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.

Golf off (and on) the beaten path Posted on 25 Sep 2013 in the Columns & Research categories.

I have read that 75 percent of the turf related sales is associated with the top 25 percent of the golf courses in the United States. I assume too that Read more»

A special summer job Posted on 20 Aug 2013 in the Columns & Research categories.

For many high school and college students, having a summer job helped pay for school, a car or just a night out. Unfortunately, most students who had a job this Read more»

Can’t see the forest for the trees Posted on 30 Jul 2013 in the Columns & Research categories.

I was heading to work and noticed the neighborhood kids waiting on the street corner for the school bus, as I had a thousand times before. Except this morning I Read more»

Changing of the guard Posted on 01 Jun 2013 in the Columns categories.

June at The Ohio State University and many other universities represents the end of the fiscal year. It’s also a time when retiring faculty officially bid adieu to the university. Read more»

Under the microscope: Pythium blight Posted on 20 May 2013 in the Columns & Research categories.

Pythium blight (pathogen: Pythium spp. P. aultimum, P. aphanidermatum) during hot humid weather can be a serious problem on creeping bentgrass (Agrostis stolonifera) and annual bluegrasss (Poa annua) greens and Read more»

Protecting turf from the sun’s rays Posted on 01 May 2013 in the Columns & Research categories.

Solar radiation consists of a broad spectrum of wavelengths, from very short (cosmic rays) to very long (radio waves). Light that’s visible to the human eye makes up a narrow Read more»