Dusts are dry powders ready for use. Wettable powders, soluble powders and emulsifiable concentrates all can be mixed with water, but the percentage of the pesticide varies greatly. Aerosol sprays contain one or more pesticides in a solvent and a propellant gas. These applicators produce a fine mist or spray. The active ingredient is usually a very small percentage of the spray.
Aerosol sprays having an oil base can cause staining.
Test fabrics before overall treatment. Granules are coarse formulations of dusts made for broadcast treatments. When preparing a spray of a desired percentage of the actual material, you need to know only the formulation when using the pesticide dilution table. Outdoors, usually 5 to 15 gallons of prepared spray or 2 to 4 lbs. of dust per 1,000 square feet of lawn are adequate for area treatment. For exact formulation rates per area to be treated, follow label recommendations.