Use it on broadleaf weeds — weeds characterized by veiny leaves and nodes bearing one ... having to reapply the herbicide. If ...

Use it on isolated weeds, like in between pavers ... Wet the foliage first so that the baking soda sticks to the leaves. Alternatively (and better), prepare a solution of baking soda and water ...

the weed will grow back. This is also the time of the season to apply a systemic insecticide to boxwoods to protect them from certain damaging insects. These would be leaf miners and psyllids.