Abstract
Several aliphatic amines (alkyl amines) were evaluated against larvae and pupae of laboratory-reared southern house mosquitoes, Culex pipiens quinquefasciatus Say; Anopheles albimanus Wieclemann; and the yellow-fever mosquito, Aedes aegypti (L.). Several of these amines were also evaluated against larvae and pupae of the pasture mosquito, Aedes nigromaclis Ludlow. Larvae and pu pac of this species were collected in the field and brought to the laboratory for testing. In the larval stage the level of susceptibility of the various species was: A. aibimanus > C. p. quinquefasciaus > A. aegypti < A. ingromaculis. In the pupal stage the susceptibility levels ranked: A. albimanus > C. p. quinquefasciatus > A. aegypti > A. nigromaculis. There was no cross tolerance to the aliphatic amines in ethyl parathion resistant A. nigromaculis. Resistant as well as susceptible populations of this pasture mosquito showed similar level of susceptibility to most of the aliphatic amines evaluated.
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