Friday, December 31, 2010

Bentgrass Roots

All of our previous efforts to remove sodium, lower the pH, the needle tine aerification, the topdressing, and the fertilizer applications were done for the obvious reason of restoring the greens health. Further more the greens health and tolerances to sodium, disease and heat stress depends on a healthy root structure. In October the greens had a 1/2" long root structure which in turn means the grass was very vulnerable to the high sodium, disease, and heat.
 Picture taken from #18 green on Demeber 30th 2010.
Picture is of a core sample taken from # 18 green showing the root length on December 30th 2010.
There is no limit or predetermined root length that guaranties plant health during the stressful months. This is in no way a satisfactory or stopping point, we will continue aggressive cultural practices to promote root growth as temperatures allow; the post is to show the progress we have made. 2 1/2 inches in 2 1/2 months of root growth is a good start to prepare us for the stressful summer months to come.

Monday, December 27, 2010

Soil pH & TDS (Total Dissolved Solids)

One of the biggest problems the putting greens encounter is high sodium (salt) content; this is a byproduct of reclaimed water, which is the golf course's irrigation water supply. High levels of sodium prohibit the roots from properly up taking nutrients, and the grass displays characteristics of drought and nutrient deficiencies.

One thing we do to help this is apply calcium; the calcium simply binds itself to the sodium as not to interfere with plant's uptake of nutrients. When the calcium is attached it also is easier to leach out the sodium and move it down the soil profile and into the drainage system.

There are side affects to the application of calcium, the biggest being that the pH of the soil goes up, making it more alkali. The creeping bentgrass on the course prefers slightly acidic soils; from 5.0 pH – 6.5 pH. As an example, pure water has a neutral pH at 7.0. 

On December 13th, a significant rain downpour was forecasted for later in the week, and we used this as an opportunity to address the pH and sodium levels of the soil on the greens. 

Before the rain, readings were taken to record the pH and the TDS (Total Dissolved Solids) of the greens. The TDS has to do with EC (Electrical Conductivity), and it is the easiest way to judge the sodium levels in the soil.

As a bench mark the greens would be the healthiest at a pH from 5.0 to 6.5 and an EC reading of 0.75 to 1.50.

Before the rain the average reading for all the greens was 8.0pH
Before the rain the reading of the greens TDS mS/cm was .8 which = an EC of 3.0.
On Tuesday, December 14th, we applied 2,000 lbs of limestone (calcium) to the greens. This is a sound practice that many golf courses use to help leach out excess salts.
On Friday, December 17th, as it started to rain, we applied a synthetic acid to lower the pH of the greens. Both of these practices require watering, which is why the timing of the chemical applications along with the storm played a big factor in our success.
Today the reading recorded from the greens is at 6.2pH.
The post rain recording of the greens TDS mS/cm was .2 which = an EC of 1.3.
This is a substantial improvement in a very short period of time.

Course Update

We came out of the storms in pretty good condition, there are a few places in need of some cleaning and there are still plenty of leaves to keep us busy. Also there are a few ongoing projects happening on the course.

The soil is still too saturated to catch up on our rough mowing or to color the fairways. I will be closely monitoring soil moisture so we can get back on the grass as soon as possible.

The rain was much needed and had some great benefits to the soil, especially the putting greens. The rain water helped to leach out a good amount of sodium that was being held in the soil. Also we have lowered the PH from 8.0 to 6.2. I will post a report in greater detail on my blog later this week.


Regards,

Eric Wenzinger
Golf Course Superintendent

Wednesday, December 22, 2010

1980 Cattail Removal

 A couple pictures found from 1980 showing the crew removing cattails

Storm Watch 2010

Currently the course has held this week's 5.45 inches of rain fall very well. However, with the soil so saturated there are a few saftey concerns with trees falling and limited traction.

The following pictures were taken in 2004, which was a very rainy year with over 40 inches of rain fall. Long story short, the course has been closed the past few days with regards to the current safety concerns, but things could be A LOT worse.
 Number 4 Fairway, 2004
 Number 18 Stream, 2004
 Number 14 Fairway, 2004
 Number 15 Fairway, 2004
 Number 4 Culdesac, 2004
 Number 5 Green, 2004
 Number 1 Fairway, 2004
 Number 10 Fairway, 2004
 Oak Tree on Number 15, 2004
 Debris on Number 15 Fairway, 2004
 Debris on Number 15 Tee & 12 Approach, 2004
 Green Waste Bin Pushed into stream by rain. It was full of green waste and water. It took two tractor trailers to pull it out. 2004
Number 6 Fairway Drain, 2004

Tuesday, December 21, 2010

Trees

 A couple trees fell last night on hole number nine and hole number one.
 Since the soil is saturated there could be a few more fallen trees before things dry up.
 The crew clearing and cutting up the fallen trees.
We also chipped the smaller branches and hauled the logs back to the shop where they will be spit.

