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Rose rosette disease – This disease is caused by a relatively recently described virus, Rose rosette emaravirus, [10] that is transmitted by an eriophyid, rose leaf curl mite (Phyllocoptes fructiphilus), which inhabits the shoot tips and leaf petal bases of roses, as well as by grafting but not by seed or many other common vectors.
Chondrostereum purpureum is a fungal plant pathogen which causes Silver leaf disease of trees. It attacks most species of the rose family Rosaceae, particularly the genus Prunus. The disease is progressive and often fatal. The common name is taken from the progressive silvering of leaves on affected branches.
Rose leaf rosette-associated virus is a +ssRNA [1] [2] closterovirus [3] [4] [5] [6] [7] [1] which causes a unique, unusually dense and small rosette leaf habit on ...
Sawfly larvae, which are particularly a problem for roses, feed on leaves with a chewing mouthpart that causes "window-paning," an effect that happens when insects eat the material between leaf ...
It is known to infect roses (Rosa spp.), in which it causes witch's broom and sometimes excessive growth of prickles. The virus is transmitted by a microscopic Eriophyid mite Phyllocoptes fructiphilus. [3] The disease takes 3–4 years to properly phenotype and thus is a hard disease to breed resistance to the virus. [4]
The roses have significant value and interest for those growing roses in tropical and semi-tropical regions, since they are highly resistant to both nematode damage and the fungal diseases that plague rose culture in hot, humid areas. Most of these roses are thought to be Old Garden Rose cultivars that have otherwise dropped out of cultivation ...
Rose leaf rosette-associated virus; S. Specific replant disease; Sphaerulina rehmiana This page was last edited on 25 April 2020, at 03:15 (UTC). Text ...
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