The invention relates to an insecticide, in particular to a space spraying insecticidal composition (containing 4-
trifluoromethyl nicotinamide) and application thereof. The composition comprises an
active component A and an
active component B, wherein the weight ratio of the
active component A to the active component B is (20: 1)-(5: 1); the
active ingredient A is 4-(
trifluoromethyl)
nicotinamide; and the
active ingredient B is tetramefluthrin, dimefluthrin, (+)-trans-
propargyl chloride, (+)-phenothrin, (+)-mefluthrin, (+)-mefluthrin, (+)-mefluthrin, (+)-mefluthrin, (+)-mefluthrin, (+)-mefluthrin, (+)-mefluthrin, (+)-mefluthrin, (+)-mefluthrin, (+)-mefluthrin or (+)-(+)-mefluthrin. The composition and the corresponding preparation provided by the invention have the characteristics of high efficiency,
low toxicity and the like, can be used as a space spraying agent, and have the advantages of quick effect and thorough killing, the application amount is reduced, and the application
irritation is reduced. The 1, 2, 4-
trifluoromethyl nicotinamide serving as a lethal agent has no
cross resistance with
pyrethroid, has a good lethal effect, is widely applied to hotels, schools, factories, families and public places, and has a special effect on prevention and treatment of sanitary pests.