Mycopappus quercus sp. nov., causing frosty mildew inQuercus acutissima
The causal fungus of frosty mildew inQuercus acutissima was taxonomically studied. Brown spots with conical white to yellowish tufts of the causal, fungus developed on the leaves, followed by successive defoliation. The fungus was regarded as a new species ofMycopappus, M. quercus, from the morphology of the multicellular propagules. The ascogenous stage and true conidia of the fungus were not observed, although sclerotia were formed on the fallen diseased leaves.
Key Wordsfrosty mildew Mycopappus quercus Quercus acutissima
Unable to display preview. Download preview PDF.
- Funk, A. and Dorworth, C. E. 1988.Mycosphaerella mycoppapi sp. nov. and its anamorphs on leaves ofAcer macrophyllum. Can. J. Bot.66: 295–297.Google Scholar
- Harada, Y. and Tubaki, K. 1993. White speck ofEuonymus sieboldianus and large concentric leaf sport ofAesculus turbinata, two new diseases of forest trees in Japan. Ann. Phytopath. Soc. Jpn.59: 294 (In Japanese.)Google Scholar
- Suto, Y. 1993. A new foliage disease inQuercus acutissima, frosty mildew. Trans. 104th Ann. Mtg. Jpn. For. Soc.: 617–618. (In Japanese.)Google Scholar
- Suto, Y. 1994. A new foliage disease: frosty mildew inQuercus acutissima. Forest Pests43: 132–135. (In Japanese.)Google Scholar
- Wei, C. Z., Harada, Y. and Katumoto, K. 1998,Mycodidymella aesculi gen. et sp. nov. and its synanamorphsBlastostroma aesculi gen. et sp. nov. andMycopappus aesculi sp. nov. onAesculus turbinata in Japan. Mycologia90: 334–345.Google Scholar