When it comes to deciding when to aerate a lawn, it's true to say that timing is everything if you want to get the best results. As we'll go on to explain in more detail, early autumn is a prime time to complete this task for a number of reasons. Doing it at this time of year will give your lawn a real boost by letting in more air for healthier roots, improving drainage to avoid waterlogging issues, and resulting in faster uptake of nutrients.
While it is possible to lay turf on existing grass it's not recommended. The new turf will have a harder time rooting and becoming established.
The most effective way to remove mushrooms from your lawn is by manual removal using tools like a stiff brush or by hand with gloves.