| detection of citrus psorosis virus in the northwestern citrus production area of argentina by using an improved tas-elisa. | citrus psorosis in argentina is a serious disease. citrus is produced in two regions located in the northeast (ne) and northwest (nw) area of the country. these two areas have different climates and soil types, and therefore different citrus species and varieties are cultivated. in the ne region, psorosis is epidemic, and in the nw region, the disease was described on several occasions since 1938, but it is not observed commonly in the orchards. recently, trees with symptoms of psorosis were obs ... | 2006 | 16872685 |