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Alternate hosts of cucumber powdery mildew
Author(s) -
STONE OLWEN M.
Publication year - 1962
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1962.tb06003.x
Subject(s) - powdery mildew , biology , obligate parasite , fungus , cucurbitaceae , obligate , botany , host (biology) , mildew , ecology
SUMMARY Cucumber powdery mildew is a common obligate parasite of glasshouse cucurbit crops in Britain. In the Cucurbitaceae only the genus Luffa was immune to infection. The fungus cannot survive the winter on cucurbits, but may persist on alternate hosts. Several common weeds were susceptible to experimental infection by the fungus and Sonchus asper is a very probable source of re‐infection for cucurbits. Chrysanthemum powdery mildew would not infect cucurbits, nor would the cucurbit mildew infect chrysanthemums.