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A leaf spot is a limited, discoloured, diseased area of a leaf that is caused by fungal, bacterial or viral plant diseases, or by injuries from nematodes, insects, ...
Phyllosticta leaf spot Phyllosticta erratica Phyllosticta theae. Pink disease Corticium salmonicolor. Poria root rot and stem canker Poria hypobrunnea. Purple root rot Helicobasidium compactum. Red leaf spot Phoma theicola. Red root rot Ganoderma philippii Poria hypolateritia [1] = Ceriporiopsis hypolateritia [1] Red rust (alga) [2] Cephaleuros ...
Grey leaf spot (GLS) is a foliar fungal disease that affects maize, also known as corn. GLS is considered one of the most significant yield-limiting diseases of corn worldwide. [ 1 ] There are two fungal pathogens that cause GLS: Cercospora zeae-maydis and Cercospora zeina .
Cercospora is a genus of ascomycete fungi. Most species have no known sexual stage, and when the sexual stage is identified, it is in the genus Mycosphaerella. [2] Most species of this genus cause plant diseases, and form leaf spots.
Pseudocercospora purpurea is a fungal plant pathogen that causes a leaf spot on the avocado. Species Cercospora purpurea was originally found on the leaves of Persea species in Georgia, USA in 1878. [2] before the species was transferred to the Pseudocercospora genus in 1976. [1] It is also found in New Zealand and Australia, [3] [4] and Tolima ...
Botryosphaeria obtusa is a plant pathogen that causes frogeye leaf spot, black rot and cankers on many plant species. [1] On the leaf it is referred to as frogeye leaf spot; this phase typically affects tree and shrubs. In fruit such as the apple, cranberry and quince, it is referred to as black rot, and in twigs and trunks it causes cankers. [1]
Leaf spot is a bacterial disease that appears as brown spots with yellow edges. Sanitizing pruners, cleaning pots before repotting, and proper watering can help prevent some of these issues.
Red leaf spot (purple spot) Dimeriella sacchari. Red rot Glomerella tucumanensis = Physalospora tucumanensis Colletotrichum falcatum [anamorph] Red rot of leaf sheath and sprout rot Athelia rolfsii = Pellicularia rolfsii Sclerotium rolfsii [anamorph] Red spot of leaf sheath Mycovellosiella vaginae = Cercospora vaginae. Rhizoctonia sheath and ...