Published March 1974. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The disease cycle for eastern filbert blight requires 2 or more years, including a 12- to 15-month latent period when no visible
symptoms can be detected. In the spring, spores are ejected forcibly (squirted) into the wind and rain. These spores then spread to
young, developing shoots. Infection occurs during...
European hazelnut, Corylus avellana L., is the only economically important nut crop
in the family Betulaceae. One of the threats to the hazelnut industry in the Pacific
Northwest is the fungal disease eastern filbert blight (EFB) caused by the
pyrenomycete Anisogramma anomala. Host genetic resistance to EFB identified in the...
Hazelnuts are produced in many countries, including the United States. Hazelnuts are grown on approximately 30,000 acres in the Willamette Valley, accounting for about 99 percent of U.S. production and 5 percent of world production. Turkey produces more than 70 percent of total world hazelnut production. Hazelnut species that occur...
Published August 1943. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Eastern filbert blight (EFB), caused by Anisogramma anomala (Peck) E.
Miiller, is a devastating disease to orchards of the European hazelnut (Corylus
avellana L.) in the Willamette Valley, Oregon. Host resistance is the most
desirable means of disease control. Fifty-eight hazelnut accessions, including
European cultivars and interspecific hybrids were evaluated...
Reprinted November 1967. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Using bulked segregant analysis, five RAPD markers were identified that were
linked in coupling to a gene conferring complete resistance to eastern filbert blight caused
by Anisogramma anomala (Peck) E. Muller in hazelnut (Corylus avellana L.). Two
modified backcross populations were inoculated and scored for resistance to the pathogen
and...
To identify novel host genetic resistance to eastern filbert blight, caused by the fungus Anisogramma anomala (Peck) E. Muller, ninety European hazelnut {Corylus avellana L.) varieties and interspecific hybrids (with C. americana Marsh, or C. colurna L.) were screened for response to the eastern filbert blight pathogen after inoculation in...