Monilinia blossom blight in experimental plantings of sweet and sour cherries

摘要

Very favourable weather conditions for Monilinia laxa infections appeared during flowering sweet and sour cherries in 2014 in Holovousy (Czech Republic). The aim of this study was to record the average value of the attack and the highest attack of Monilinia laxa for the particular cultivar. In our orchard we evaluated two parameters: intensity of blossom infestation (scale 0-4; 0- without infestation; 4 - whole flower infested and seared) and the total flower infestation of the tree (scale 1 -9,1 - without infestation; 9 - 100 % of tree affected). In total 24 sweet cherry cultivars and 23 sour cherry cultivars were evaluated. 'Regina' and 'S.H. Giant' appeared as the most resistant sweet cherry cultivars and 'Jade', 'Jachim' and 'Spinell' appeared as the most resistant sour cherry cultivars from the overall assessment.