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 ?
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.
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.