WebJan 31, 2024 · Puccinia horiana Hennings, the causal agent of chrysanthemum white rust, is a worldwide quarantine organism and one of the most important fungal pathogens of Chrysanthemum × morifolium cultivars, which are used for cut flowers and as potted plants in commercial production regions of the world. It was previously reported to be controlled … WebCh Chrysanthemum white rust (Puccinia horiana) was first seen in England late in 1963, on stock originally imported from Japan, and in autumn 1965 over 50 outbreaks …
USDA APHIS Chrysanthemum White Rust
WebApr 10, 2024 · Chrysanthemum white rust, caused by Puccinia horiana Henn., is a major disease in chrysanthemum fields and greenhouses. Puccinia horiana is an autoecious, microcyclic rust fungus that produces basidiospores, which arise from germinating teliospores embedded in the abaxial leaf surface. WebP. horiana is an autoecious microcyclic rust fungus, completing its life cycle on a single host species. Although the pathogen can infect more than 10 chrysanthemum species, it is best known as a pathogen of Chrysanthemum × morifolium, florists’ chrysanthe-mum. The pathogen produces two spore types (14). The basidio- gregory schneider washington post
Identification of resistant sources in chrysanthemum to …
WebChrysanthemum white rust (CWR) is a fungal disease of chrysanthemums caused by Puccinia horiana that can cause severe damage, including complete crop loss due to … WebIndian Phytopathology (2024) 72:513–518 515 1 3 Table 1 Averagediseaseindexforresistancetowhiterustamong49chrysanthemumgenotypesandtheirdiseaseresponse WebSeverely infected plants are weakened and fail to bloom properly. A white rust caused by Puccinia horiana produces yellow spots on the upper leaf surface and tan pustules that turn white with spore production on the … gregory schink raymond james