文摘
Clematis manshurica Pupr. is a perennial herb in the Ranunculaceae family, which has been used as a valuable traditional Chinese medicine. Between 2012 and 2013, a powdery mildew causing significant damage to plants of C. manshurica occurred in the Medicinal Herb Garden in Shenyang Agricultural University, Liaoning province, China. The fungus from symptomatic tissues was identified as Erysiphe aquilegiae based on morphological characteristics and rDNA ITS sequence analysis. To the best of our knowledge, this is the first formal report of powdery mildew on C. manshurica caused by E. aquilegiae in China.