Host range studies of Myrothecium roridum causing leaf spot in grapevine.

摘要

The leaf spot of grapevine caused by Myrothecium roridum Tode ex Fr. occurs mainly on the leaves but sometimes it also appears on petioles and tender branches in the form of the small, elongated lesions. Thirty plant species belonging to nine different families were artificially inoculated with the spore-cum-mycelial suspension of Myrothecium rondum for host range study. The pathogen proved its wide host rage by infecting 24 plant species of both cultivated and wild plants of different families. Out of 30 plant species, only few species belonged to family Poaceae and Chenopodiaceae and remained free from infection. The studies of host range studies showed that Myrothecium roridum had wide range of infection to different crops of different families.