what to do w/ runners

Q--
My June-bearing strawberries have runners with daughter plants growing all over the place. Most of the runners are about 6-8 inches long with with fairly well formed daughters and some have started to root themselves in the ground. Some of the daughters now have runners with daughters starting to grow.

Do I need to start to lightly press the plantlets on the runners into the ground and tamp the soil down around the plantlet as stated in the planting guide? Or do I need to wait till around mid to late July? At what point do I need to start cutting off any additional runners that form?

A--
Start setting runners as soon as they form. Place 3-5 inches apart until bed is full. You can only get so many berries per sq/ft of row, so the thicker the planting the smaller the berries. For larger berries set runners 5-8 inches apart.