National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Monitoring zdravotního stavu douglasky tisolisté Pseudotsuga menziesii v oblasti Orlických hor
Tylš, Pavel
Douglas fir Pseudotsuga menziesii [Mirb.] Franco is a non-native species in the Czech Republic. This thesis should contribute to discussion about the advantages and disadvantages of using Douglas fir as a commercial tree species from the point of view of health condition. A component of the thesis is monitoring the health of Douglas fir in 15 stands on LS Rychnov nad Kněžnou, where Douglas fir grows in mixture stands with spruce Picea abies. A comparison is made between Douglas fir and spruce. Several originators of degradation of health condition were found in stands. No signs of deterioration in health condition were found in 40% of stands. The most frequent species was dark honey fungus Armillaria ostoyae and cooley spruce gall adelgid Gilletteella cooleyi. Rhabdocline needle cast Rhabdocline pseudotsugae was proven only in two stands. The Swiss needle cast Phaeocryptopus gaeumannii has not been proven at all.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.