bouda. Evaluation were made during period of spring attack, before adult bugs were ready for swarming. Four sections were evaluated at each tree trap. The basic method was quantitative comparison based on results that we obtained during this research. Obtained results were recorded into transparent tables and graphs according to individual year with year-on-year comparison. Written evaluation was following behind. Results can be used as a basis for desicion making if Douglas fir is appropriate for growing in ours conditions in larger scale. So far we can presume from obtained results that Douglas fir is less attractive then Norway spruce.
Detailed record
Comparison of bark boring species composition on douglas-fir and pine
Košík, Kamil
;
Pešková, Vítězslava
(advisor) ;
Šenfeld, Petr
(referee)
This work deals a comparison the diversity of species of bark beetles on Douglas fir (Pseudotsuga menziesii Mirb./Franco) and Scots pine (Pinus sylvestris L.). On location the Green Shed in the Central Region of the Czechia were laid 24 traps, so that Douglas fir and Scots pine formed a couple. They were prepared two variants - trees up to 30 years and a trees of 40 - 60 years old. Evaluation took place after four sections in the relative distances. Research has shown that the both species of the trees were not broad spectrum of bark beetles. On Douglas fir it was only a Pityogenes chalcographus L., who was found in only one trap tree at the age of 30 years, and on the Scots pine trap tree was found only Tomicus piniperda L., but it was found in most traps.
Detailed record
See also: similar author names
2
Šenfeld, Pavel
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