Yahya, Asha
- Department of Crop Production Ecology, Swedish University of Agricultural Sciences
Abstract
The effects of yeheb (Cordeauxia edulis Hemsl.) leaf extract on feeding and oviposition by diamondback moth (DBM) (Plutella xylostella L.) and the behavior of DBM parasitoid, Cotesia vestalis (Haliday), were studied. Volatile organic compounds (VOCs) from the headspace of intact and DBM-damaged broccoli plants sprayed with yeheb extracts (YE) were also analyzed. Larval feeding and growth, and oviposition by adult DBM were strongly inhibited by the extract. Cotesia vestalis were attracted to volatile blends from intact or DBM-damaged broccoli plants sprayed with YE over intact plants sprayed with water or methanol. Analyses of VOCs in the headspace of broccoli plants revealed that both intact and DBM-damaged plants sprayed with YE showed remarkable differences in sesquiterpene compounds compared to intact control treatments. These combined negative effects of YE on DBM fitness together with positive effects on the parasitoid show that yeheb is a potential source of compounds for use in integrated pest management to control damage caused by DBM.
Keywords
Yeheb extract; Cordeauxia edulis; Herbivorous insects; Cotesia vestalis; Plutella xylostella; Natural enemy
Published in
BioControl
2010, volume: 55, number: 5, pages: 613-624
Publisher: SPRINGER
SLU Authors
UKÄ Subject classification
Behavioral Sciences Biology
Ecology
Agricultural Science
Publication identifier
- DOI: https://doi.org/10.1007/s10526-010-9287-9
Permanent link to this page (URI)
https://res.slu.se/id/publ/47855