Incidence of brown rot blossom blight (Monilinia laxa [Aderhold & Ruhland]) and fruit rot in organic sour cherry production in Hungary

I. J. Holb, T. Szabó, S. Thurzó, J. Nyéki, G. Drén, J. Racskó, Z. Szabó, M. Soltész, Zs Veres

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)


Brown rot (Monilinia laxa (Aderhold & Ruhland)) blossom blight and fruit rot incidence were evaluated on three sour cherry (Prunus cerasus L.) cultivars ('Kántorjánosi', 'Ujfehértói fürtös', 'Érdi botermo') in an organic sour cherry orchard in Hungary in 2003 and 2004. Trees were grown according to the organic fruit production guidelines and small untreated plots were set up for each cultivar in both years. Blossom blight and fruit rot were the highest on 'Érdi botermo' in both years. In 2003, both blossom blight and fruit rot incidences were low even in the untreated plots (less than 15% and 5%, respectively). In 2004, brown rot incidence reached 55% for blossom blight and 25% for fruit rot in the untreated plots. Blossom blight incidence was 1.5 to 2 times higher on 'Érdi botermo' compared to 'Kántorjánosi' or 'Üjfehértói fürtös'. During 80% of the 'Érdi botermo' bloom period, weather was rainy and cold, therefore, resulting in severe blossom and serious twig blights in the untreated plots (up to 55%). Only half as much damage was found in those organic plots that were treated with three fungicide applications during the bloom. Fruit rot incidence was highly related to rainfall during fruit maturation in 2004. Right before the harvest of'Érdi botermo', due to an intensive rainy period, about 35% of the fruit were cracked, which resulted in up to 25% infection of M. laxa on the harvested fruit. Fruit rot incidence was no more than 5% on 'Ká ntorjánosi' and 'Üjfehértói fürtös'.

Original languageEnglish
Title of host publicationProceedings of the 5th International Cherry Symposium
PublisherInternational Society for Horticultural Science
Number of pages6
ISBN (Print)9789066055513
Publication statusPublished - Jan 1 2008
Event5th International Cherry Symposium - Bursa, Turkey
Duration: Jun 6 2005Jun 10 2005

Publication series

NameActa Horticulturae
Volume795 PART 2
ISSN (Print)0567-7572


Other5th International Cherry Symposium



  • Disease
  • Phytopathology
  • Prunus cerasus

ASJC Scopus subject areas

  • Horticulture

Cite this

Holb, I. J., Szabó, T., Thurzó, S., Nyéki, J., Drén, G., Racskó, J., Szabó, Z., Soltész, M., & Veres, Z. (2008). Incidence of brown rot blossom blight (Monilinia laxa [Aderhold & Ruhland]) and fruit rot in organic sour cherry production in Hungary. In Proceedings of the 5th International Cherry Symposium (pp. 913-918). (Acta Horticulturae; Vol. 795 PART 2). International Society for Horticultural Science.