Milky Spore Powder in cans is a one time application put down in spots in measuring teaspoon amounts every four feet apart creating a checkerboard pattern of spots throughout your yard. Each spot contains 100 million spores.
Milky Spore Spreader Mix in bags is applied with a drop spreader over every square foot of grass and requires applications in spring, summer and fall for two years to build the number of spores in any one area to millions of spore