Spread of fireblight in Greece
In a recent article in Acta Horticulturae, Psallidas has documented the spread of Erwinia amylovora in Greece since its first appearance. The following map shows the districts which were found infested in successive years:
Figure I - Fireblight evolution in Greece chronologically 1984 (1), 1985 (2 and 3),
1986 (4,5), 1987 (6 to 15), 1988 (17 to 21) and 1989 (22-25). Numbers
represent Districts.
Sources
Psallidas, P.G. (1990) Fireblight of pomaceous trees in Greece - evolution of the disease and characteristics of the pathogen Erwinia amylovora.
Acta Horticulturae n°273, 25-32