How can I get rid of black, disc-like lumps covering my lawn?
This is lichen, which usually indicates heavy, poorly-drained soil. Apply lawn sand and spike the lawn in spring to a depth of 4-6in (10-15cm). Then feed in spring and autumn.
Difficulty: 2 / 5
Difficulty: 2 / 5
Difficulty: 3 / 5
Difficulty: 2 / 5