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Host location and parasitism of Brevicoryne brassicae in diversified broccoli cropping systems
Citation
Broad, S and Schelhorn, NA and Lisson, SN and Mendham, NJ and Corkrey, R, Host location and parasitism of Brevicoryne brassicae in diversified broccoli cropping systems, Entomologia Experimentalis et Applicata, 129, (2) pp. 166-171. ISSN 0013-8703 (2008) [Refereed Article]
DOI: doi:10.1111/j.1570-7458.2008.00762.x
Abstract
Host location is a crucial step in the life cycle of the cabbage aphid, Brevicoryne brassicae (L.) (Homoptera: Aphididae). Diversified cropping systems have the potential to inhibit or interfere with host location processes to reduce the severity of aphid outbreaks. We altered the vegetation mix of a broccoli [Brassica oleracea var. italica (Plenck) (Brassicaceae)] cropping system by substituting broccoli with strips of potatoes [Solanum tuberosum (L.) (Solanaceae)], planting broccoli into a cereal rye [Secale cereale (L.) (Poaceae)] cover crop, or both. The probability of aphid infestation was significantly reduced by the presence of the cover crop, whereas strips of potatoes slightly increased initial numbers. The effectiveness of the cover crop treatments was primarily due to fewer alate aphids initially colonizing broccoli plants. Aphid parasitism by Diaeretiella rapae (McIntosh) (Hymenoptera: Braconidae) did not explain the observed differences in the number of aphid colonies present in each treatment.
Item Details
Item Type: | Refereed Article |
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Keywords: | cover crop, Aphididae, Diaeretiella rapae, Hymenoptera, strip crop, plant diversity, Brassica oleracea var. italica, Secale cereale, Solanum tuberosum, Braconidae, intercropping |
Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Horticultural production |
Research Field: | Horticultural crop protection (incl. pests, diseases and weeds) |
Objective Division: | Plant Production and Plant Primary Products |
Objective Group: | Environmentally sustainable plant production |
Objective Field: | Environmentally sustainable plant production not elsewhere classified |
UTAS Author: | Broad, S (Dr Shane Broad) |
UTAS Author: | Lisson, SN (Dr Shaun Lisson) |
UTAS Author: | Mendham, NJ (Dr Neville Mendham) |
UTAS Author: | Corkrey, R (Dr Ross Corkrey) |
ID Code: | 51705 |
Year Published: | 2008 |
Web of Science® Times Cited: | 13 |
Deposited By: | Agricultural Science |
Deposited On: | 2008-08-01 |
Last Modified: | 2015-03-02 |
Downloads: | 0 |
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