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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 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 genus Ilarvirus, Citrus variegation virus (CVV) Navel infectious mottling Satsuma dwarf-related virus: Psorosis Citrus psorosis virus (CPsV ...
Pseuderanthemum maculatum, commonly known as yellow-vein eranthemum or golden pseuderanthemum, is a species of evergreen shrub in the family Acanthaceae.It is native to the Solomon Islands and Vanuatu, and has been introduced to other islands of Oceania and to some parts of Southeast Asia, Africa, Central America and South America.
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.
[9]: 401 Several petioles 17–150 cm (6.7–59.1 in) in length extend from the center of the plant which look like giant celery, on which the large leaves (30–70 cm or 12–28 in long and up to 120 cm or 47 in wide) are attached. [5] The leaf's upper surface has depressed veins, and the under surface is shiny with bold yellow veins.
Cucumber leaves afflicted with various stages of Cucumber mosaic virus. A mosaic virus is any virus that causes infected plant foliage to have a mottled appearance. Such viruses come from a variety of unrelated lineages and consequently there is no taxon that unites all mosaic viruses.
Citrus canker is a disease affecting Citrus species caused by the bacterium Xanthomonas (X.axonopodis; X. campestris). Infection causes lesions on the leaves, stems, and fruit of citrus trees, including lime, oranges, and grapefruit. While not harmful to humans, canker significantly affects the vitality of citrus trees, causing leaves and fruit ...
They are dark green above and lighter with prominent yellow veins below, and both surfaces are rough to the touch. The petiole is 0.5–3 cm long and pubescent. The fruit is a large edible fig, 2–3 cm in diameter, ripening from buff-green to yellow or red. They are borne in thick clusters on long branchlets or the leaf axil.