St. Gabriel Organics 80040-6 Milky Spore Grub Control Powder, 40 Oz, ConcentrateMilky Spore is a One Time application using only one teaspoonful every 4 feet in a checker board pattern on your lawn, or use the Lawn and Garden Dispenser. Kills the grub stage of the Japanese Beetle natural bacteria eats the grub from the inside. Ten year performance on the Japanese Beetle Grub (Can last up to twenty years). 40 Oz Concentrate Covers 10,000 Square Feet Apply anytime the ground is not frozen Ten year performance on the Japanese Beetle