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Evaluating legume species as alternative trap crops to chickpea for management of Helicoverpa spp. (Lepidoptera: Noctuidae) in central Queensland cotton cropping systems

Published online by Cambridge University Press:  09 March 2007

P.R. Grundy*
Affiliation:
Plant Science, Department of Primary Industries and Fisheries, LMB 1, Biloela, Queensland, 4715, Australia
R.V. Sequeira
Affiliation:
Plant Science, Department of Primary Industries and Fisheries, LMB 6, Emerald, Queensland, 4720, Australia
K.S. Short
Affiliation:
Plant Science, Department of Primary Industries and Fisheries, LMB 1, Biloela, Queensland, 4715, Australia
*
*Fax: 07 4992 3468 E-mail: Paul.Grundy@dpi.qld.gov.au

Abstract

Mounting levels of insecticide resistance within Australian Helicoverpa spp. populations have resulted in the adoption of non-chemical IPM control practices such as trap cropping with chickpea, Cicer arietinum (L.). However, a new leaf blight disease affecting chickpea in Australia has the potential to limit its use as a trap crop. Therefore this paper evaluates the potential of a variety of winter-active legume crops for use as an alternative spring trap crop to chickpea as part of an effort to improve the area-wide management strategy for Helicoverpa spp. in central Queensland's cotton production region. The densities of Helicoverpa eggs and larvae were compared over three seasons on replicated plantings of chickpea, Cicer arietinum (L.), field pea Pisum sativum (L), vetch, Vicia sativa (L.) and faba bean, Vicia faba from the plants after oviposition. Plantings of field pea as a replacement trap crop for chickpea under commercial conditions confirmed the high level of attractiveness of this crop to ovipositing moths. The use of field pea as a trap crop as part of an area-wide management programme for Helicoverpa spp. is discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2004

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