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Viral diseases; Citrus mosaic Satsuma dwarf-related virus: Bud union crease Virus for some combinations, otherwise genetic or unknown Citrus leaf rugose genus Ilarvirus, Citrus leaf rugose virus (CLRV) Citrus yellow mosaic genus Badnavirus: Crinkly leaf Crinkly leaf virus (strain of Citrus variegation virus) Infectious variegation
Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... Pages in category "Citrus diseases" The following 8 pages are in this category ...
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Phytophthora citrophthora, also known as brown rot of citrus, is a soil borne oomycete that infects several economically important citrus crops. [1] A diagnostic symptom of P. citrophthora is gummosis, wherein lesions around the base of the tree exude sap. [2]
Citrus stubborn disease can be spread through grafting, so it is important to ensure that the mother tree is free of Spiroplasma citri before propagation. Also, trees should be obtained, if possible from areas where Spiroplasma citri is not viable to prevent bringing the pathogen into an orchard.
Leaf symptoms are generally observed on highly susceptible citrus varieties, such as lemons, as well in poorly-managed orchards. The symptoms generally develop from latent infections after the leaves have died. Red-brown, pin-point dots may develop into larger, circular necrotic lesions with gray centers and red or brown margins. [18] [19]
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Without proper management, the disease can lead to huge losses for citrus growers. In 1901, 10 to 30% of citrus crops in California were lost due to Alternaria citri . Another source states that in India, between 1988 and 1990, more than 20% of mandarins in transport were lost to the disease. [ 10 ]