Sally, Describe these "castings" and size of holes. Do they seem to originate above or below ground? Are there small lumpy areas in the grass now? Are there small tunnelled areas? To renew the lawn, you'd best discover the problem, or you may be wasting your effort. Some suggestions are: dew worms, shrews, June bug larvae,cinch bugs, mice, moles. These are broad suggestions, none of which perfectly match your symptoms. If you give more detail, I will try to diagnose more closely. Or get a local lawn expert to examine.
|