Most are available in several formulations, each with its own use for control in and around houses. Those discussed here are the more common formulations. The formulation is the way in which an insecticide is packaged by the manufacturer for sale and subsequent use by the consumer.
Emulsifiable concentrates are liquids.
Apply them outdoors both to plants and around foundations. Be careful when applying to young, tender flowers and shrubs, for they may injure these plants. In concentrated form, emulsifiable concentrates are dangerous if spilled on clothing and skin. Change clothing and use masks and protective clothing while spraying, especially if applying dangerous materials over a long period of time. Launder contaminated clothing separately, then thoroughly rinse out the washing machine.