1. All persons providing commercial lawn application shall affix markers to be placed within or along the perimeter of the area where pesticides will be applied. Markers are to be placed so as to be clearly visible to persons immediately outside the perimeter of such property. Such markers shall be posted at least twelve inches above the ground and shall be at least four inches by five inches in size.

2. The markers required pursuant to this section shall be in place on the day during which the pesticide is being applied and shall instruct persons not to enter the property and not to remove the signs for a period of at least twenty-four hours. Such instruction shall be printed boldly in letters at least three-eighths of an inch in height.