Phoma black spot of edible burdock (Arctium lappa L.) caused by Phoma exigua Desm. var. exigua
Phoma exigua Desm. var. exigua によるゴボウ根黒斑病(新称)

S. KASUYAMA, N. KIRINO, K. TANINA, H. NASU
2008 Japanese Journal of Phytopathology  
KASUYAMA, S. 1 , KIRINO, N. 2 , TANINA, K. 2 * and NASU H. 2 (2008). Phoma black spot of edible burdock (Arctium lappa L.) caused by Phoma exigua Desm. var. exigua. Jpn. J. Phytopathol. 74: 343-345. A new disease of edible burdock (Arctium lappa L.) was observed in Okayama Prefecture in 2002. The fungus consistently isolated from symptomatic roots was identified as Phoma exigua Desm. var. exigua on the basis of morphological characteristics of the fungus, color reaction with 1 N-NaOH on malt
more » ... r and pathogenicity on roots of edible burdock. Phoma black spot (Ne kokuhan-byo in Japanese) of edible burdock (Arctium lappa L.) is proposed for the new disease name. (
doi:10.3186/jjphytopath.74.343 fatcat:gfytbdiknja2ddjjk2xkirvgdm