Professional paper
EUTYPELLA CANKER (EUTYPELLA PARASITICA DAVIDSON & LORENZ) IN CROATIA
Boris Liović
; Croatian forest research institute
Abstract
The fungus Eutypella parasitica, which causes maple canker in Europe, was discovered in 2005 close to Ljubljana, Slovenia, and in 2007 it was also discovered in Austria. In Croatia, the fungus was
first discovered in 2007 in Prišlin, near the border with Slovenia. In North America, the fungus attacks maple trees, primarily Acer saccharum and A. rubrum. In Slovenia, the disease was found on
field maple (A. campestre) and sycamore (A. pseudoplatanus), while danger still threatens Norwaymaple (A. platanoides). The fungus destroys the cambial layer of cells beneath the bark. Protruding
callus develops around the infected area. Within a Special surveillance program for maple canker, financed by the Croatian Ministry of
Agriculture, in 2011 investigations were conducted in the counties bordering the Republic of Slovenia, in which there are forests with maple species susceptible to the attack of fungi. A smaller number of
investigations were also conducted in several counties in the interior of Croatia, in forests where maple is present. Forest stands were visually examined in order to look for symptoms, suggestive of fungal
attack. In 2011 a total of 566 trees were examined at 25 sites in 7 counties. Symptoms suggestive of infection by the fungus were observed on one tree. A sample was taken for phytopathological analysis and the result for the presence of Eutypella parasitica was negative.
Keywords
Eutypella canker; Special surveillance program; Croatia
Hrčak ID:
93263
URI
Publication date:
15.11.2012.
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