Milky Spore Powder 10 oz. will treat 2,500 sq. ft. An All-Natural, Japanese Beetle Grub Control. Once applied, Milky Spore Can Last Up To 20 Years. Targets and discriminately works to attack the white grubs Of Japanese Beetles. Does not harm beneficial insects, man or animals and safe to use around water ways. Approved for use around schools, playgrounds, soccer fields and parks. One time application using only one teaspoonful every 4 feet in a checker board pattern on your lawn. Apply anytime the ground is not frozen. NOT FOR SALE IN: FL, HI, LA, MT, ND, NM, SD, UT, WA, WY