A RINGLÓFÁK SZILVAHIMLŐ-FERTŐZÖTTSÉGE A DÉLVIDÉKEN
PLUM POX VIRUS INFECTION OF MYROBALAN PLUM TREES IN THE DÉLVIDÉK REGION

Summary/Abstract: Plum pox virus is the most important pathogen of cultivated Prunus species, but it can also infect ornamental and wild species, such as the myrobalan plum. Inside Prunus cerasifera species, present in vast numbers in the Délvidék region, there exists wide divergency both in morphology and resistance to the Plum pox virus. The goal of this research is to obtain information about infection level of myrobalan plum in the Délvidék region, and also to reveal whether red or green leaf plants are more resistant/susceptible to virus disease. On the basis of this research concluded using the DAS-ELISA method, it can be concluded that Prunus cerasifera nigra was significantly less infected than Prunus cerasifera plants with green leaves and yellow fruits. The research has shown that infected myrobalan plum trees serve as a virus reservoir and source of inoculum. Also, this plant can serve as a rootstock for different cultivated Prunus species, hence its health status is very important.

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