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Puccinia thaliae is the causal agent of canna rust, a fungal disease of Canna. Symptoms include yellow to tan spots on the plant's leaves and stems. Initial disease symptoms will result in scattered sori (clustered sporangia), eventually covering the entirety of the leaf with coalescing postulates.
However, they may fall victim to canna rust, a fungal disease resulting in orange spots on the plant's leaves, caused by over-moist soil. They are also susceptible to certain plant viruses , some of which are Canna -specific , which may result in spotted or streaked leaves, in a mild form, but can finally result in stunted growth and twisted ...
Leaf spots can vary in size, shape, and color depending on the age and type of the cause or pathogen. Plants, shrubs and trees are weakened by the spots on the leaves as they reduce available foliar space for photosynthesis. Other forms of leaf spot diseases include leaf rust, downy mildew and blights. [4]
While these plants are relatively low maintenance, it’s not unusual for peace lily leaves to turn yellow here and there due to stress, pests, or other issues. This guide explains the most common ...
Resembling teeny-tiny snapdragons, these perky little flowers on upright stems come in tons of bright colors including purple, pink, cranberry, bright yellow, pale yellow, orange, and white ...
Blooming in late summer and continuing through fall until the frost arrives, these vibrant flowers feature banana-like leaves and come in stunning shades of red, orange, and yellow, bringing a ...
It manifests itself in rust coloured streaks or mottled markings on the leaves and in colour breaks on the flowers. Sometimes leaves are slightly distorted and puckered. Like many plants under stress, affected cannas will flower very early in the season and before the plant is full height.
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