Ascochyta leaf blight

Ascochyta leaf blight


Most resources indicate that Ascochyta leaf blight is a minor disease because injury is usually temporary, and does not result in turf loss. Kentucky bluegrass is most commonly affected, but infection of other cool-season grasses is also possible. Outbreaks of this disease have been common as far west as central Nebraska this year.

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Late season crabgrass contamination

Mid-season crabgrass management and control


This time of year, especially in turf thinned by drought, disease, traffic or other afflictions, crabgrass and other summer annuals may pop up, even if the turf was treated with an effective preemergence product. No product is 100% effective even when applied correctly “Escapes” may occur for a number of reasons including misapplication. Regardless of the reason or type of turf area, older and larger crabgrass is much more difficult to control than younger plants, making mid-season the optimal time to control crabgrass post emergence.

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Thermometer showing high temperatures

High temps are hard on cool-season grasses


I just returned from a trip to the Pacific Northwest where it was a cool 70F. To get caught up on field research, I headed straight to the field where the heat index was 104F. I’ll share the mysteries and importance of temperature acclimation in a future article, but I was not adjusted to those temperatures. The heat and humidity are just as stressful to the turf we manage. The following was adapted from a Turf iNfo prepared by former UNL professor Zac Reicher.

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Keenan Loder Amundsen

Amundsen promoted to full professor


Dr. Keenan Loder Amundsen is an important member of our turfgrass sciences team and is being promoted to full professor in August 2022. Keenan joined the University of Nebraska-Lincoln Turfgrass Sciences team as a Turfgrass Geneticist in 2011. Interviewing in January of that same year, the John Seaton Anderson Turfgrass Research Facility near Mead was under several inches of snow, and he couldn’t see the turfgrass germplasm that he’d soon be studying. Keenan and his family moved to Lincoln in May to start his career as an Assistant Professor of Turfgrass Genetics.

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