To keep the lawn well maintained, you might need to keep a few things in mind:

 

* if you see fungi on the law in a line, they are probably from a tree underneath the grass. So you might remove the tree root.

 

* Try to avoid walking on the lawn when it is covered by snow or wet. Such caution will kep the lawn more vigorous and not very easily damaged by the fungal infection.

 

* If birds or small animals show up on your lawn and dig up your lawn, they are probably looking for grubs. The solution is to use biological nematode control drenches.

 

Some quality pest and weed control are for sale on eBay.