1. Ron Potter Centre for Grape and Wine Research, Charles Sturt University, P.O. Box 588, Wagga Wagga 2678, Australia
2. CSIRO Division of Entomology, G.P.O. Box 1700, Canberra 2601, Australia
3. Environmental and Analytical Laboratory, Charles Sturt University, P.O. Box 588, Wagga Wagga 2678, Australia
4. Current address: Faculty of Environmental Sciences, Griffith University, Nathan Campus, Kessels Road, Brisbane 4111, Australia