2023年2月21日 · Caused by the fungus Puccinia heterospora, hollyhock rust is a disfiguring disease that infects members of the Alcea (hollyhock) family. It begins as yellow spots on top …

2022年1月11日 · Hollyhock leaf spot diseases, which are usually fungal and less often bacterial, are spread primarily by wind, irrigation water, and rain. Leaf spot on hollyhocks usually isn’t …

2023年7月17日 · Leaf spot is a fungal disease that affects the foliage of hollyhocks. It is caused by various fungi, including Cercospora and Septoria, and is characterized by circular or …

2023年5月9日 · hollyhocks cause only minor visual damage, chewing small holes in hollyhock leaves and flowers. However, they can cause serious damage to the overall lifespan of …

Hollyhock rust is a common fungal disease caused by Puccinia malvacearum, affecting various parts of the plant like leaves, stems, and flower parts. Recognizing and understanding its …

Hollyhock rust is the most common fungal leaf disease of hollyhocks (Alcea rosea). Many other ornamentals (e.g., flowering maple, rose mallow) and weeds (e.g., common mallow) in the …

2024年7月15日 · Hollyhock rust is the most common fungal disease among the species. The pathogen Puccinia malvacearum spreads to foliage, leaves, stems, and green flower parts. …

2015年7月24日 · Hollyhock rust is the most common fungal leaf disease of hollyhocks (Alcea rosea). Many other ornamentals (e.g., flowering maple, rose mallow) and weeds (e.g., …

Puccinia malvacearum, the rust fungus that infects hollyhock, causes yellow spots on the upper leaf surface, and orange-brown raised pustules on the lower leaf surface. Wet conditions …

Rust, Puccinia heterospora, is a fungal disease that infects the leaves and stems of hollyhocks. Lower leaves show the condition first, and the disease progresses upward during the growing …