WebMay 18, 2024 · Chrysanthemum White Rust, caused by the fungus Puccinia horiana P. Henn., is a quarantine significant pest in the United States (Title 7, Code of Federal Regulations, Part 319.37 and 319.74).Importation of certain Chrysanthemum (including Dendranthema), Leucanthemella, and Nipponanthemum species are prohibited from … WebA whole-plant method for screening chrysanthemum cultivars for resistance to white rust is described, finding some cultivars showed some infection but were rated as practically immune or immune. SUMMARY A whole-plant method for screening chrysanthemum cultivars for resistance to white rust is described. Of 270 cultivars of the florists’ …
USDA APHIS Chrysanthemum White Rust
WebFeb 16, 2024 · Chrysanthemum white rust originated in eastern Asia. It is now established in the Far East, Europe, Africa, Australia, Central America and South America. There … grassington afternoon tea
Treating Mum Plant Disease And Pests - Gardening Know How
WebPage 2 of 3 Twelve species of chrysanthemum are known to be susceptible to white rust. These include pot mums, spray mums, and garden mums (Dendranthema X grandiflorum = Chrysanthemum morifolium), Nippon daisy (Nipponicanthemum nipponicum = C. nipponicum) and High daisy (C. pacificum = Ajania pacifica).Species that WebOct 1, 2024 · Chrysanthemum white rust is a regulated pathogen in many countries. Susceptible genotypes affect the quality and production of commercial chrysanthemum … WebChrysanthemum 'Cathy's Rust' daisy chrysanthemum. There are two photographs of Chrysanthemum 'Cathy's Rust' in the JCRA's photograph collection. Close. Close. Become a Member Give to the Arboretum. Now Showing. Events. Jun. 14. Tue. Evening Garden Stroll 4:30 pm. Jun. 15. Wed. ... grassington arts festival