Edging Sprinkler Heads

Before edging

Golf courses all have routine maintenance work that must be completed.  Whether it's mowing greens, raking bunkers, topdressing, edging curbs, etc., course superintendents balance there weekly routine with miscellaneous items that must be addressed.  Although sometimes difficult to get to, tending to the details is what can take a golf course to the next level.  Edging sprinkler heads is one of these detail items that is fairly involved and we don't seem to be able to get to it as often as we'd like.  This week, due to milder weather and a lack of hand watering greens, we've committed to completing this project.

 

When eding sprinkler heads, the crew takes the project hole by hole, locating the heads and then marking them with wire flags.  Once they are marked, a weed-eater with a special attachment is used to edge the sprinkler head.  Lastly a blower is used to clean off the head and pull the flag to indicate it is finished.  By the time the crew finishes today, they will have edged over 750 sprinkler heads on the golf course.

This edging has several benefits, it cleans up the head and makes the yardages on the lid more visible.  Edging also allows the head to function properly by keeping the Bermuda from growing down inside the head.

After edging

 

Plum Hollow Greens Department: Beating the Heat

Here is a fantastic video created by Adam Garr, superintendent at Plum Hollow Country Club.  Although this video was shot in Pennsylvania, the concepts and practices employed, are utilized here as well.
  
Plum Hollow Greens Department: Beating the Heat

Greens Syringing

The greens syringe team has been out each afternoon for the past few weeks and we've had several incidents of people hitting into them while they are cooling off the greens.  Our main focus during the afternoon is to keep the greens cooled off and the staff works diligently to keep out of the way of play.  However, there are times when holding up play is unavoidable.  When the employee pulls the flagstick out of the cup, we'd please ask that golfers just give us a few moments to get the green watered.  Once the flag is put back in the cup, play can resume.  We realize that it can frustrating to have to wait, but appreciate your patience during this time of year.

Venting Greens

This morning the agronomy staff is venting greens with bayonet tines on our new walking greens aerator.  These knife-like tines create a small slit in the surface but create a hole 3.5" deep.  As mentioned in the video, this process has several great benefits: improves water infiltration, increases soil oxygen content, releases CO2 trapped in the root zone, allows for the upper 3-4 inches of the profile to dry more consistently, creating a firmer putting surface.  Healthy roots equate to a healthy turf, which will be better suited to handle the harsh conditions of our Oklahoma summers.  This process will be repeated every two weeks until the weather cools off in the fall.

#8 Native Area

#8 before the conversion

I was digging around in some old photos earlier and I came across a photo of #8 before the native conversion and it caught my eye.  The new native area on #8 has been established for long enough now that I'd forgotten what it used to look like.  I think that bringing the native area around to the front of the tee boxes adds more character to the hole, as well as some intimidation to an otherwise short par 3.

#8 after the conversion

Tee aeration

#6 tee 

Yesterday the agronomy staff began core aeration of the front nine tee boxes.  This process uses our Soil Reliever aerator with 3/4" hollow tines.  Once the aerator is finished with a tee box, the cores are left to dry for a few minutes before the metal drag mat is used to break them up.  Breaking up the cores separates the soil from the thatch so it can be reincorporated into the canopy.  Then the tee box is blown off and mowed.  All the front nine tee boxes were completed yesterday.  The remaining tee boxes will be finished on next Tuesday when we are closed.  We appreciate everyone's patience during this time.

Slicing Fairways

Slicing #1 fairway

With a busy Memorial Day weekend behind us and with prime growing conditions for the Bermuda, the agronomy staff is out this week slicing fairways.  The machine we use for this process is called an Aerway Shattertine aerator.  The great aspect of using this type of machine, is that although it leaves a small slit at the surface, it has a much bigger impact in the soil.  The tines are curved which causes the soil to be pushed to one side, fracturing it as they come back out.  This "shattering" effect has several benefits, reducing the compaction that has built up and allowing improved drainage and oxygen content in the soil.  All of these improvements will result in a better root zone and healthier turf.  Staff will be out mowing and blowing fairways later this week in an effort to further clean things up for the weekend.  

