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Experience-induced preference for oviposition repellents derived from a non-host plant by a specialist herbivore.
- Source :
-
Ecology Letters . Jul2005, Vol. 8 Issue 7, p722-729. 8p. 2 Charts, 1 Graph. - Publication Year :
- 2005
-
Abstract
- Foraging adults of phytophagous insects are attracted by host-plant volatiles and supposedly repelled by volatiles from non-host plants. In behavioural control of pest insects, chemicals derived from non-host plants applied to crops are expected to repel searching adults and thereby reduce egg laying. How experience by searching adults of non-host volatiles affects their subsequent searching and oviposition behaviour has been rarely tested. In laboratory experiments, we examined the effect of experience of a non-host-plant extract on the oviposition behaviour of the diamondback moth (DBM),Plutella xylostella, a specialist herbivore of cruciferous plants. Naive ovipositing DBM females were repelled by an extract of dried leaves ofChrysanthemum morifolium, a non-host plant of DBM, but experienced females were not repelled. Instead they were attracted by host plants treated with the non-host-plant extract and laid a higher proportion of eggs on treated than on untreated host plants. Such behavioural changes induced by experience could lead to host-plant range expansion in phytophagous insects and play an important role in determining outcome for pest management of some behavioural manipulation methods. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHYTOPHAGOUS insects
*PLANTS
*PLANT parasites
*PLUTELLA
*HERBIVORES
Subjects
Details
- Language :
- English
- ISSN :
- 1461023X
- Volume :
- 8
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Ecology Letters
- Publication Type :
- Academic Journal
- Accession number :
- 17204808
- Full Text :
- https://doi.org/10.1111/j.1461-0248.2005.00776.x