Cornell turfgrass http://blogs.cornell.edu/turf News and advice for turf professionals from Dr. Frank Rossi Fri, 19 Sep 2014 13:59:14 +0000 en-US hourly 1 http://blogs.cornell.edu/?v=3.8.1.1 ShortCUTT highlights: Week 20 http://blogs.cornell.edu/turf/2014/09/19/shortcutt-highlights-week-20/ http://blogs.cornell.edu/turf/2014/09/19/shortcutt-highlights-week-20/#comments Fri, 19 Sep 2014 13:59:14 +0000 http://blogs.cornell.edu/turf/?p=1131 To receive the weekly ShortCUTT newsletter, join NYSTA or subscribe directly.

Highlights for week of September 15 include:

  • ForeCast: A significant change in the weather pattern expected this week with very cool air. Expect temps for the week about 6 to 8 degrees F below normal. Long term model calling for cooler and day over the next two weeks.  Visit the ForeCast website for the latest turf-related weather.
  • Spotty dryness becoming widespread in southeast New England and Hudson Valley.
  • Grubs arrive — finally.
  • Heat stress and summer patch.
  • Fairy rings.
  • Late-season N — reduce rates.
  • Thatch collapse.
  • And more.
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ShortCUTT highlights: Week 19 http://blogs.cornell.edu/turf/2014/09/04/shortcutt-highlights-week-19/ http://blogs.cornell.edu/turf/2014/09/04/shortcutt-highlights-week-19/#comments Thu, 04 Sep 2014 20:01:52 +0000 http://blogs.cornell.edu/turf/?p=1124 To receive the weekly ShortCUTT newsletter, join NYSTA or subscribe directly.

Highlights for week of September 1 include:

  • ForeCast: On average, last few weeks have been 4 to 8 degrees above normal with widespread heat stress. Degree day totals lagging behind 15-year average. Majority of the region below normal for rainfall. Long-term models call for cool and normal precip.  Visit the ForeCast website for the latest turf-related weather.
  • Dealing with cutworms.
  • Late-season fertilization.
  • Fall dollar spot.
  • And more.
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ShortCUTT highlights: Week 18 http://blogs.cornell.edu/turf/2014/08/19/shortcutt-highlights-week-18/ http://blogs.cornell.edu/turf/2014/08/19/shortcutt-highlights-week-18/#comments Tue, 19 Aug 2014 20:47:09 +0000 http://blogs.cornell.edu/turf/?p=1122 To receive the weekly ShortCUTT newsletter, join NYSTA or subscribe directly.

Highlights for week of August 18 include:

  • ForeCast: Another cooler week with temps 2 to 4 degrees F below normal. Very minor heat stress along I-95 corridor. Islip, N.Y. received a record 13 inches of rain in two hours, but the rest of the state is on the dry side. Visit the ForeCast website for the latest turf-related weather.
  • It’s time to seed!
  • Golf courses can help retain and filter water from extreme rain events.
  • Release of nitrous oxide — a potent greenhouse gas — from turf.
  • Dealing with Japanese stiltgrass.
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ShortCUTT highlights: Week 17 http://blogs.cornell.edu/turf/2014/08/12/shortcutt-highlights-week-17/ http://blogs.cornell.edu/turf/2014/08/12/shortcutt-highlights-week-17/#comments Tue, 12 Aug 2014 13:25:44 +0000 http://blogs.cornell.edu/turf/?p=1120 To receive the weekly ShortCUTT newsletter, join NYSTA or subscribe directly.

Highlights for week of August 11 include:

  • ForeCast: Another cooler than normal week, but still with heat stress in many areas. Cool nights have helped with recovery.  Visit the ForeCast website for the latest turf-related weather.
  • Acetic acid and other reduced risk herbicides.
  • Localized dry spot on putting greens.
  • Sports turf playability assessment. See paper here.
  • Potassium and anthracnose.
  • SDHI fungicide update.
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They said it: Frank Rossi in The New York Times http://blogs.cornell.edu/turf/2014/08/10/they-said-it-frank-rossi-in-the-new-york-times/ http://blogs.cornell.edu/turf/2014/08/10/they-said-it-frank-rossi-in-the-new-york-times/#comments Sun, 10 Aug 2014 12:19:27 +0000 http://blogs.cornell.edu/turf/?p=1118 Frank Rossi

Frank Rossi

From How Important Is a Perfect Lawn When You’re Selling Your Home? [New York Times 2014-08-06]:

“The simplest way to not screw up your lawn is to set your mower as high as it will go and make sure your mower blade is very sharp, so you’re cutting the grass blade, not tearing it. When you cut it lower, the grass doesn’t have the leaf material to do the photosynthesis that it needs to sustain itself. … The best time to take care of our lawns in northern climates is in the fall: Labor Day to Halloween. Any grass seed you put down at that time should do fairly well.”

Read the whole article.

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ShortCUTT highlights: Week 16 http://blogs.cornell.edu/turf/2014/08/01/shortcutt-highlights-week-16/ http://blogs.cornell.edu/turf/2014/08/01/shortcutt-highlights-week-16/#comments Fri, 01 Aug 2014 16:06:44 +0000 http://blogs.cornell.edu/turf/?p=1115 To receive the weekly ShortCUTT newsletter, join NYSTA or subscribe directly.

