Danny Quast Danny H. Quast, CGCS, Owner, DHD Tree Products (Juneau, Wisconsin). Established one of the foremost tree programs for golf courses in the United States. Prior experience includes: Grounds Manager; 1999 PGA Championship, 1990 US Open; Superintenent at the 1989 US Golf Association Mid-Amateur, President, Turf Grass Information Center, Michigan State Library. Board of Director, Wisconsin Golf Course Superintendents Association, Wisconsin Arborist Association, Board of Directors, O.J. Noer Foundation, 1987-present. Read More Read Less