Hi. My husband noticed yellowing of our 3 week old Bermuda sod lawn in spots. At first we thought that it was just due to mowing for the first time since the sod was installed. Today I saw worms all over the place. Took a photo of one. What to do now? Can I treat lawn that was installed just 3 weeks ago? We are in Atlanta and had a very rainy couple of days. Any help appreciated.