Horrendous Backyard Weed Attack

Hi there, My husband destroyed our yard.. he laid dirt over our grass from a walkway he had dug up to lay interlock. He thought it would act as “topsoil” and he could add seed and make it thicker. Well,…

Herbicides *

If I applied a granular herbicide containing 2-4D, mecoprop and dicamba to a lawn this fall, would it be safe to turn over part of it in the spring and use as a flower garden?…