Hello again
Whilst it's only a few weeks since the last blog, a few members questions have arrived to the inbox and so it's only right that we address these. Plus we'll add a bit of other pertinent information too
So first question: What are the rings on the greens?
The answer is Fairy Rings . These generally manifest in summer and heck, have we had a dialled up one of those Essentially, soil microbial activity is rapid in warm weather and it coincides with very dry soil conditions. The microbes consume organic matter and release Nitrogen and the green flush of growth around the externality of the ring is the outcome. It is nothing to worry about really. The dry conditions just amplify it. We've been deep watering greens with hoses, overnight irrigation and regular applications of wetting agent
Fairy rings are common on areas including Bowling Greens, Golf Fairways (above), Cricket Outfields. It's fairly common but usually fades with cooler, wetter weather. Main takeaway - it's aesthetically unattractive but not particularly detrimental. However, for further reading, here's a link for a much deeper dive:
https://turf.syngentaturflandscape.com/en-gb/turf-disease/fairy-rings
Next question: Is the irrigation system not working?
The answer is most definitely yes. I think it's important to emphasise what we mean by irrigation. It can be both the use of an automated system whereby sprinklers apply water or it can be watering via a hose. With our USGA greens, we've needed both. We've been dealing with Mediterranean temperatures for many weeks. That generally will have a downside. Safe to say that we've been running the irrigation system at night for hours and hours at a time
Let's take the 2nd and 3rd green as an example. This week, we applied a wetting agent to greens (again) and this was preceeded by an hour of overnight irrigation to these greens. Plus they were hand watered on Monday and Tuesday. Come Wednesday morning (05/08/26), even with overnight rain and irrigation, both greens are bone dry. Changing holes today was hard work
It's almost as if we couldn't apply enough water at times this summer
I think the photo below highlights the difference of of moisture content between the bentgrass (left) and poa (right), the former being a perennial grass with very established root systems and the latter being an annual grass with very shallow root systems. Just look at the colour difference between the two grasses. The bentgrass looks like it has never endured such a summer. Happy as Larry
Understand this: These soil samples were taken on the 1st green and located just inches apart. Irrigation used at night all across this green.
The difference is significant, right? The limitations of an automated irrigation system are that it isn't sentient. It cannot identify isolated dry areas and target them specifically
Hence supplemental hand watering to target drier areas to bring the moisture content to targets
This is why we overseed with bentgrass and why I discuss it so much in this blog
Main takeaway - USGA greens have many positives and they really come into their own in winter when we want them to drain excess water. In hot, dry summers though they can really demand significant inputs. Significant is doing the heavy lifting here
We must remember this; life generally provides trade offs rather than solutions and there's always a compromise attached
Final question: Will the grass recover from this summer?
Simple answer is yes. It always does. That said, no golf course can experience weather conditions like we've had and escape unaffected. So we have to be prepared for some overseeding, fertilising, verticutting and friendly weather assistance from Mother N
I think everyone's frustrated now. Golfers have had to play almost links golf for weeks and weeks. We've been pulling hoses for weeks and weeks. Let's be honest, it was fun for a while, right?
Let us be thankful that we're not at a golf club based in the South East. That would not be very problematic
Q&A over, now onto more disease....
As we approach mid-August, Anthracnose is starting to reveal itself on a few greens
Mainly detrimental to poa grass, it's caused by stress from:
- Low mowing
- Heat/Wind
- Compaction
- Occasionally low Nitrogen soils
As an annual, poa establishes in Winter, produces seeds in Spring, sets seed in Summer and dies in Autumn. Repeat ad infinitum
Annuals do not last more than 1 year. If you have bedding plants in pots or hanging baskets, you'll be familiar with this process. Pansies, Petunias, Pelargoniums - Poa grasses too
It's a yellowing of the leaf. The poa is checking out and declaring 'No Mas'. We may start to see some thinning out of turf in the odd areas. But within a few weeks, greens renovations start and with it, more overseeding
Next up, tree roots...
Poplar tree roots... in search of WATER on the 4th carry
In fact, as far as the yellow tee on the 4th hole
- Greens renovation week (first week of September)
- Fairways renovation week (second week of September)
- Contractor in to remodel the 6th/15th tees (all of September)





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