Influence of selected adjuvants on disease severity caused by an indigenous fungal pathogen of dandelion. S. Brebaum and GJ. Boland. Department of Environmental Biology, University ofGuelph, Guelph, Ontario, NIG 2W1. Genetic study of resistance in lentil (Lens culinaris) to Colletotrichum truncatum the cause of anthracnose. L. Buchwaldt and C. C. Bernier. Department of Plant Science, University of Manitoba, Winnipeg, Manitoba R3T2N2. A proposed North American system of nomenclature for Puccinia coronata f. sp. avenae . J. Chong, K. Leonard, and J.J. Salmeron. Cereal Research Centre, Agriculture & Agri- Food Canada, Winnipeg, Manitoba R3T 2M9; (K.L.) Cereal Rust Laboratory, United States Department of Agriculture, University of Minnesota, St. Paul 55108; and (J.J.S.) Campo; Experimental Sierra de Chihuahua, Cd. Cuauhtemoc, Mexico. Field and growth chamber evaluation of components of partial resistance to Colletotrichum truncatum in lentil. G. Chongo and C.C. Bernier. Department of Plant Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2. Influence of organic soil amendments on soilborne potato diseases at two Ontario potato farms. K.L. Conn and G. Lazarovits. Agriculture and Agri-Food Canada, Pest Management Research Centre, 1391 Sandford St., London, Ontario N5V4T3. A quantitative method for determining soil populations of Streptomyces and differentiating those that cause potato scab. K.L. Conn, E. Leci, G. Kritzman, and G. Lazarovits. Agriculture and Agri-Food Canada, Pest Management Research Centre, 1391 Sandford St., London, Ont. N5V 4T3; and (G.K.) Department Plant Pathology, ARO, The Volcani Centre Bet Dagan 50 250 Israel. Molecular characterization of coat protein genes of serologically distinct isolates of potato virus Y necrotic strain (PVYN). Arun K. Dhar and Rudra P. Singh. Agriculture and Agri-Food Canada, Potato Research Centre, P.O. Box 20280, Fredericton, New Brunswick E3B 4Z7. An approach to cloning wheat leaf rust resistance genes. Guoqiang Dong and Sylvie Cloutier. Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, Manitoba R3T2M9. Expressed sequence tags (ESTs) from the blackleg resistance response in Brassica napus. B. Fristensky, and M. Balcerzak. Department of Plant Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2. Accumulation of nonstructural carbohydrates in winter wheat cultivars (Triticum aestivum) differing in resistance to low te mperatures and snow molds. D. A. Gaudet, A. Laroche, and J. Mullin. Agriculture and Agri-Food Canada Research Centre, P.O. Box 3000, Lethbridge, Alberta T1J4BJ. Relationship between environmental variables and septoria diseases of spring wheat in the eastern Canadian prairies. J. Gilbert, S.M. Woods, and A. Tekauz. Agriculture Canada and Agri-Food Canada, Cereal Research Centre, 195 Dafoe Road, Winnipeg, Manitoba R3T 2M9. Distribution of blossom blight of alfalfa in western Canada and impact on seed yield. B.D. Gossen, J.D. Holley, L.M. Harrison, and S.R. Smith. Agriculture and Agri- Food Canada Research Centre, Saskatoon, SK S7N 0X2; (JDH) Crop Diversification Centre, Brooks, AB TOJ 0J0; (LMH) Alberta Agriculture, Fairview, AB TOH 1L0; (RSS) Department Plant Science, University of Manitoba, Winnipeg, MB R3T2N2. A robust model that predicts how barley yellow dwarf (BYD) affects yield in spring wheat. S. Haber, R.I.H. MacKenzie, and T.F. Townley-Smith. Cereal Research Centre, Agriculture & Agri-Food Canada, 195 Dafoe Rd., Winnipeg, MB R3T2M9. The development of co-dominant PCR/RFLP based markers for the flax rust resistance alleles of the L locus. G. Hausner, K.Y. Rashid, E.O. Kenaschuk, and D.J. Procunier. Agriculture and Agri-Food Canada, Morden Research Centre, Unit 100-101 Route 100, Morden Manitoba R6M 1Y5; and (D.J.P) Agriculture and Agri-Food Canada, Cereal Research Centre, 195 Dafoe Road, Winnipeg, Manitoba R3T 2M9 Role of active oxygen species in the hypersensitive response triggered in cowpea