Petra is facing the problem of invasive plants on her farm. She realizes that if she can prevent the invasive plants from flowering, then they will not harm her farm. What method can she use to preven


Petra is oppositeness the collection of invasive plants on her farm. She realizes that if she can forefend the invasive plants from fair, then they get not damage her farm. What system can she use to forefend the invasive plants from fair? girdling mowing digging smothering