title: Intensification and prolongation of host searching inLeptopilina heterotoma (Thomson) (Hymenoptera: Eucoilidae) through a kairomone produced byDrosophila melanogaster.
abstract: A chemical cue (kairomone) of the host, larvae ofDrosophila, was found to influence patch-time allocation of the parasiteLeptopilina heterotoma. This kairomone is soluble in water and chloroform. The kairomone was purified using thin-layer chromatography. The concentration of the kairomone increases with an increasing number of hosts. The parasites may use presence and concentration of the kairomone as cues to determine patch-time allocation.
authors: Department of Ecology, University of Leiden, Leiden, The Netherlands.
authors: M
authors: M
authors: Dicke
authors: J C
authors: JC
authors: van Lenteren
authors: G J
authors: GJ
authors: Boskamp
authors: R
authors: R
authors: van Voorst