New wilt and Crown Rot disease in Basil (Ocimum basilicum L.)
2002 Volume 56 Issue 1 Pages 31-36
Details
2002 Volume 56 Issue 1 Pages 31-36
In November 1999, wilt was found on basil in Okinawa prefecture, Japan. The infected plants showed various symptoms including wilt, leaf chlorosis, stem necrosis and partial or total defoliation. Fusarium oxysporum Schlechtendahl: Fries. was consistently isolated from the stem of the diseased plants. Based on the pathogenicity test applied to 17 plant species belonging to 5 families by the root dipping method with a conidial suspension (3×10^5 conidia per milliliter), wilt and defoliation were observed only on basil. F. oxysporum was exclusively recovered from the inoculated plants. Based on these results, the fungus isolated from a dead stem was found to be the pathogen of this disease and was identified as Fusarium oxysporum Schlechtendahl: Fries f. sp. basilicum Dzidzariya. This is the first report of Fusarium Wilt and Crown Rot of basil in Japan.
