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Responses of carrot fly larvae, Psila rosae , to the odorous and contact‐chemostimulatory metabolites of host and non‐host plants
Author(s) -
JONES O. T.,
COAKER T. H.
Publication year - 1979
Publication title -
physiological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 57
eISSN - 1365-3032
pISSN - 0307-6962
DOI - 10.1111/j.1365-3032.1979.tb00627.x
Subject(s) - olfactometer , biology , host (biology) , methyl eugenol , larva , botany , instar , secondary metabolite , eugenol , kairomone , tephritidae , horticulture , pest analysis , ecology , biochemistry , gene , chemistry , organic chemistry
. The responses of third instar carrot fly larvae, Psila rosae , to plant metabolites were studied in a moving air olfactometer. Directed responses over distances greater than 7.5 cm were obtained to both host and non‐host plant odours, to CO 2 and methyl eugenol, a volatile secondary metabolite of carrot roots. Larvae also oriented to gradients of contact‐chemostimuli. The role of both olfactory and contact‐chemostimuli in the host plant finding behaviour of P. rosae larvae is discussed, and observational evidence for the behavioural mechanisms involved presented.