Clearing out a big area of weeds.
There is a pretty big area of weeds in my backyard. I want to clear the area of the weeds as easily as possible. It's isolated from the rest of the lawn by a border. It's basically an uncared garden that has been invaded by weeds. It has little trees and shrubs scattered all over the place. The garden is almost like a little field.
What would be the best way to remove all these weeds. Pesticides or manually removing them? There is nothing in the field I would like to spare.