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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 ...
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
Citrus × meyeri, the Meyer lemon (Chinese: 梅爾檸檬; pinyin: méiěr níngméng), [1] is a hybrid citrus fruit native to China. It is a cross between a citron and a mandarin/pomelo hybrid. [2] Mature trees are around 6 to 10 ft (2 to 3 m) tall with dark green shiny leaves. The flowers are white with a purple base and are fragrant.
Citrus had been Florida's premier crop for years until disease caught up with it starting in the 1990s with citrus canker and later greening. Citrus canker, a bacterial disease, is not harmful to ...
Symptoms of citrus greening are numerous, and can be varied in citrus trees. A tree will develop yellow shoots instead of the expected deep green colors. The disease presents itself on the leaves by giving an asymmetrical blotchy-mottle appearance. This is the key diagnosing characteristic of citrus greening.
Diaphorina citri, the Asian citrus psyllid, is a sap-sucking, hemipteran bug now in the taxonomic family Liviidae. [1] It is one of two confirmed vectors of citrus greening disease. [2] [3] It has a wide distribution in southern Asia and has spread to other citrus growing regions.
Citrus greening, also known as huanglongbing, associated with the presence of a bacterium Liberibacter asiaticum, is an example of a plant pathogen that has coevolved with its insect vector, the "Asian citrus psyllid", ACP, Diaphorina citri, such that the pathogen causes little or no harm to the insect, but causes a major disease which can ...
The name comes from Hyūga, the ancient name of Miyazaki Prefecture in Kyushu, where the citrus is said to have originated, while "natsu" (夏) means summer. Hyūganatsu grown outside Kyushu are sometimes shipped under different names such as Konatsu ( 小夏 ), Tosakonatsu ( 土佐小夏 ), or New Summer Orange ( ニューサマーオレンジ ).