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


Autoria(s): 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.; Graham, G. C.
Data(s)

01/01/2003

Resumo

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.

Identificador

http://espace.library.uq.edu.au/view/UQ:64361

Idioma(s)

eng

Publicador

CSIRO Publishing

Palavras-Chave #Agriculture, Multidisciplinary #Molecular Markers #Migration #Molecular Biology #Resistance Management #Punctigera Wallengren Lepidoptera #Population-structure #Host-plants #Flow #Heliothis #Australia #Distances #Allozyme #Alleles #Cotton #C1 #300204 Plant Protection (Pests, Diseases and Weeds) #620100 Field Crops
Tipo

Journal Article