New data and observations on the general distribution of powdery mildew of Platanus × hybrida, P. orientalis and P. occidentalis in Hungary.
As a summary of three-year observations and investigations authors first present data on the general distribution and sporadic epidemic occurrence of Erysiphe platani on Platanus × hybrida. At the same time this is the first record of Erysiphe platani on P. orientalis and P. occidentalis in Hungary, and on P. occidentalis in Europe. The fungus has been identified on the bases of its morphological characteristics and ITS sequence data. Some considerations are given for the control of powdery mildew disease.