QUESTION

I CANNOT seem to rid my gravel drive of perenniall weeds: dandelions, grass and d plantains. What can I do?

Mrs H. Morgan, Essex. . ROOT fragments are easily left behind in gravel and may sprout again. So, you have two choices. The first is to keep weeding by hand. The second is to use glyphosate herbicide to destroy annual and perennial weeds down to the roots.