Zum Einfluß der Stickstoffdüngung auf den Befall der Reben durch Phomopsis viticola SACC.

Effects of nitrogen supply on infection of grapevines by Phomopsis viticola SACC.The influence of nitrogen supply on the infection of grapevine cv. Kerner by Phomopsis viticola was tested in the field. In years favourable for fungus attack, the rate of infection increased when changing from the lowest N dose to the highest one