Monday, December 20, 2010

Weekly Update


We survived this weekend's much needed rain with minimal damage to the course. With more rain on the way, the crew will be cleaning up debris and clearing drains. Also, the mulched areas will be edged and weeded. We are somewhat limited since we have to stay on the cart paths to prevent damage. There are a few things that need to be addressed in the maintenance yard to keep us busy as well.

On another note, there is a good amount of wildlife found on the golf course, and this Whooping Crane has been an inhabitant of the course for the last 4 years. 
The Whooping Crane is an endangered crane species and is one of only two crane species found in North America. There is an estimate of only 400 left in the wild.

Wednesday, December 15, 2010

Coloring Fairways

Monday we started coloring the fairways. 
We will continue coloring fairways as weather permits.

Monday, December 13, 2010

10 Stream

Widening #10 stream to maximize the flow. This will help minimize damage and debris caused by winter storms.

Tee Aerification

 The front nine tees being aerified. The back nine has already been completed.
The tees are also being cleaned seeded and top dressed.

Needle Tine Aerification

 Hector & Shawn changing tines on aerifier.
The front nine greens are being needle tine aerified today. This is done to get some oxygen down to the roots without affecting play.

Sunday, December 12, 2010

Update

Calabasas Country Club 
Greens Department Update
December 13th

Coloring Fairways;
We will be coloring the fairways over the course of the week. The process should be completed by Friday depending on the delivery date of the coloring agent.

Aerification;
We will be aerating the front nine tees on Monday. The crew will also start to spike all roughs this week, which is a three month process to complete. Finally, we will needle tine aerify the greens on Monday as well, but this will not affect Tuesday play in any way.

Over Seeding: 
The process of over seeding and roping off high traffic and bare areas will continue throughout the Fall and Winter, depending on temperatures.

Pruning and Removal of Dead Trees:
There are several trees to be pruned to get some much needed sunlight to shady areas. If there is any time left we always have a few dead trees on the course that need to be removed as well.


Regards,

Eric Wenzinger

Thursday, December 9, 2010

Stream

 You may have noticed that we are not clearing all of the cattails out of the stream. The reason for this is our main concern is making a clear path for the water. This will minimize damage and debris during the rainy season. We will be working on this throughout the Fall and Winter. After a path is cleared for the water we will start over and remove all cattails. 
The last step in the construction of number ten stream was layering the bottom with three inches of gravel "75 tons". This gravel has made it's way down stream plugging up bridges and narrowing the stream. Over the last two years we have taken out an estimated 40 tons of gravel. The piles of gravel limits the volume of water that can flow through the stream causing the water to overflow into the fairway. The maintenance department is currently taking the appropriate measures to maximize the flow of water through the stream.

Wednesday, December 8, 2010

Calabasas Country Club has a lot of wildlife I am highlighting the water fowl that live on the course.

Mallard

From Wikipedia

The Mallard, or Wild duck (Anas platyrhynchos[1]), probably the best-known and most recognizable of all ducks, is a dabbling duck which breeds throughout the temperate and sub-tropical Americas, Europe, Asia, New Zealand (where it is currently the most common duck species), and Australia.
The male birds have a bright green head, while the female's is light brown. The mallard lives in wetlands, eats water plants, and is gregarious. It is also migratory. The mallard is the ancestor of all domestic ducks, and can interbreed with other species of genus Anas. This interbreeding is causing rarer species of ducks to become genetically diluted.


Coot

From Wikipedia

Coots are medium-sized water birds that are members of the rail family Rallidae. They constitute the genus Fulica. Coots have predominantly black plumage, and, unlike many of the rails, they are usually easy to see, often swimming in open water. They are close relatives of the moorhen.
The greatest species variety is in South America, and it is likely that the genus originated there. They are common in Europe and North America.
They have prominent frontal shields or other decoration on the forehead, and coloured bills, and many, but not all, have white on the under tail. Like other rails, they have lobed toes. The featherless shield gave rise to the expression "as bald as a coot", which the Oxford English Dictionary cites in use as early as 1430.
They tend to have short, rounded wings and are weak fliers, although northern species are nevertheless capable of covering long distances; the American Coot has reached Great Britain and Ireland on rare occasions. Those species that migrate do so at night.
Coots can walk and run vigorously on strong legs, and have long toes that are well adapted to soft, uneven surfaces.
These birds are omnivorous, taking mainly plant material, but also small animals and eggs. They are aggressively territorial during the breeding season, but are otherwise often found in sizeable flocks on the shallow vegetated lakes they prefer. A flock of coots is known in the US as a cover.


