For the purpose of this chapter the following definitions shall apply unless the context clearly indicates or requires a different meaning.
FUMIGANT. Any substance which by itself or in combination with any other substance emits or liberates, or is made to emit or liberate, a gas, fume, or vapor used for the destruction or control of insects, vermin, rodents, or other pests.
FUMIGATION. The use of fumigants as defined under this section.
INSECTICIDE. Any substance, powder or liquid, not a fumigant, used for destruction, repelling, or controlling of insects, vermin, rodents, or other pests.
PEST CONTROL. Work designed to eliminate or control insects, vermin, rodents, or other pests by the use of insecticide liquid or powder, as distinguished from fumigants.
(`81 Code, § 116.01)