This is an area on our #4 green south. Over the last 3 seasons we have seen the same symptoms in the same area each year. The area gets wilted very easily and the roots are dysfunctional. We thought it was take all patch. This is on a Penn A-4 green. This spring we treated the green with 2 applications of Heritage. It is not as bad as in prior years but it was showing up again in the hot weather.
We sent a sample off and it did test back as take all patch. Recommendation from the lab was to solid tine aerify, keep the nitrogen level up and to do multiple fungicide applications in the late fall and early spring. Also to incorporate Manganese sulfate in our spray next spring. It does look better this week.