May 6, 1989 - Don Willeke, chairman of the Minnesota State Shade Tree Advisory Committee; and Dr. David French, professor of plant pathology and forestry resources at the University of Minnesota, discuss tree diseases, treatments, and tree planting at the start of Arbor Month. Willeke and French also answer listener questions.
October 4, 1974 - Committee on shade tree disease and local advocates discuss necessity of removal of diseased shade trees and awareness of shade tree diseases. Also discussed is process for disposing of affected elm and oak trees.