This preventative spray is applied from the roof line of your home down to the ground. It includes, but is not limited to; the home, garage, shed, decking (including rails), playscapes, patio furniture and adjacent landscape. Target pests include spiders, wasps, box elder bugs and 32 common insects indigenous to Michigan.The duration of this chemical can be up to 12 weeks and guaranteed for the first eight. Spring and fall treatments are recommended for maximum protection all summer long!