Annual Meeting, Québec, Quebec, 2006, The Canadian Phytopathological Society / Réunion annuelle, Québec, Québec, 2006, La Société canadienne de phytopathologie

Abstract

Reduction in incidence and severity of clubroot caused by Plasmodiophora barssicae on bok choy and cabbage with soil apllication of AG3 phosphonate. P.A. Abbasi and G. Lazarovits. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON N5V 4T3, Canada Molecular phylogency of Synchytrium endobioticum, the causal agent of potato wart. C.L. Abbott, S.H. De Boer, C.E. Babcock, S.A. Redhead, and C.A. Lévesque. Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, K.W. Neatby Building, Central Experimental Farm, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada; and (S.H.D.B.) Centre for Animal and Plant Health, Canadian Food Inspection Agency, Charlottetown Laboratory, 93 Mount Edward Road,Charlottetown, PE C1A 5T1, Canada. A technique to screen chickpea lines for resistance to Ascochyta rabiei, using a crude extract of phytotoxins. H.U. Ahmed, K.H. Chang, S.F. Hwang, B.D. Gossen, R.J. Howard, and T.D. Warkentin. Field Crop Development centre, Alberta Agriculture, Food and Rural Development (AAFRD), 6000 C & E Trail, Lacombe AB T4L 1W1, Canada (S.F.H.) Alberta Research Council, P.O. Box 4000, Vegreville, AB T9C 1T4, Canada; (B.D.G.) Saskatoon Research Centre, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N 0X2, Canada; (R.J.H.) Crop Diversification cantre South, AAFRD, S.S. 4, Brooks, AB T1R 1E6, Canada; and (T.D.W.) Crop Development Centre, 51 Campus Drive, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada. Effect of cassava root acceptability of cassava products to the consumer. S. Aigbe, S.U. Remison, and R. Bandyopadhyay. Development of Crop Science, Ambrose Alli University, PMB 14 Ekpoma, Nigeria; and (R.B.) International Institute of Tropical Agriculture, Private Mail Bag 5320, Ibadan, Nigeria. Efficacy of phosphorous acid and metalaxyl-M Against Phytophthora erythroseptica the cause of pink rot of potato. K.I Al-Mughrabi and R.D. Peters. Potato Development Cantre, New Brunswick Development of Agriculture, Fisheries and Aquaculture, 39 Barker Lane, Wicklow, NB E7L 3S4, Canada; and (R.D.P.) Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 440 University Avenue, Charlottetown, PE C1A 4N6,Canada. Comparison of ToxB gene expression in races of Pyrenophora tritici-repentis. S. Amaike and S.E. Strelkov. Department of Agriculture, Food and Nutritional Science, 4-60 Agriculture/Forestry Centre, University of Alberta, Edmonton, AB T6G 2P5, Canada. Identification and investigation of genes involved in developement of environmentally resistant resting structures in Verticillium dahliae and Verticillium albo-atrum. S.G. Amyotte, A. Klimes, and K.F. Dobinson. Department of Biology, University of Western Ontorio, London ON N5V 4T3, Canada. Identification, by direct sequencing of rDNA, of phytoplasmas associated with diseases in Syringa and Brassica spp. T.Barasubiye, O. Chrystel, C. Wood, J. Speirs, and C.A. Lévesque. Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada (AAFC), 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada; (O.C.) Saskatoon, Research Centre, AAFC, 107 Science Place, Saskatoon, SK S7N 0X2, Canada; and (J.S.) Friends of the Central Experimental Farm, Building 72, Arboretum, Central Experimental Farm, Ottawa, ON K1A 0C6, Canada. Effects of azoxystrobin on microbial population of turkgrass phyllosphere. D. Benedetto and T. Hsiang. Department of Environment Biology, University of Guelph,Guelph ON N1G 2W1, Canada. Spatial genetic diversity in the spruce pathogens Inonotus tomentosus. M.