Depending on the issue, the usual practice is to use woven steel wire, sometimes known as box wire or pig netting. To prevent grazing from domestic animals (not cattle), a finer mesh may be needed. 3×3 GI Chain Link on stone or concrete posts is common practice for this issue, animals won’t be harmed when touching the fence and it is effective at keeping them away from crops. For larger animals, like cattle, a more robust option may be required, and electric or barbed wire fencing may need to be considered.