Lewis W.J., P.E. Sonnet, and D.A. Nordlund. 1988. RESPONSES OF BRACONID PARASITOIDS Microplitis croceipes (CRESSON) AND M. demolitor WILKINSON TO STEREOISOMERS OF KAIROMONE 13 METHYLHENTRIACONTANE. J.Chem.Ecol. 14: 883-888.

ABSTRACT

The responses of Microplitis croceipes (Cresson) and Microplitis demolitor Wilkinson to the R and S stereo isomers of the kairomone 13-methylhentnacontane were evaluated. Singly and in combination at 5, 50-, and 500-ng dosage levels each were tested. There was a linear dosage response by both species to the three dosages. Furthermore, there was no difference between responses to the two stereo isomers or their combination by either species at any dosage level. The effects of the two stereo isomers were fully interchangeable and additive. This is the first report of parasitoid responses
to stereo isomers of a kairomone.