| Affiliation: | (1) Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford St., N5V 4T3 London, Ontario, Canada;(2) Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, K1A 0C6 Ottawa, Ontario, Canada;(3) Canadian Forest Service, Laurentian Forest Centre, 1055 du P.E.P.S., P. O. Box 3800, G1V 4C7 Ste-Foy, Quebec, Canada;(4) Present address: Department of Biology, West Virginia University, 26506-6057 Morgantown, WV |