Mowing #11 Fairway

Bermuda Encroachment in Greens

Chalky residue from Tupersan application

Each season, we enter into a power struggle between the warm-season Bermudagrass collars and the cool-season Bentgrass putting greens.  The lateral growth habit, and aggressive nature, of Bermudagrass during the summer is at odds with the Bentgrass just trying to survive.  This can cause

Slot created from edger

the Bermudagrass to creep into the greens, therefore reducing the size of the greens over time.  Allowing greens to shrink has several negative impacts: more difficult to hit with an approach shot, reduction in pin locations, and foot traffic is concentrated within a smaller area which will affect turf quality.

At the start of spring, when the collars begin to green up, we use two popular methods to prevent this encroachment from occurring.  First, we spray a pre-emergent product called Tupersan.  This herbicide has the ability to prevent the Bermudagrass from rooting into the green with no negative effects to the underlying Bentgrass.  Doug, our chemical technician, applies this product along the edge of the green every 4 weeks throughout the growing season.  The second method we use is weekly edging of the green.  A walk-behind edger is used to cut down approximately two inches into the soil to sever the Bermudagrass stolons that are creeping into the greens edge.  This weekly process will continue until the Bermudagrass goes dormant again this fall.        

Building a Base

Putting green 4.5" root depth

In harsh environments, the ultimate success and sustainability of any putting surface is the ability to maintain deep, dense roots.  The greens here at Bailey Ranch are Creeping Bentgrass which is a cool-season turf that can tends to grow in cooler, more temperate northern regions.  It can, however, tolerate periods intense heat and drought if the plant has sufficient root mass to gather water and nutrients.  For turf managers in the "transition zone", the goal each spring and fall is to grow roots as deeply as possible so there is a better chance to survive whatever harsh conditions the next summer will bring.

Chipping green 7.5" root depth

Root depths are monitored throughout the year and this morning I went around and selected 4-6 greens to audit.  I was pleased to have such a good starting point to work off of since we are now phasing out of winter and into our busy spring growing season.  As I went around, I did notice a big disparity between the original greens (PG,#9,#17, etc..) and the recently renovated chipping green.  I took pictures of the root depths of the putting green and chipping green and you can see from the pictures to the right, that there is a striking difference in depth.
Since putting green soil is comprised of mostly sand, roots must be present for the sand to hold together.  This allows for a good visual indicator of rooting depth and density.  If you look at the pictures to the right you'll see a darker, almost layered composition of the putting green soil profile versus a lighter, more consistent soil profile in the chipping green.  This difference is due to a renovation that was completed on the chipping green in the fall of 2011.  The putting green has 20 years of organic matter built up in it.  You'll notice the cylindrical shaped root mass sticking out of the bottom of the putting green plug.  This is a core aeration hole, confirming the benefits of the process.  The agronomy staff plans to continue an aggressive greens maintenance schedule in order to bring the soil profiles on these older greens up to standard.  Our goal is to have all the greens at the depths you see to the right.
If you have any questions regarding greens maintenance, don't hesitate to ask.  Thanks!

New Flag Design

A new flag design was unveiled today. The checkered flag design has been replaced with a plain white flag with a black border.  The idea to change the design was born from some issues that were realized while using the checkered flags.  The old flags were much heavier which caused the flag sticks to lean and bend under windy conditions.  The old flags were also expensive and difficult to see at a distance.
The new,simplified look accomplishes several objectives.  First, they are much lighter and will not wear out the flag sticks, and cups, as fast.  Second, less fabric allows the flag to accurately display softer wind conditions, and direction, during your approach shot.  Finally, due to less fabric and stitching, they are much more cost effective to replace.  We sincerely hope you enjoy the new course accessories!

