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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Testování použití stromové injektáže jako způsobu ochrany individuálních dřevin jasanu ztepilého Fraxinus excelsior L. proti infekci houbovým patogenem Hymenoscyphus fraxineus
 Rozsypálková, Lucie
In recent years, very good results can be observed in the protection of trees against fungal diseases and insect pests using tree injection technology, so this work aims to test four active substances - tebuconazole, copper hydroxide, sodium selenite and selenium nanotechnology. These were applied by micro-injection to 60 ash trees (Fraxinus excelsior) of the same age and growing in the same climatic conditions. These tree species were inoculated with two srains of Chalara fraxinea prior to injection, and it was verified at the end of the experiment that their pathogenicity was similar. Subsequently, the growth of underbark necrosis was monitored for nine months. Subsequently, analyses of the lengths and areas of the individual root necroses of each variant allowed to confirm the hypotheses. That is, that the most successful in suppressing the pathogen Hymenoscyphus fraxineus would be the product containing selenium nanoparticles and, on the contrary, the least successful would be Champion 50 WP with the active ingredient copper hydroxide.
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