Author Archive

About Karl Danneberger, Ph.D.
Karl Danneberger, Ph.D., is a professor in the department of horticulture and crop science at The Ohio State University. He is author of the popular The Turf Doc column that appears monthly in Golfdom. Karl writes on topics ranging from Poa annua to pest control.
Posts by Karl Danneberger, Ph.D.
My first day on the faculty at The Ohio State University was Dec. 1, 1983. On my second day, I went to the Ohio Turfgrass Conference and Show. After registering, Read more»
As a preteen, our family vacations consisted of arduous cross-country trips in a 1963 Chevrolet Bel Air station wagon. Our vacations originated in Illinois and spread to destinations in the Read more»
Driving to work with my air conditioner blasting and “Cherry Cherry” (from the album “Hot August Night”) blaring on the radio, I started reminiscing about my college turfgrass classes. At Read more»
Within the rules of golf, the collar falls in the category of “through the green.” The definition of “through the green” (the term was changed, but more on that later) Read more»
This spring, I headed to Hyde Park Country Club in Cincinnati to meet Superintendent Pat O’Brien. Hyde Park CC is a stately club, established in 1909 with a nine-hole course Read more»
Walking across my lawn in May, I feel bumpiness under my feet. Although not visually apparent, I know bumpy turf is a sign of earthworm casts. Helping verify my diagnosis Read more»