Influence of climate changes in the Czech Republic on the distribution of plant viruses and phytoplasmas originally from the mediterranean subtropical region

摘要

Results of research aiming at monitoring of climate changes impact on plant pathogens distribution such as Zucchini yellow mosaic virus (ZYMV), quarantine Plum pox virus (PPV) and quarantine phytoplasma European stone fruit yellows (ESFY) are presented here. ZYMV has spread from Northern Italy across Austria up to Central Moravia and Bohemia. PPV has been continuously spreading from the lowlands of Central Bohemia and Moravia up to plains. Later, from the sixties and seventies of the last century, due to climate warming and human activities the virus quickly spread to uplands, foothills and mountains of the Czech Republic. Phytoplasma ESFY was spreading in a manner similar to ZYMV in the eighties of the twentieth century from Northern Italy and currently is affecting mainly apricot and peach trees in Southern Moravia.