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Leaf spots Bipolaris sorokiniana; Cochliobolus sativus [teleomorph] ... Viruslike diseases; Sunblotch Avocado sunblotch viroid: Trunk pitting Graft transmissible agent
Sphaceloma perseae is a plant-pathogenic fungus in the division Ascomycota. [1] It infects the avocado plant (Persea americana), a tree native to Central America and Mexico.. Currently there are three cultivars of avocados in large-scale agricultural production: Guatemalan, Mexican, and West Ind
Symptoms in the leaf are uncommon but include bleached veins and petioles. Rectangular cracking patterns also occur in the bark of older branches. The amount of viroid particles present in avocado trees varies a great deal. Viroids levels can vary by 1000 times between branches on the same tree and by 10000 times between trees.
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 ...
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. ...
In 2007, an avocado tree near Jacksonville, FL was found showing symptoms of laurel wilt, and the laurel wilt fungus was confirmed to be present in the tree. [10] Field and laboratory observations have since confirmed that the redbay ambrosia beetle will infest avocado trees, although there may be some variation in how susceptible different ...
Avocado leaves contain a toxic fatty acid derivative, persin, which in sufficient quantity can cause colic in horses and without veterinary treatment, death. [115] The symptoms include gastrointestinal irritation, vomiting, diarrhea, respiratory distress, congestion, fluid accumulation around the tissues of the heart, and even death.
Consumption of the leaves and bark of the avocado tree, or the skin and pit of the avocado fruit have been shown to have the following effects: [2] [7] In birds, which are particularly sensitive to the avocado toxin, the symptoms are: increased heart rate, myocardial tissue damage, subcutaneous edema of the neck and pectoral regions, labored breathing, disordered plumage, unrest, weakness ...