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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.

Turf MD: In a growth drag race, Poa wins Posted on 15 Apr 2025 in the Research & Current Issue & From the Magazine categories.

Key differences between Poa annua and creeping bentgrass on golf courses. Read more»

TurfMD: The rise of fungicide- resistant bluegrass Posted on 21 Mar 2025 in the Research & Current Issue & From the Magazine categories.

Early spring is like Christmas time in lawn and landscape stores across the country. Strolling through these stores, you’ll see a plethora of products designed to give you that green Read more»

TurfMD: Focusing on the moisture component of winter injury Posted on 25 Feb 2025 in the Columns & Current Issue & From the Magazine categories.

As winter arrives for most of the northern U.S., turfgrass survival becomes a concern for parts of the country where injury has occurred in the past. Read more»

Turf MD: Danneberger discusses the race against saltwater damage Posted on 29 Jan 2025 in the From the Magazine & Columns & Featured categories.

The corrosive effect of salt can occur quickly. On golf courses, salt water, can cause damage to turfgrass equipment. Read more»

Turf MD: Danneberger explores the misleading truth behind climate havens Posted on 09 Dec 2024 in the Current Issue & Columns & From the Magazine categories.

Science Editor Karl Danneberger, Ph.D., explores the potential dangers that come from underestimating climate havens. Read more»

Turf MD: Danneberger explores the evolution of golf course innovation and turf management Posted on 21 Oct 2024 in the Columns & Current Issue & From the Magazine categories.

Karl Danneberger, Ph.D., talks innovation in the golf industry and encourages supers to be a leader in change. Read more»