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.

Spring colors: Turfgrass differences in the spring Posted on 15 Apr 2016 in the Columns categories.

Of all the seasons, spring is where we see the greatest differences in growth and color among the turfgrass species caused by weather. Greens often appear as a patchwork of Read more»

Understanding the complex workings of Stomata Posted on 07 Mar 2016 in the Columns categories.

Stomata are simple structures defined as a pore and accompanying guard cells. Occupying less than 1 percent of the leaf surface, stomata are gatekeepers between resources a plant needs, like Read more»

Dress appropriately: The evolution of women’s golf apparel Posted on 18 Feb 2016 in the Columns categories.

This past summer, Renata, one of my graduate students, received an internship offer from the USGA’s Green Section. She asked me about proper attire for the internship. Telling students what Read more»

Practice what you teach: Adhere to course maintenance routines Posted on 25 Jan 2016 in the Columns & Maintenance categories.

Another holiday season is over and we have months of winter to look forward to. That means this is a lethargic time for me. My time is mainly spent eating Read more»

How to draw former golfers back with the moment of anticipation Posted on 04 Dec 2015 in the Columns categories.

This past year I bought a 1969 Pontiac Firebird. I didn’t buy it because I had some deep passion, although I did have a ’67 Camaro 327 in high school. Read more»

A call to duty: USGA Green Section a blessing for the golf industry Posted on 13 Nov 2015 in the Columns & Research categories.

In 1920, Inverness Country Club, Toledo, Ohio, played host to the U.S. Open. At the time, the greens chairman complained about — or maybe brought to light — the lack Read more»