Can imitation companion planting interfere with host selection by Brassica pest insects?
Article first published online: 29 OCT 2012
© 2012 The Royal Entomological Society
Agricultural and Forest Entomology
Volume 15, Issue 1, pages 106–109, February 2013
How to Cite
George, D. R., Collier, R. H. and Whitehouse, D. M. (2013), Can imitation companion planting interfere with host selection by Brassica pest insects?. Agricultural and Forest Entomology, 15: 106–109. doi: 10.1111/j.1461-9563.2012.00598.x
- Issue published online: 22 JAN 2013
- Article first published online: 29 OCT 2012
- Accepted 28 August 2012
- Companion planting;
- pest control;
- 1Companion planting with nonhosts may offer a non-insecticidal means of controlling pests, although the results of studies can be variable and species-dependent.
- 2The effect of companion planting on two pests of Brassica crops, Plutella xylostella (L.) and Brevicoryne brassicae (L.), was examined using Brussels sprout as the host plant and imitation cereal plants made from green plastic as the nonhost. For P. xylostella, the effect of nonhost density was also investigated.
- 3Oviposition (P. xylostella) and abundance (B. brassicae) were lower on Brussels sprout plants presented on a background of high-density imitation cereal plants (reductions of 59% and 85%, respectively).
- 4The results are discussed in the context of host location by pest insects and the selection of nonhost companion plants for pest management.
- 5It is concluded that nonhost plants interfere with pest host selection through disruption to visual host location processes.