#14 Cart Path Project

It's hard to miss the cart path work near #14 forward tees that began this week.  As of today the creek crossing is completely gone and carts are being diverted to the east.
For years, the cart path has been slowly falling a part due to erosion from heavy rains.  Wednesday the Public Works department began demolishing the old creek crossing to make way for the new structure.  You'll notice quite a bit of additional dirt work being done to both the upstream and downstream side where the channel is being straightened and widened to make room for the new drainage structure.  The original pipe was 18", this new crossing will have two 24" pipes and wing walls to help guide the water through the pipe.
Once the new pipe is laid into place, the structure
will be back filled and new cart paths installed.  Finish grading and sod will be the last steps.  Weather depending, we hope to have this project completed by the end of next week.  Cart access will be maintained at all times and we appreciate everyone's patience during the remainder of the project.

March Greens Aeration

Despite the cool, sometimes cloudy, conditions over the past few days, the agronomy staff worked diligently to complete the March greens aeration on schedule.  Over the years, I've detailed the core aeration process on this blog, so I won't go into too much detail but the following pictures should shed some light on a few of the major steps required.  As with all core aerations, the sand-filled holes will be evident for about 7-10 days before they completely heal in.  During this time, the agronomy staff will be mowing and rolling the greens to maintain the highest quality putting surfaces possible.  We thank you for your patience and understanding during this time.  If you have any further questions, feel free to contact me.

Soil cores are removed from greens

Cores are pushed to the collar and removed

Once cores are cleaned off, USGA topdressing sand is applied

After sand is incorporated into holes, excess sand is blown off greens

Green is then rolled smooth and watered in

Grass Fire Danger

After an incident that occured on #1 fairway yesterday afternoon, I thought I would take an opportunity to remind all members and guests that while the Bermuda is dormant, there continues to be a high risk of grass fire.  The agronomy staff would ask that caution be used when disposing of cigarettes and cigars on the golf course.  The picture to the right shows how quickly fire can spread.  Thankfully the staff reacted quickly and was able to use the irrigation system to extinguish the fire.

Cart Path Repair

Removing old cart path

Starting last Thursday March 14th, staff began the process of repairing a section of cart path near #12 tee complex.  Anyone who has played golf out here recently knows this area was in need of attention and we are pleased to be able to get this fixed before the busy golf season starts.  The old cart path was removed with a mini-excavator and the soil beneath was leveled.  Once we had the area graded, we installed the wood forms and the gravel base.  Today, the new concrete was installed and finish textured with a soft broom.  This area should be ready for cart traffic in a few days.  The area has been marked to divert cart traffic around the area to the west.  We would appreciate everyone take caution through this area.  Next week, staff will remove the forms, backfill soil along the edges, and install sod.  

Cart path ready for concrete

New cart path poured and finished

Metal Recycling Update

The metal recycling project I posted about back in early February has been completed.  After recycling almost 30 tons of metal, we cleared out all remaining vegetation and checked our grade.  Ag base was then spread around to keep the area from becoming muddy or overgrown.  The picture on the right shows the area all finished with equipment in it's rightful place.  The main reason we took on this project was to get all these tractors and implements out of the main parking lot to create more space for staff members and guests to park their vehicles.  Now we have a functional side lot for equipment, and much more parking for our seasonal staff and vendors.

Golf Course Restrooms

You can definitely tell spring is here.  Warmer weather is becoming more common and golfers are starting to fill the tee sheet.  The turf staff felt that now would be as good a time as any to officially open the restrooms on #7 tee box.  As you may recall, these restrooms are closed each winter so that the pipes to not freeze.  If any deep freezes are forecast, we may have to momentarily close down the restrooms, but they will remain open otherwise.  Thanks for your patience during the off-season.

Greens Aeration

On March 18^th & 19th, the agronomy staff will busy core aerating greens.  Aeration is the best way for us to improve turf health and playing conditions.  Turf health is improved by reducing compaction from foot traffic, increasing root oxygen levels, and improving drainage.  Improving the drainage will positively affect the playing conditions by providing a firmer, smoother putting surface.

