مهدی پیرنیا - Ph.D. Student, Science & Research Branch, Islamic Azad University, Tehran, Iran (E-mail: pirnia@ymail.com)
رسول زارع - Research Prof., Department of Botany, Iranian Research Institute of Plant Protection, P.O. Box ۱۴۵۴, Tehran ۱۹۳۹۵, Iran
حمیدرضا زمانی زاده - Associate Prof., Science & Research Branch, Islamic Azad University, Tehran, Iran
اکبر خداپرست - Associate Prof., Department of Plant Protection, University of Guilan, Rasht, Iran

Eight species of the genus Cercospora from different localities in Northern provinces of Iran were obtained and examined during spring-autumn ۲۰۱۰. Cercospora acnidae (from Amaranthus chlorostachys var. chlorostachys), C. beticola (from Beta vulgaris), C. iridis (from Iris sp.), C. lactucae-sativae (from Lactuca sativa), C. mercurialis (from Mercurialis annua), C. sorghi (from Sorghum halepense) and C. zonata (from Vicia faba) were identified. Furthermore, C. apii is identified from Abutilon theophrasti, Euphorbia heterophylla, Solanum lycopersicum, Pelargonium zonale, Vigna sinensis and Zanthedeschia aethiopica. Among these, C. acnidae, C. apii, C. iridis, and C. mercurialis are new records and Sorghum halepense is new host for C. sorghi in Iran.

new record, fungi, host plant, Leaf spot