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 pustulates. Both leaf surfaces, although more predominant on the underside (abaxial) of the leaf, will show yellow to brownish spore-producing these pustulate structures, and these are the signs of the disease. Spots on the upper leaf-surface coalesce and turn to brown-to-black as the disease progresses. Infection spots will become necrotic with time, with small holes (3 to 5mm) developing in older leaves. These infected leaves eventually become dry and prematurely fall.
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| - Puccinia thaliae (en)
- Puccinia thaliae (nl)
- Puccinia thaliae (sv)
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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 pustulates. Both leaf surfaces, although more predominant on the underside (abaxial) of the leaf, will show yellow to brownish spore-producing these pustulate structures, and these are the signs of the disease. Spots on the upper leaf-surface coalesce and turn to brown-to-black as the disease progresses. Infection spots will become necrotic with time, with small holes (3 to 5mm) developing in older leaves. These infected leaves eventually become dry and prematurely fall. (en)
- Puccinia thaliae is een schimmel uit de familie Pucciniaceae, die op Canna-soorten voorkomt. De schimmel tast bij planten de bladeren en stengels aan. (nl)
- Puccinia thaliae är en svampart som beskrevs av Dietel 1899. Puccinia thaliae ingår i släktet Puccinia och familjen Pucciniaceae. Inga underarter finns listade i Catalogue of Life. (sv)
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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 pustulates. Both leaf surfaces, although more predominant on the underside (abaxial) of the leaf, will show yellow to brownish spore-producing these pustulate structures, and these are the signs of the disease. Spots on the upper leaf-surface coalesce and turn to brown-to-black as the disease progresses. Infection spots will become necrotic with time, with small holes (3 to 5mm) developing in older leaves. These infected leaves eventually become dry and prematurely fall. (en)
- Puccinia thaliae is een schimmel uit de familie Pucciniaceae, die op Canna-soorten voorkomt. De schimmel tast bij planten de bladeren en stengels aan. (nl)
- Puccinia thaliae är en svampart som beskrevs av Dietel 1899. Puccinia thaliae ingår i släktet Puccinia och familjen Pucciniaceae. Inga underarter finns listade i Catalogue of Life. (sv)
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