Author Archive

Photo: Karl Danneberger

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.

Fall’s protocol: How to set the foundation for the following year Posted on 23 Sep 2015 in the Columns & Maintenance categories.

Fall is an important time for promoting turf recovery, improving plant health and setting the foundation for the following year. Read more»

Anthracnose: A chronic problem Posted on 05 Aug 2015 in the Columns & Research categories.

An article appeared in the June issue of Golfdom entitled, “The 2015 Fungicide Survey.” The survey asked superintendents, “What is the most difficult disease to control?” The answer by far Read more»

Do the math: Tank mix combinations Posted on 22 Jul 2015 in the Columns & Research categories.

Maintaining high-quality golf course turf during the growing season requires considerable inputs. We add nutrients to promote an ideal growth rate and maintain a healthy turf. We apply synthetic or Read more»

An eye on golf maintenance in Egypt Posted on 12 Jun 2015 in the Columns categories.

In a March 2011 column in this magazine I wrote about the Arab Spring. Feb. 11, 2011, resonated with many Egyptian students here at The Ohio State University, as well Read more»

Hanging out with crabgrass: More than a weed Posted on 18 May 2015 in the Columns categories.

Crabgrass is a ubiquitous weed of turf. Germination starts in January or February in the southern United States and it appears throughout the northern areas in spring as temperatures warm. Read more»

Words and numbers: The importance of Stimpmeter readings and putting green speeds Posted on 09 Apr 2015 in the Columns & Research categories.

In a 1937 issue of Golfdom, Edward (Eddie) Stimpson wrote an article introducing the “Stimpmeter.” An editorial note appeared just prior to the article that was somewhat dismissive of the Read more»