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 prevent the invasive plants from flowering? A. Girdling B. Mowing C. Digging D. Smothering

The answer is; B

This can be done when the invasive plants have fully grown and are blossoming. This ensures that they have already depleted their roots reserves and cannot regrow in the same season. At this time mowing before they can produce seeds ensures the plant's reproductive cycle does not complete. This suppresses their next growth cycle for next season because they have little to no seeds to reproduce.