Monday the front nine will be closed so we can finish the process as efficiently as possible.  Tuesday the front nine will be back open and the back nine will be closed.  All 18 holes will be back open on Wednesday.  We appreciate your patience and understanding during this process.  If you have any questions regarding this project, feel free to contact me at the phone number below.  Thanks!

            

GPS Mapping

Today, with the help of the Jeff Bain at the City of Owasso Engineering Department, we began GPS mapping the irrigation system.  The ability to accurately, and quickly, locate valves, electrical wire splices, sprinkler heads, etc. is critical when troubleshooting a problem with the system.  Currently we are using 20 year old, hand drawn, maps that are not to scale.  Accurate irrigation as-builts are critical to the proper repair and maintenance of golf course irrigation and drainage infrastructure.  Over the next few weeks, Jeff will be out on the course mapping as much as he can.  We plan on mapping every component of the irrigation system including: fittings, pipe size, and  pipe length.  Once we have the irrigation system complete, we will move on to the drainage system which includes: drain basins, pipe size, pipe length, green and bunker flush outs, and drain outlets.  Once all the data points are collected, they will be labeled and can then be overlayed onto GIS aerial images (similar to Google Earth).  We can then print maps, or use tablets, to dependably locate infrastructure items no matter if they are buried, or grown over.  I cannot thank Jeff enough for his efforts and the time he is donating for this project.  Just another example of city departments lending a hand to make the whole city better.   

  

  

Annual Bluegrass Control in Bermuda

Annual Bluegrass, or Poa, is considered one of the most invasive weeds golf course superintendents must deal with each year.  It can prove to be extremely difficult to remove from any turf species.  This plant seeds profusely and it can seemingly breakthrough even the best defenses.  Over the past six years, we've taken a very aggressive stance with our Poa control in all maintained Bermuda.  Each winter, all  Bermuda is treated with pre-emergent, and post-emergent herbicides to eradicate this weed.  Even with accurate application methods and perfect timing, we could only achieve 85-90% success, requiring some further applications to completely remove the weed.

In the fall of 2010, we tried a new pre-emergent product called Specticle.  We've been using this new product each spring since then with fantastic results.  This new chemistry has the ability to not only control a wide range of weeds before emergence, but can control juvenile Poa plants that have emerged just before the product is applied.  The ability of this product to control Poa after emergence allows the agronomy staff to move on the next task, instead of having to spray the area again with different products.
The picture to the right shows an effected Annual Bluegrass plant that emerged before the Specticle application.  It took a few weeks for the symptoms to appear, but this plant has been killed.  The effectiveness of this new chemistry has allowed the agronomy staff to keep the tees, fairways, and rough weed free.  This has improved the overall health of the Bermuda by reducing competition of the weeds for sunlight, water, and nutrients.  If we get some quality rainfall this spring, we expect to have fantastic playing conditions.

Spring Weed Control

Spring is almost upon us and I wanted to take a minute to remind everyone that if they haven't yet treated their lawns with pre-emergent herbicides, now is the time.  Successful crabgrass control can be achieved if products are applied up to mid-April.  A mild spring most likely will bring on broadleaf weeds, such as dandelion, much sooner than normal.  In order to be successful with pre-emergent herbicides, it is better to be a week early than a day late.
As the name implies, these products are meant to only be effective if the soil is treated before emergence.  Once a plant has emerged, these types of products are rendered ineffective.  If you do have some breakthrough of weeds after your pre-emergent herbicide application, look for weed control products at your local lawn and garden store that do not contain Glyphosate, or Diquat in them.  These two products will kill Bermuda that isn't dormant (brown).  Most product labels with these two chemicals will say "Weed & Grass Killer" in the product name.  Carefully read the product labels to be sure that what you apply to your lawn does not have these chemicals in the ingredients, unless you intend to kill the Bermuda as well.
As always, if you have any questions regarding pre-emergent applications, or any general lawn care advice, feel free to contact me.