Date of release: January 22, 2002
Shawn Mehlenbacher, Professor
Horticulture
Oregon State University
“The Oregon Agricultural Experiment Station announces the release of four new hazelnut (Corylus avellana L.) pollenizers, 'Gamma', 'Delta', 'Epsilon' and 'Zeta'. They release pollen at different times during the flowering season. They have complete resistance to eastern filbert blight caused by Anisogramma anomala (Peck) E. Müller. 'Gamma' and 'Delta' carry resistance from 'Gasaway', while 'Epsilon' and 'Zeta' carry resistance from 'Zimmerman'.”
Release document 
Dr. Shawn Mehlenbacher
4145 Agricultural Life Science Building
Oregon State University
Corvallis, OR 97331
Phone - 541-737-5467
Fax - 541-737-3479
mehlenbs@bcc.orst.edu
