ISHS Acta Horticulturae 472: XVII International Symposium Virus and Virus-Like Diseases of Temperate Fruit Crops
SURVEY OF SHARKA DISEASE (PLUM POX VIRUS) ON STONE FRUIT TREES IN CHILE |
| Authors: | G. Herrera, P. Sepúlveda, M. Madariaga |
| Keywords: | sharka, Chile, infection rate, geographic regions |
| Abstract:
A survey of sharka disease, caused by plum pox virus, was conducted in Chile during the 1995–96, 1996–97, and 1997–98 growing seasons. The species surveyed were peaches, apricots, plums and nectarines. The samples were taken at random places following an imaginary line from the orchard's outer border to the center. All the samples were processed by ELISA with PPV antiserum from Sanofi (France). The results indicated that PPV is present in all stone fruit growing areas. The virus was detected in peaches, apricots, plums and nectarines. PPV was identified in 15.2% from a total of 10,051 samples collected during the three growing seasons. The mean percentage of PPV infection among different regions was 11.9–18.5%. The stone fruit species had higher PPV infection rates with 15.3% and 17.2% for peaches and nectarines, respectively. Meanwhile, the PPV infection rates for plums and apricots were 8.3% and 1.9%, respectively. PPV symptoms were observed in the Santiago Metropolitan Region (R. Metropolitana); no symptoms were observed in other surveyed areas. | |
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