Species composition of phytopathogenic micromycetes of tree crops on Rosaceae in the Kaliningrad region
Keywords:
fruit trees, mycopathogens, ascomycete fungi, diseases of trees.Abstract
The results of surveys of cultivated trees of Rosaceae family in the Kaliningrad region are presented. As many as 30 species of micromycetes belonging to 11 orders from 5 classes of Ascomycota were found. The most dangerous species for industrial gardening were Botryosphaeria stevensii Shoemaker, Neonectria ditissima (Tul. & C. Tul.) Samuels & Rossman, Monilinia fructigena Honey, Monilinia laxa (Aderh. & Ruhland) Honey, Venturia carpophila E.E. Fisher, Venturia inaequalis (Cooke) G. Winter and Venturia pirina Aderh. In case of their wide distribution on the territory of the region, they are able to cause severe economic losses due to deterioration of product quality, yield decrease and devastation of production during storage. Acknowledgement of species composition and dispersal of diseases of fruit trees should provide correct evaluation of phytosanitary situation in the region, predict its changes in the agroecosystems and timely protect the crops for yield loss minimization.