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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
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]
A major grower said this week it was abandoning its citrus growing operations, reflecting the headwinds Florida's signature crops are facing following a series of hurricanes and tree diseases.
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.
Open form of the large Citrus psorosis ophiovirus particle. Negative-contrast electron micrograph (uranyl acetate); bar: 100 nm. Citrus psorosis ophiovirus is a plant pathogenic virus infecting citrus plants worldwide. [2] It is considered the most serious and detrimental virus pathogen of these trees.
Citrus exocortis is a disease of citrus plants, caused by the Citrus exocortis viroid (CEVd, Pospiviroid exocortiscitri). It can cause stunted growth and reduced yields in affected plants. The disease is also sometimes called "scalybutt". [1] CEVd can also infect tomato plants. The resulting disease is sometimes called "tomato bunchy top ...
A double graft union of diamante citron upon sour orange rootstock. Sour orange: the only rootstock that truly is an orange (the Citrus × aurantium or bitter orange). It is vigorous and highly drought-resistant. Poncirus trifoliata: a close relative of the genus Citrus, sometimes classified as Citrus trifoliata.
Citrus greening is distinguished by the common symptoms of yellowing of the veins and adjacent tissues (hence the "yellow dragon" name given by observing Chaozhou farmers as early as the 1870s [1]); followed by splotchy mottling of the entire leaf, premature defoliation, dieback of twigs, decay of feeder rootlets and lateral roots, and decline in vigor, ultimately followed by the death of the ...