-J. Bergeron, H. Germain, L. Bernier, G. Laflamme, and R.C. Hamelin. Laurentian Forestry Centre, Canadian Forest Service, Natural Resources Canada, P.O. Box 10380, Sainte-Foy Station, 1055 du P.E.P.S. Street, Québec, QC G1V 4C7, Canada; (H.G.) Institut de recherche en biologie végétale, Université de Montréal. 4101 East Sherbrooke Street, Montréal, QC H1X 2B2, Canada; and (L.B.) Centre de recherche en biologie forestière, Université Laval, Québec, QC G1K 7P4, Canada. Analysis of single nucleotide polymorphisms in population of Phytophthora ramorum. G.J. Biodeau, C.A. Lévesque, A.W. DeCock, C. Husson, and R.C. Hamelin. Laurentian Forestry Centre, Canadian Forest Service, Natural Resources Canada, P.O. Box 10380, Sainte-Foy Station, 1055 du P.E.P.S. Street, Québec, QC G1V 4C7, Canada; (C.A.L.) Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada; (A.W.D.C) Centraalbureau voor Schimmelcultures, P.O. Box 85167, NL-3508 AD Utrecht, Netherlands; and (C.H.) Institut national de la recherche agronomique - Nancy, Unité de recherche Pathologie forestière 54280 Champenoux, France. Effect of Fe, Cu, and Mo on Mycelial growth of Helminthosporium solani, the casual agent of potato silver scurf. S. Boivin, T.J. Avis, and R.J. Twenddell. Centre de recherche en horticulture, Université Laval Québec, QC G1K 7P4, Canada. Development of a degree-day model for predicting apple leaf emrgence during the primary scab period for timing of fungicide sprays. O. Carisse and T. Jobin. Horticultural Research and Development Centre, Agriculture and Agri-Food Canada, 430 Gouin Boulevard, Saint-Jean-sur-Richelieu, QC J3B 4E6, Canada. Development and evaluation of new, sequential sampling plan for determining the need for summer fungicide sprays against apple scab. O. Carisse, C. Meloche, G. Boivin, and T. Jobin. Horticultural Research and Development Centre, Agriculture and Agri- Food Canada, 430 Gouin Boulevard, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada. Response of fusarium root rot to seeding depth of narrow-leaved lupin under greenhouse condition, and host range of the causal pathogen. K.F. Chang, S.F. Hwang, R.T. Bowness, B.D. Gossen, D.J. Bing, R.J. Howard, and S.E. Strelkov. Field Crop Development Centre, Alberta Agriculture, Food and Rural Development (AAFRD), 6000 C & E Trail, Lacombe, Ab T4L 1W1, Canada; (S.F.H.) Alberta Research Council, P.O. Box 4000, Vegreville, AB T9C 1T4, Canada; (B.D.G.) Saskatoon Research Centre, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N 0X2, Canada; (AAFC) 107 Science Place, Saskatoon, SK S7N 0X2, Canada;(D.J.B.)Lacombe Research Centre, AAFC, 6000 C & E Trail, Lacombe, AB T4L 1W1, Canada;(R.J.H.)Crop Diversification Centre South AAFRD, S.S. 4, Brooks, AB T1R 1E6, Canada and (S.E.S.) Department of Agriculture/ Forestry Centre, University of Alberta,Edmonton, AB T6G 2P5, Canada. Effect of Pyrenophora tritici-repentis ToxA in the chlorosplast proteome. J. Ching, C. Rampitsch, G.M. Ballance, and N.V. Bykova. Cereal Research Centre, Agriculture and Agri-Food Canada, 195 Dafoe Road, Winnipeg, MB R3T 2M9, Canada; and (G.M.B.) Department of Plant Science, University of Manitoba, Fort Garry Campus,Winnipeg MB R3T 2N2, Canada. A Systematic approach to breeding for resistance to Fusarium spp. delivers rapid results. A. Comeau, F. Langevin, and G. Fedak. Soils and Crops Research and Development Centre, Agriculture and Agri-Food Canada, Québec, QC G1V2J3, Canada; and (G.F.) Eastern Cereal anf Oilseed research Centre, Agriculutre and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada. A systemic approach to breeding for resistance to biotic and biotic stresses makes more sense. A. Comeau, F. Langevin, S. Haber, V. Caetano, and M. Lévesque. Soils and Crops Research and Develpment Centre, Agriculture and Agri-Food