PSEUDOMONAS-SYRINGAE PV. SYRINGAE CAUSAL AGENT OF DISEASE ON FLORAL BUDS OF ACTINIDIA-DELICIOSA (A. CHEV) LIANG ET FERGUSON IN ITALY

Pseudomonas syringae pv. syringae as causal agent of floral buds necro sis, has been isolated from kiwifruit plants cv. Hayward in Italy. The pathogen has been identified on the basis of morphological, biochemic al and physiological features and also on the basis of pathogenicity. Symptoms, similar to those caused by Pseudomonas viridiflava - brownin g and darkening on floral buds, have been observed on kiwifruit plants in a wide area in the North of Latium region (central Italy), in Vite rbo province.