New Sunflower Disease Caused by Fusarium tabacinum. A. Zazzerini, Institute for Plant Pathology, University of Perugia, Borgo XX Biugno, 74-06100 Perugia, Italy. L. Tosi, Institute for Plant Pathology, University of Perugia, Borgo XX Biugno, 74-06100 Perugia, Italy. Plant Dis. 71:1043-1044. Accepted for publication 3 April 1987. Copyright 1987 The American Phytopathological Society. DOI: 10.1094/PD-71-1043.

A new disease of sunflower (Helianthus annuus) caused by Fusarium tabacinum was reported from Italy for the first time. All cultivars tested were susceptible to the pathogen. The symptoms, occurring only on stems, consisted of external necrotic streaks and a pale pinkish red discoloration of the pith.

Keyword(s): pith canker.