Posted: 18/03/2012 at 20:43
There can be if you want to aim for the "perfect" lawn. These products can reduce your moss and weed problem leaving you with the stronger growing grass although you are likely to have to re-seed some areas if bald patches appear.
You can try to reduce the moss problem by scarifying the area then airating and sifting in sharp sand. This will help reduce the thatch and better aid drainage. You can also take out large lawn weeds with a trowel ie dandelion & plantain. Both of these again may mean that you have to re-seed some areas where bare patches are left.