Hey everybody, I need some wisdom. Here is the deal.. My yard, which is ST Augustine, has strange areas that are lifting up from the soil, yet still growing. If you walk on them, the area presses down, then springs back up. I have a sprinkler system connected to the sewer. However, the problem is not around all the heads, just one. The ground under the patch is loose, and I did not see any bugs in it. Another strange thing: all over the yard single stolons are coming up, growing over a few inches of the other grass, then reattaching themselves. I think in general the front yard is weird!! I do not see any of this in the back. Hopefully the pictures will help. I live south of Houston with the famous gumbo soil. Thanks for any advice. First picture is of the stolons.