Can Zhang

Occurrence of Black Spot Caused by Alternaria alternata on Celosia cristata L. in Henan Province, China and In Vitro Screening of Control Agents

Celosia cristata is an important ornamental and medicinal plant widely cultivated in China. In July 2025, a severe black spot disease was observed on C. cristata in the Zhang Zhongjing Medicinal Plant Garden, Nanyang, Henan Province, China, resulting in substantial defoliation an...