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Magazine - Articles by Karl Danneberger

775.JPG Growth Regulators
10 Jun 2012 - Consultancy - Karl Danneberger
In the last 30 years, plant growth regulator (PGR) use has progressed from a marginal or niche application to an integral part of golf course management programmes.
frost Frost Explained
24 Jul 2008 - Consultancy - Karl Danneberger
Frost is an interesting process that occurs on clear cold nights when turfgrass plants reradiate heat (exothermic reaction). As the plant loses heat to the atmosphere the plant leaf cools. If the plant temperature is cooler than the air temperature then moisture from the atmosphere will condense on the leaf. Should the leaf temperature drop below freezing then the water freezes and frost forms. This will occur even if the air temperatures are slightly above freezing. At this time of the year it is not uncommon to have frost form even if the air temperature is in the mid to high 30's.