However, for effective control, applications of postemergence chemicals should wait until dandelions reach the early puffball stage. These herbicides also provide good control of chickweed. It propagates from underground rootstocks and will sprout from any root pieces left after weeding. Theoretically, it can be eradicated by hand-pulling or mowing at least three times a season. But timing is everything and on a practical basis, this is difficult to accomplish.
Herbicides can save a lot of labor.
May. The clusters of delicate, cream-colored flowers are attractive. However, it pays to be able to identify this plant and avoid it. The leaves are arranged alternately on the stems. In contrast, Virginia creeper, a nonpoisonous vine often mistaken for poison ivy, has five leaflets radiating from one point of attachment. Three methods were recommended to eradicate poison ivy in ornamental beds.