Occurrence of blossom and twig blight caused by Monilinia laxa on plum cultivars
Monilinia ssp. are well-known pathogens affecting fruit production all over the world. Monilinia laxa (Aderhold & Ruhland) Honey is an important species causing blossom and twig blight on stone fruits. The infestation of blossoms and twigs by M. laxa was evaluated after natural infections in Holovousy (Czech Republic) plum orchards in the year 2013. The total infestation of plum trees was evaluated on a scale from 1 NDASH completely infected to 9 NDASH no infection). In total, 2198 trees of 69 plum cultivars were observed in this study. Cultivars ʻNajdonaʼ (8.4), ʻCommon pruneʼ (8.4), ʻElenaʼ (7.8) and ʻPresentaʼ (7.8) were recorded as the most resistant. In contrast, cultivars ʻTopstarʼ (3.8), ʻBluefreʼ (4), ʻEmpressʼ (5.1) and ʻHagantaʼ (5.4) were affected the most.
Jonáš, M., Vávra, R. and Blažek, J. 2017. Occurrence of blossom and twig blight caused by Monilinia laxa on plum cultivars. Acta Hort. (ISHS) 1172:35-40
susceptibility, Prunus domestica, Prunus salicina