This picture came from 1 mountain fairway and is in a thin dry area surrounded by green grass. The salts haven't been flushed from winter rains and because the salt concentration in our irrigation water is higher this year due to low reservoirs, the accumalation is very dramatic.
We have just applied calcium in the form of lime and next week we will be spraying a product in combination with wetting agent that should help break down both the salt and high bicarbonates.
The winter rains can't come soon enough.