About Authors

Brian. S. Dear (Principal author) and  G. A. Sandral are based at NSW Agriculture, Agricultural Institute, Wagga Wagga, NSW 2650, Australia, while A. D. Craig is of the South Australian Research and Development Institute, Struan Research Centre, Naracoorte, SA 5271, Australia and Mr Brad Nutt and Dr Mike Ewing are of Western Australian Department of Agriculture, South Perth, Western Australia, Australia