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Spots and discoloration areas can be smaller than 0.25 inches (6.4 mm) in size, but under optimal conditions can grow much larger eventually forming lesions. The spots will often turn a grayish color and will be outlined in black. Extreme wilting and a drying appearance on the leaves is also a major symptom of Pestalotiopsis palm. [1]
Yellow spots are larger and in greater abundance to give the appearance of chlorosis. During the final stage, roughly 6 years after the first symptoms are recorded, the yellow/bronze fronds start to decrease in size and number. Finally, all the leaves coalesce, leaving just the trunk of the palm “standing like a telephone pole”. [6]
Dyshidrosis is a type of dermatitis, characterized by itchy vesicles of 1–2 mm in size, on the palms of the hands, sides of fingers, or bottoms of the feet. [8] Outbreaks usually conclude within three to four weeks, but often recur. [4] [8] Repeated attacks may result in fissures and skin thickening. [7] The cause of the condition is not ...
Keratolysis exfoliativa (also known as"lamellar dyshidrosis", [1] "recurrent focal palmar peeling", [2] "recurrent palmar peeling" [1]: 212 [2]) is a sometimes harmless, sometimes painful skin condition that can affect the focal surface of the fingers and/or the palm or soles of the feet.
Ganoderma zonatum is a plant pathogen that infects the palm species causing butt rot. It is a fungus that infects the bottom 122–152 centimeters (4–5 feet) of the plant also rotting the roots. It has been known to be in both natural and planted environments and in the majority of cases only in palms.
All of these trees have been observed to have the same symptoms. The complete host range of this phytoplasma strain is not known. [2] [6] If the palm tree is mature enough to produce fruit, it will experience two major symptoms. Premature drop of the majority or all of the fruit, within a short time period (about three days), is an obvious symptom.
Leaf spot Mycosphaerella horii Mycosphaerella lageniformis. Mal secco Phoma tracheiphila = Deuterophoma tracheiphila. Mancha foliar de los citricos Alternaria limicola: Melanose Diaporthe citri. Phomopsis citri [anamorph] Mucor fruit rot Mucor paronychia Mucor racemosus. Mushroom root rot = shoestring root rot or oak root fungus Armillaria mellea
Catacauma leaf spot Phaeochoropsis mucosa: Damping off: Fusarium spp. Phytophthora spp. Pythium spp. Rhizoctonia solani. Dry basal rot Ceratocystis paradoxa (Thielaviopsis paradoxa, anamorph) Ganoderma butt rot: Ganoderma orbiforme G. tornatum G. zonatum. Graphiola leaf spot Graphiola phoenicis: Gray leaf blight Pestalotiopsis palmarum ...