Millar, J.G., & Hare, J.D. 1993 Identification and synthesis of a kairomone inducing oviposition by the parasitoid Aphytis melinus from California red scale covers.. Journal of Chemical Ecology 19(8): 1721-1736.

Notes: Abstract: The parasitoid wasp Aphytis melinus uses a kairomone from the cover of its scale host, Aonidiella aurantii, as an oviposition stimulant; the kairomone was isolated from extracts of scale covers and identified as O-caffeoyltyrosine by a combination of spectroscopic methods; the kairomone was synthesized, and the synthetic compound was determined to be as active as the chemical isolated from scale covers.