Abstract: Novel pseudopeptide analogs of the insect pyrokinin neuropeptide family which possess biological activity mimicking that of the naturally occurring neuropeptides are disclosed. By addition of a hydrophobic moiety to an active portion of the pyrokinin peptides, analogs are produced which exhibit an overall amphiphilic nature and which are capable of penetrating the insect cuticle while still retaining biological activity. The analogs may be used for insect control by disrupting the reproductive, developmental, and/or digestive processes normally regulated by pryrokinins in insects.

Abstract: Novel pseudopeptide analogs of the insect kinin neuropeptide family which possess biological activity mimicking that of the naturally occurring neuropeptides are disclosed. By substituting a sterically hindered amino acid which is compatible with a turn conformation, for the Xaa.sup.2 amino acid of the insect kinin C-terminal pentapeptide (i.e. Ser, Pro, or Ala), analogs are produced which exhibit resistance to degradation by angiotensin converting enzyme (ACE) while still retaining biological activity. The analogs may be used for insect control by disrupting the diuretic and/or myotropic activity in insects.