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Genetic shifts in Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) over a year in the Dawson/Callide Valleys

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Scott, K.D., Wilkinson, K.S., Merritt, M.A., Scott, L.J., Lange, C.L., Schutze, M.K., Kent, J.K., Merritt, D.J., Grundy, P.R. and Graham, G.C. (2003) Genetic shifts in Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) over a year in the Dawson/Callide Valleys. Australian Journal of Agricultural Research, 54 (8). pp. 739-744. ISSN 1836-0947

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Article Link: https://doi.org/10.1071/AR02164

Abstract

Microsatellites were used to analyse 68 collections of Helicoverpa armigera in the Dawson/Callide Valleys in central Queensland. The study aimed to evaluate the genetic structure in this region over a 12-month period (September 2000–August 2001). The results detected genetic shifts in H. armigera collections, with genetic changes occurring month by month. Collections in any month were genetically distant from the preceding month's collections. There was no observed difference between collections of H. armigera from the Biloela region and those found in the Theodore region of central Queensland. The data support the current area-wide management strategies for H. armigera by reinforcing the importance and contribution of local management practices. The study also indicates a need for the continuation of regional or Australia-wide approaches to management of the low levels of immigration that are occurring, and for future high pest pressure years.

Item Type:Article
Subjects:Plant pests and diseases > Economic entomology
Plant pests and diseases > Pest control and treatment of diseases. Plant protection
Live Archive:29 Jan 2024 01:10
Last Modified:29 Jan 2024 01:10

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