by the cowpea rust fungus. Michele C. Heath. Botany Department, University of Toronto, Toronto, Ontario M5S IAI. Some wood-inhabiting yeasts of trembling aspen and their interactions with wood-decaying members of the Basidiomycota. L.J.Hutchison and G.L.Barron. Agriculture Canada Research Station, P.O.Box 3,000, Lethbridge, Alberta T1J 4B1, and (G.L.B.) Department of Environmental Biology, University of Guelph, Guelph, Ontario NIG 2WI. Characterization of the lignification response in the wheat-tan-spot (Pyrenophora tritici-repentis) system. V. Janakiraman and G.M. Ballance. Department of Plant Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2 Identification of a dominant gene in potato conferring resistance to verticillium wilt. L.M. Kawchuk, D.R. Lynch, J. Hachey, P.S. Bains, and R.J. Howard. Agriculture and Agri- Food Canada, P. O. Box 3000, Lethbridge, Alberta TIJ 4B1; (P.S.B.) Crop Diversification Centre North, Alberta Agriculture, Food and Rural Development, RR 6, 17507 Fort Rd., Edmonton, Alberta T5B 4K3; and (R.J.H.) Crop Diversification Centre South, Alberta Agriculture, Food and Rural Development, SS4, Brooks, Alberta T1R IE6. Transgenic and somaclonal potato plants confer field resistance to the potato leafroll luteovirus. L.M. Kawchuk, D.R. Lynch, R.R. Martin, G.C. Kozub, and B. Farries. Agriculture and Agri-Food Canada, P.O. Box 3000, Lethbridge, Alberta TIJ 4B1; and (R.R.M.) United States Department of Agriculture-ARS, 3420 NW Orchard Avenue, Corvallis, Oregon, USA 97330. Genetics of resistance in Brassica napus cultivars to four pathotypes of Leptosphaeria maculans. M. Keri and S. R. Rimmer. Department of Plant Science, University of Manitoba, Winnipeg, Manitoba. R3T 2N2 Variation for pathogenicity and RAPD among isolates of Leptosphaeria maculans. M. Keri and S. R. Rimmer. Department of Plant Science. University of Manitoba. Winnipeg, Manitoba R3T 2N2. First record of aster yellows phytoplasma on parsley in Canada, based on electron microscopy and molecular identification. A.H. Khadhair. Alberta Research Council. Vegreville, Alberta T9C 1T4. Inheritance of loose smut resistance in a maize pollen derived doubled haploid population of durum wheat. R.E. Knox, J.G. Menzies, N.K. Howes, G.A. Penner, and J.M.Clarke. (R.E.K.. J.M.C) SPARC, AAFC, Box 1030, Swift Current SK S9H 3X2; (J.G.M., N.K.H., G.A.P.) CRC, AAFC. 195 Dafoe Road, Winnipeg, MB R3T2M9. Virulence and molecular polymorphism in an international collection of Puccinia recondita from common wheat. J.A. Kolmer and J.Q. Liu. Agriculture and Agri-Food Canada Cereal Research Centre, Winnipeg MB R3T 2M9 Fusarium wilt of flax, modeling genotype by location interaction. G.M.L.W. Kroes, K.Y. Rashid, and L.C.P. Keizer. Centre for Plant Breeding and Reproduction, CPRO-DLO, Wageningen, The Netherlands, and Agriculture & Agri-Food Canada, Research Centre, Morden, Manitoba R6M IY5. Targeting velvetleaf stems for spray application of a bioherbicide. H.R. Kutcher, B. Caldwell, J.L. Derby, and T.M. Wolf. Agriculture & Agri-Food Canada, Saskatoon Research Centre,Saskatoon, Saskatchewan S7N 0X2. Inheritance of leaf rust resistance in four wheat Iandraces and cultivars J.Q.Liu and J.A. Kolmer. Agriculture and Agri- Food Canada Cereal Research Centre, Winnipeg, MB, R3T2M9. Inheritance and stability of metalaxyl resistance in Albugo Candida. S. Mathur, J.Q. Liu, and S.R. Rimmer. Department of Plant Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2. Vegetative compatibility groups for Gibberella zeae (Fusarium graminearum) isolated from barley heads. B.D. McCallum and A. Tekauz. Cereal Research Centre, Agriculture and Agri-Food Canada, 795 Dafoe Rd. Winnipeg, Manitoba R3T2M9. Winter survival of sclerotia of Sclerotium cepivorum . M.R. McDonald and T. Lewis. Muck Crops Research Station, University ofGuelph, Guelph, Ontario NIG 2W1 Potential for biological control of chestnut blight with hypovirulent isolates