"What can I do about the black spots on my quaking aspen trees?" is a common refrain around Idaho in July and August. University of Idaho Extension has recently publish a new Current Information Series on Leaf Spot of Aspen and Popular. While black spot has a genetic susceptibility component, this publication, written by Dr. Bill Bohl describes the symptoms and lets you know what you can do culturally and chemically to help suppress this unsightly disease on your quakes.Read it at http://www.cals.uidaho.edu/edComm/pdf/CIS/CIS1202.pdf
No comments:
Post a Comment