Highlights for week of July 28 include:

  • ForeCast: Despite a cooler than normal week, low rainfall is causing widespread heat stress in the Northeast. Still behind last year’s GDDs, but right on the 15-year average. Long-term weather models calling for normal temperatures and plentiful precipitation. Visit the ForeCast website for the latest turf-related weather.
  • Time to begin planning for fall recovery and renovations.
  • Best control options for pythium.
  • Best strategies for summer coring.
  • New options for establishment herbicides.
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ShortCUTT highlights: Week 15 http://blogs.cornell.edu/turf/2014/07/25/shortcutt-highlights-week-15/ http://blogs.cornell.edu/turf/2014/07/25/shortcutt-highlights-week-15/#comments Fri, 25 Jul 2014 21:16:05 +0000 http://blogs.cornell.edu/turf/?p=1112 To receive the weekly ShortCUTT newsletter, join NYSTA or subscribe directly.

Highlights for week of July 21 include:

  • ForeCast:  Another week of near normal weather. Growing degee days are right about normal for the 15 year average. High heat stress was present across the region. A normal temp week expected with highs in the 80’s and lows in the 60’s.Visit the ForeCast website for the latest turf-related weather.
  • Focus is on keeping the grass you have alive for the next month, not growing new grass. Unless of course you are in the Scholastic sports turf management field.
  • New herbicide formulations coming
  • Chinch bugs in high grass/fescue areas
  • Tools you need to closely monitor soil moisture
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Video: Drone provides bird’s-eye view for turf researchers http://blogs.cornell.edu/turf/2014/07/25/video-drone-provides-birds-eye-view-for-turf-researchers/ http://blogs.cornell.edu/turf/2014/07/25/video-drone-provides-birds-eye-view-for-turf-researchers/#comments Fri, 25 Jul 2014 21:01:13 +0000 http://blogs.cornell.edu/turf/?p=1110
Mary Thurn, research support specialist with the Cornell Turfgrass Program, demonstrates how she uses the [make and model] drone to get an aerial view of turf research plots.

Above: Mary Thurn, research support specialist with the Cornell Turfgrass Program, demonstrates how she uses a DJI Phantom Aerial UAV Drone Quadcopter with GoPro camera drone to get an aerial view of turf research plots.

Cornell Turfgrass Program researchers are employing a drone this summer to take aerial photos of their research plots.

“Of course we still collect data. But with the bird’s-eye view, you can see things that you can’t see readily — or at all — from the ground,” says research support specialist Mary Thurn. “We can also send pictures to collaborators who can’t visit the site in person and they can still see treatment differences for themselves.”

Drones may prove to be a practical tool for turf managers, too, Thurn points out. For example, a golf course superintendent could fly one around the course to spot stressed grass that may need water, fertilizer or pest management attention before the problem gets too severe.

Aerial images can show differences not readily visible at ground level.

Aerial images can show differences not readily visible at ground level.

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ShortCUTT highlights: Week 14 http://blogs.cornell.edu/turf/2014/07/15/shortcutt-highlights-week-13-2/ http://blogs.cornell.edu/turf/2014/07/15/shortcutt-highlights-week-13-2/#comments Tue, 15 Jul 2014 19:04:46 +0000 http://blogs.cornell.edu/turf/?p=1107 To receive the weekly ShortCUTT newsletter, join NYSTA or subscribe directly.

Highlights for week of July 14 include:

  • ForeCast: More widespread heat stress last week. Expect high heat stress early in the week and with prolonged leaf wetness lots of foliar disease pressure. Cool temps usher in the weekend and what appears to be a shift in the pattern to cooler than normal. Visit the ForeCast website for the latest turf-related weather.
  • Summer patch samples starting to flow in to diagnostic labs.
  • Have a history of Summer patch? Work to alleviate compaction, but also be sure your manganese applications are consistent
  • Use wetting agents to relieve localized dry spots.
  • Mild conditions in May and June, with timely rain for most people, may have masked annual bluegrass weevil activity.
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ShortCUTT highlights: Week 13 http://blogs.cornell.edu/turf/2014/07/14/shortcutt-highlights-week-13/ http://blogs.cornell.edu/turf/2014/07/14/shortcutt-highlights-week-13/#comments Mon, 14 Jul 2014 13:38:40 +0000 http://blogs.cornell.edu/turf/?p=1102 To receive the weekly ShortCUTT newsletter, join NYSTA or subscribe directly.

Highlights for week of July 7 include:

  • ForeCast: Widespread heat stress throughout the Northeast. Widespead 1- to 2-inch rainfall, but drought stress still an issue with shallow-rooted turf. Visit the ForeCast website for the latest turf-related weather.
  • Crabgrass is surging. Read about best ways to control larger plants.
  • Beginning to see anthracnose problems, particularly on annual bluegrass putting surfaces that have structural problems of low-light, high surface organic matter, and management issues — too lean on nitrogen and too low mowing heights.
  • Football (Americans call it soccer) players prefer natural turf, study finds. A selected group of professional players, representing professional soccer players in North America believe that there is an increased risk of injury, specifically non-contact injury, as a result of training and competing on synthetic turf (3rd generation infilled) compared to natural turf.
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