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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 ...
Austropuccinia is a monotypic genus of rust (a type of plant pathogen) native to South America with the only species Austropuccinia psidii, commonly known as myrtle rust, guava rust, or ʻōhiʻa rust. It affects plants in the family Myrtaceae. It is a member of the fungal complex called the guava rust (Puccinia psidii) group. [3]
Fungal diseases; Anthracnose Colletotrichum gloeosporioides; Glomerella cingulata [teleomorph]; Armillaria root rot. Shoestring root rot Armillaria mellea; Rhizomorpha subcorticalis [anamorph]
Pages in category "Avocado tree diseases" The following 24 pages are in this category, out of 24 total. This list may not reflect recent changes. ...
Acevedo clears a tree branch from an avocado tree destroyed by the Mountain fire. The fire damaged or destroyed about 100 of his 300 avocado trees. So far, 4,102 acres of avocados were in the burn ...
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]
Theses leaf spots are an orange-brown rust in color and usually occur entirely on the upper leaf surface, although leaf spots on the undersides of infected leaves have been reported. The spots are fuzzy in texture and approximately 2 cm (0.8 in) in diameter. [ 2 ]
Avocado sunblotch viroid (ASBV, Avsunviroid albamaculaperseae) is a disease affecting avocado trees.. Infections result in lower yields and poorer quality fruit. ASBV is the smallest known viroid that infects plants and is transmitted by pollen and infected seeds or budwood.