Behavioral and biological responses of Cotesia marginiventris to kairomones of the fall armyworm, Spodoptera frugiperda

Potential kairomone sources of the fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), were bioassayed with females of Cotesia marginiventris (Cresson) in Petri dishes (10 cm diam). Mated C. marginiventris females, ranging in age from 1 to 3 days exhibited the most intense bioassay responses to...

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Bibliographic Details
Published in:Journal of chemical ecology 1984-01, Vol.10 (3), p.521-529
Main Authors: Loke, W H, Ashley, T R
Format: Article
Language:English
Subjects:
Braconidae
Cotesia marginiventris
Noctuidae
Spodoptera frugiperda
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Summary:Potential kairomone sources of the fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), were bioassayed with females of Cotesia marginiventris (Cresson) in Petri dishes (10 cm diam). Mated C. marginiventris females, ranging in age from 1 to 3 days exhibited the most intense bioassay responses to potential sources of kairomone. Contacting a FAW-damaged corn leaf modified the pattern of movement in C. marginiventris from random to one exhibiting a significant increase in klinokinesis. Removal of one, both, or the first eight antennal segments reduced or eliminated the response of the parasitoid to kairomones. Female parasitoids did not exhibit a preference for corn leaves damaged by a particular fall armyworm instar and parasitization rates were highest in larvae 48 hr old.
ISSN:0098-0331
1573-1561
DOI:10.1007/BF00988097