psorosis

psorosis

[sə′rō·səs]
(plant pathology)
A virus disease of tangerine, grapefruit, and sweet orange trees characterized by scaly bark, a gummy exudate, retarded growth, small yellow leaves, and dieback of twigs. Also known as scaly bark.
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References in periodicals archive ?
Polyclonal antibodies against the recombinantly expressed coat protein of the Citrus psorosis virus.
The CCPP has its roots in the 1930s, when Professor Howard Fawcett of the UC Citrus Experiment Station in Riverside discovered the viral nature of the graft-transmissible disease citrus psorosis -- the discovery that triggered the establishment of the Psorosis Free Program.
In Spain the efforts are concentrated on Clementine mandarins for disease resistance (tristeza and psorosis) and fruit quality (seedless).
La principales enfermedades que afectan los citricos en Venezuela son: a) las de origen viral: Tristeza de los citricos (CTV), Psorosis (CpSV), Leprosis (CiLV), Exocortis (CEVd), y Caquexia (CCa); b) las de origen fungoso: Gomosis (Phytophthora spp.), Muerte regresiva (Lasiodiploidia theobromae), Antracnosis (Colletotrichum gloesporoides Penz Sacc), Mancha grasienta (Mycosphaerella citri); Mancha septoria (Septoria citri), y Sarna o verrugosis (Sphaceloma fawcetii); las causada por bacterias: cancer de los citricos (Xanthomonas axonopodis pv.