Lawn care is a science and like all sciences there is a requirement to follow a sequence like a flow chart and also to keep everything in balance too.
Tip the scales or be too reactive and your lawn will suffer, get diseased, go thin and less dense and sometimes die.
In no particular order, here are some of the errors we see when out and about visiting lawns:
1. Mowing too low and infrequently and always in the same direction