Stack Exchange network consists of 177 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Gardening & Landscaping Stack Exchange is a question and answer site for gardeners and landscapers. It only takes a minute to sign up.
How do I control sprouting throughout the lawn about four feet all around?
Assuming you are mowing regularly you could just cut them with your lawn mower. Otherwise you could manage them with an herbicide / pesticide that would not damage the grass but would kill the unwanted oak trees.
Required, but never shown