of Cryphonectria parasitica containing CHV3-GH2-like double-stranded RNAs. M.S. Melzer and G.J. Boland. Department of Environmental Biology, University ofGuelph, Guelph, Ontario NIG 2W1 Storage of Ustilago tritici by means of infected seed. J.G. Menzies, J. Nielsen, and P.L. Thomas. Cereal Research Centre, Agriculture and Agri-Food Canada, 195 Dafoe Road, Winnipeg, Manitoba R3T'2M9. Pythium spp. isolated from healthy roots of cucumber plants growing in hydroponic culture. J.G. Menzies, D.L. Ehret, D.J.S. Barr, and C. Koch. Cereal Research Centre, Agriculture and Agri-Food Canada, 195 Dafoe Road, Winnipeg, Manitoba R3T 2M9 ; (DLE and CK) Pacific Agri-Food Research Centre, A.A.F.C., P.O. Box 1000, Agassiz, BC V0M 1A0; and (DJSB) Eastern Cereal and Oilseed Research Centre, A.A.F.C., Central Experimental Farm, Ottawa, ON K1A 0C6. Grain spawn inoculum of Gibberella zeae for fusarium head blight screening in a spring wheat nursery. J. Mitchell Fetch, M.E. Johnshoy, and R. W. Stack. Dept. of Plant Pathology, North Dakota State Univ., Fargo, ND 58105, USA. A. prescriptive approach to using hypovirulence as a biological control of chestnut blight caused by Cryphonectria parasitica . D.L. Mooij and G.J. Boland. Department of Environmental Biology, University of Guelph, Guelph, Ontario NIG 2WL Factors affecting estimates of population density of Verticillium dahliae in soil. S.I. Mpofu and R. Hall. Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G2W1. Quadris, a new broadspectrum foliar fungicide. G.W. Pastushok, B.D. Smith, and E.F. Partyka. Zeneca Agro Canada Inc., 400 Jones Road, Stoney Creek, Ontario L8G 3Z1. Genotypes of the late blight pathogen (Phytophthora infestans) in British Columbia during 1993-1996. Z.K. Punja, T. Kyung, H. Förster, P. Rusch, I. Cunningham, and M.D. Coffey. Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A IS6 and (H.F., P.R., I.C, M.D.C.) Department of Plant Pathology, University of California, Riverside CA 92521-0122. Variation in the mitochondrial DNA of .Chondrostereutn purpureum . T.D. Ramsfield, Z.K. Punja, S.F. Shamoun, and W.E. Hintz. Department of Biological Sciences, Simon Fraser University, Burnaby, BC V5A 1S6; (S.F.S.) Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Rd., Victoria, BC V8Z 1M5; and (W.E.H.) Biology Department, University of Victoria, P.O. Box 1700, Victoria. BC V8W2Y2. Control of rhizoctonia seedling blight in flax by seed treatment. K.Y. Rashid and E.O. Kenaschuk. Agriculture & Agri-Food Canada, Research Centre, Unit 100 - 101 Route 100, Morden, MB R6M 1Y5. Resistance to sclerotinia seed/seedling blight in field pea cultivars. K. Y. Rashid and T. D. Warkentin. Agriculture and Agri-Food Canada, Research Centre, Unit 100 -101 Route 100, Morden, Manitoba R6M 1Y5. Alkaloid resistance and determinants of pathogenicity of Fusarium sambucinum on potato. Heather Ray and Raymond Hammerschmidt. Department of Botany and Plant Pathology, Michigan State University, East Lansing, M148824- 1312 (Present address of H.R.. Agriculture and Agri-Food Canada, Saskatoon Research Station, 107 Science Place, Saskatoon, SK S7N 0X2). Effects of environment on development of a leaf spot of Stevia rebaudiana caused by Septoria steviae . R. Reeleder and N. Lovering. Agriculture and Agri-Food Canada and Royal Sweet International Technologies. Delhi, ON N4B 2W9. Bacterial soft rot disease of tomato fruits in Florida, USA — Identification, response of some American and Egyptian cultivars of solanaceous plants. O.I. Saleh and J.S. Huang. Plant Pathology. Department, Faculty of Agriculture, Minia University, Minia, Egypt, and (J.S.H.) Plant Pathology Department, North Carolina State University, Raleigh, USA Induction of tPAL5 in tomato during early Verticillium albo-atrum colonization. A. Saparno, R.N. Nazar, and J. Robb. Department of Molecular Biology and Genetics, University ofGuelph, Guelph, Ontario NIG2WI. Cyathus olla, a potential biological control agent for stubble-borne diseases of canola. T.C. Shinners and J.P Tewari. Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5. Specific detection of potato virus A in dormant tubers by reverse-transcription polymerase chain reaction. Rudra P. Singh and Mathuresh Singh.Agriculture and Agri- Food Canada, Potato Research Centre, P.O. Box 20280, Fredericlon, New Brunswick E3B 4Z7. Gradients of fusarium head blight in wheat along transects away from a concentrated source of Gibberella zeae ascospore inoculum. Robert W. Stack. Dept. of Plant Pathology, North Dakota State Univ. Fargo, ND, 58I05 USA. Maintaining resistance to stem rust in spring wheats bred for high levels of resistance to fusarium head blight. R.W. Stack and J.D. Miller. Department of Plant Pathology, North Dakota State University and USDA-ARS.NCSL, Fargo, ND 58105, USA Oil emulsions increase efficacy of a fungal pathogen to control dandelion but are phytotoxic. S.M. Stewart-Wade and G J. Boland. Department of Environmental Biology, University oj'Guelph, Guelph, Ontario NIG 4S7. The survival of leaf spot pathogens on crop residues of wheat and barley. K.A. Sutherland, S.L. Reed, L.J. Duczek, K.L. Bailey, and G.P. Lafond. Agriculture and Agri-Food Canada, Saskatoon Research Centre, 107 Science Place, Saskatoon, SKS7N0X2. Relationship among Fusarium species, fusarium damaged kernels and fusarium head blight in Manitoba wheat. A. Tekauz and J. Gilbert. Cereal Research Centre, Agriculture and Agri-Food Canada, 195 Dafoe Road, Winnipeg MB R3T2M9. The influence of tillage and rate of nitrogen fertilizer on common root rot of barley. T.K. Turkington and G.W. Clayton.Agriculture and Agri-Food Canada, Lacombe Research Centre, Lacombe, AB T4L 1W1 Influence of herbicides on the development of phytophthora crown and root rot of apple trees. R. S. Utkhede and E. J. Hogue. Pacific Agri-Food Research Centre, Agriculture and Agri-Food Canada, Summerland, British Columbia VOH 1Z0 Expression of native and constitutively-expressed pea defense genes in transgenic canola. Y. Wang and B. Fristensky. Department of Plant Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2. Separation of the Slovenian PVYNTN isolates from PVYN by a temperature and three primer combination system. Helena Weilguny and Rudra P. Singh. Agricultural Institute of Slovenia, Hacquetova 2, 1000, Ljubljana, Slovenia, and Agriculture and Agri-Food Canada, Potato Research Centre, Fredericton, NB, E3B 4Z7. Pathogenicity and formulation of Typhula phacorrhiza as a biocontrol agent of grey snow mould of creeping bentgrass. C. Wu, T. Hsiang, and L. Yang. Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G2WI. Efficacy of Typhula phacorrhiza as a biocontrol agent of grey snow mould of creeping bentgrass. C. Wu, T. Hsiang, and L. Yang. Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1. Screening field peas for resistance to powdery mildew for western Canada. A.G. Xue, H.J. Tuey, and T. D. Warkentin. Agriculture and Agri-Food Canada, Morden Research Centre, Morden, Manitoba R6M IY5. Components of partial resistance to black spot disease (Diplocarpon rosae) in garden roses. A.G Xue, C.G. Davidson, and H.J. Tuey. Agriculture and Agri-Food Canada, Morden Research Centre, Morden, Manitoba R6M 1Y5 Pathogenic variability in Mycosphaerella pinodes in western Canada. A.G. Xue, T.D. Warkentin, B.D. Gossen, P. A. Burnett, A. Vandenberg, and K. Y. Rashid. Agriculture and Agri-Food Canada, Morden Research Centre, Morden, Manitoba R6M 1Y5. Brassica napus pathogenesis-related protein gene PR1: cDNA cloning and expression investigation. Peijun Zhang and Brian Fristensky. Department of Plant Science, University of Manitoba, Winnipeg, Man. R3T 2N2. Analysis of as-regulatory elements in differential expression of the PR10 multigene family in peas. Y. P. Zhang and B. Fristensky. Department of Plant Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2