Abstract
Abstract A description is provided for Septoria lepidii . Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf mortality. Clearly-defined leaf spots are not produced. Instead the whole leaf becomes discolored, turning pale brown or fawn, with the discoloration spreading from infection sites. Conidiomata are then produced as the whole leaf dies. HOSTS: Cardaria draba, C. propinqua, C. pubescens, C. repens (syn. : Lepidium repens ), Lepidium affine, L. campestre, L. heterophyllum, L. latifolium, L. officinale, L. perfoliatum, L. sativum, L. sibiricum, L. smithii, L. vesicatorium (Brassicaceae). [Type host - L. heterophyllum .] GEOGRAPHICAL DISTRIBUTION: Asia: Armenia, Azerbaijan, Republic of Georgia, Iran, Kazakhstan, Kirghizistan, Russia (West Siberia), Tadzhikistan, Turkmenistan, Uzbekistan. Europe: Austria, Belgium, Denmark, Estonia, France, Germany, Ireland, Italy, Hungary, Moldova, Netherlands, Portugal, Romania, Russia, Spain, UK, Ukraine, former Yugoslavia. North America: USA. TRANSMISSION: Not reported, but almost certainly by air-borne or splash dispersed conidia, also from infected plant débris.
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