Whooping Crane

From Wikipedia

The Whooping Crane (Grus americana), the tallest North American bird, is an endangered crane species named for its whooping sound and call. Along with the Sandhill Crane, it is one of only two crane species found in North America. The whooping crane's lifespan is estimated to be 22 to 24 years in the wild. There is an estimate of only 400+ left in the wild.



Double-crested Cormorant

From Wikipedia

The Double-crested Cormorant (Phalacrocorax auritus) is a member of the cormorant family of seabirds. It occurs along inland waterways as well as in coastal areas, and is widely distributed across North America, from the Aleutian Islands in Alaska down to Florida and Mexico. Measuring 70–90 cm (28–35 in) in length, it is an all-black bird which gains a small double crest of black and white feathers in breeding season. It has a bare patch of orange-yellow facial skin. Five subspecies are recognized.
The Double-crested Cormorant is found near rivers, lakes and along the coastline. It mainly eats fish and hunts by swimming and diving. Its feathers, like those of all cormorants, are not waterproof and it must spend time drying them out after spending time in the water. Once threatened by use of DDT, the numbers of this bird have increased markedly in recent years.



Canada Goose

From Wikipedia
This species is native to North America. It breeds in Canada and the northern United States in a variety of habitats. Its nest is usually located in an elevated area near water such as streams, lakes, ponds and sometimes on a beaver lodge. Its eggs are laid in a shallow depression lined with plant material and down. The Great Lakes region maintains a very large population of Canada Geese.
By the early 20th century, over-hunting and loss of habitat in the late 19th century and early 20th century had resulted in a serious decline in the numbers of this bird in its native range. The Giant Canada Goose subspecies was believed to be extinct in the 1950s until, in 1962, a small flock was discovered wintering in Rochester, Minnesota, by Harold Hanson of the Illinois Natural History Survey. With improved game laws and habitat recreation and preservation programs, their populations have recovered in most of their range, although some local populations, especially of the subspecies occidentalis, may still be declining.
In recent years, Canada Geese populations in some areas have grown substantially, so much so that many consider them pests (for their droppings, the bacteria in their droppings, noise and confrontational behavior). This problem is partially due to the removal of natural predators and an abundance of safe, man-made bodies of water (such as on golf courses, public parks and beaches, and in planned communities).

Tuesday, December 7, 2010

Maintenance

 Fernando fixing the gate for #11 Tee
 Continuing leaf and debris pick up.
Removing cattaiils on #11.

Monday, December 6, 2010

Update

Calabasas Country Club
Course Update


This week I would like to talk about the putting greens and why some are healing slower than others and what can be done about it.


With the cooler temperatures, the greens are growing at a slower rate than in the warmer months. For instance, this week the greens will only up-take 0.08lb of Nitrogen per 1000 square feet. Nitrogen is plant energy, and the less Nitrogen the plant can take up the slower it grows. Nitrogen up-take is influenced by duration and intensity of the sun. Higher intensities(hot) combined with longer durations(long days) decreases the uptake rate, just as lower intensities(cold) combined with limited durations(short days) will also decrease uptake rates. Not only are the days shorter in the Fall and Winter months, but the last few weeks have been cooler than average temperatures, which is inhibiting growth. Moreover, the greens in shadier areas on the course are at a disadvantage from those with greater sun exposure. 


Fortunately, with the rain and the warmer temperatures expected this week, more growth is also expected. The most visible sign of this to members will be the speed of the greens. As sun intensity increases this week and promotes growth, the greens will be noticeably slower. The greens will be mowed and rolled to keep the greens speed at an acceptable level.


As far as the complete healing of the greens it is a process that is in the hands of nature. What I am doing is giving the greens as much energy that can be taken up without wasting resources on what cannot be used. Also we will be applying preventive fungicides for Snow molds, Rapid blight, and Cyanobacteria.


In conclusion, the greens are getting everything they need and will heal throughout the winter. In March we will be doing an aggressive drill and fill vertical drain application. This will protect the greens from the intense long summer days, relieve stress and compaction in the time it needs it most.



Regards,

Eric Wenzinger
Golf Course Superintendent

Friday, December 3, 2010

Break Room

Morning briefing with crew in new break room. The break room and morning meeting adds organization and structure to the assigning of daily tasks. The mural of the course was painted by my wife Breanne. 

Wednesday, December 1, 2010

Fence

Fence on 15 has been completed today.

Cattails

 Cattails being removed from stream behind 17 green.
We will be working through the winter months to remove cattails. This is done to increase flow through the stream and decrease debris and damage.

Dormant Bermuda

Bermudagrass encroachment on several greens going dormant. The bermudagrass will dye leaving bare areas this winter. Nothing can be done until the bentgrass becomes more active.
Once the bentgrass is growing faster the bermudagrass can be dug out and the greens will heal. Throughout the summer the greens will be edged and any encroaching bermudagrass will be hand pulled to prevent this issue next year.