You can do an acre and a half with a backpack sprayer. It will take a few hours but I do more than that along my tree rows. Roundup is about as safe as you can get with chemical sprays. On the other hand plowing and disking will produce a good seed bed. The problem is that weed seeds in the soil will germinate and you'll have to cultivate several times to kill them off. In the end it is a lot cheaper to spray than cultivate when equipment and fuel costs are worked out.

Dan O.