Canada,Québec, QC G1V 2J3, Canada; (S.H.) Cereal research Centre,Agriculture and Agri-Food Canada,195 Dafoe Road, Winnipeg, Mb R3T 2M9, Canada;(V.C.) Embrapa Clima Temporado, CP 403, Pelotas, RS 96001-970, Brazil; and (M.L.) institut de recherche et de dévelopment en agroenvironment, 330 Sicotte Street, P.O. Box 480, Saint-Hyacinthe QC J2S 7B8. Canada. Factors influencing the concentration of volatile fatty acids in liquid swine mature. K.L. Conn, E. topp, and G. Lazarovits. Southern Crops Protection and Food research Centre,Agriculture and Agri-Food Canada, 1391 Sandford Street London, ON N5V 4 T3, Canada. Effect of Phlebiopsis gigantea treatment on the microbial diversity of red-pine stumps. M.T. Dumas, and G. Laflamme. Great Lakes Forestry centre, Sault Ste.Marie, ON P6A 2E5, Canada; and (G.L.) Laurentian Forestry Centre, Canadian Forest Service, Natural Resources Canada, P.O. Box 10380, Sainte-Foy Station, 1055 du P.E.P.S. Street, Québec, QC G1V 4C7, Canada. Specific variations in relative humidity make Leptosphaeria maculans PG1 isolates highly aggressive on canola cotyledons. A. El Hadrami,W.G.D. Fernando and F. Daayf. Department of Plant Science, University of Monitoba, 222 Agriculture Building, Winnipeg, MB R3T 2N2, Canada. Biological control of damping-off [Pythium aphanidermatum] of cucumber in the United Arab Emirates, using streptomycete and nonstreptomycete actinomycetes capable of producing cell-wall-degrading enzymes. K.A. El-Tarabily and F. Mckenna. Department of Biology, Faculty of Science, United Arab Emirates University, Al-ain, 17551, United Arab Emirates; and (F.M.) Natural Science Center Inc. 568 Duncan Farm Road Steele, AL 35987, USA. Postharvest control of blue mold and gray mold in ‘Empire’ apples with reduced- risk fungicide, pyrimethanil. D. Errampalli and L.I. Wainman. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, P.O. Box 6000, Vineland Station, ON L0R 2E0, Canada. Influences of oragnic mulches on populations of the root-lesion nermatode, Pratylenchus penetrans, in the root zones of apple and red rasberry. T.A. Forge, E. Hogue, D. Neilsen, G. Neilsen and C. Kempler. Pacific Agri-Food Research Centre (PAFRC), Agriculture and Agri-Food Canada (AAFC), 6947 Highway 7, Agassiz, BC V0M 1A0, Canada; and (E.H., D.N., G.N.) PAFRC,AAFC, 4200 South Highway 97, Summerland, BC V0H 1Z0, Canada. Infection of scentless chamomile, lentil, pea, and soybean by Colletotrichum truncatum from each of the hosts. L. Forseille, G. Peng, Y.D. Wei, and B.D. Gossen. Saskatoon Research Center, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N 0X2, Canada; and (Y.D.W.) Department pf Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada. Complete sequencing and phylogenetic analysis of isolates og Pepino mosaic virus from Canada. C.J. French, A. Bunckle, G. Ferguson, C. Dubeau, M. Boutthillier and M.G. Bernardy. Pacific Agri-Food Canada, 4200 South Highway 97, Summerland, BC V0H 1Z0, Canada; and (G.F.) Greenhouse Crops Research Centre, 2585 Country Road 20, Harrow, ON N0R 1G0, Canada. Compatible and incompatible interaction involving the Bt-10 gene in wheat for resistance to Tilletia tritici, the common- bunt pathogen. D.A. Gaudet, F. Leggett, Z-X. Lu, M. Frick, B. Puchalski, and A. Laroche. Lethbridge Research Centre, Agriculture and Agri- Food Canada, P.O Box 3000, 5430 South 1st Avenue,Lethbridge, AB T1J AB1, Canada. Toxicity of wheat nonspecific lipid-transfer proteins to wheat fungal pathogens and nonwheat fungal pathogens. D.A. Gaudet,J.-Y. Sun, Z. -X. Lu, M. Frick, B. Puchalski, and A. Laronche. Lethbridge Research Centre, Agriculture and Agri-Food Canada, P.O. Box 3000,5403 South 1st Avenue, Lethbridge, AB T1J 4B1, Canada. Effect of preharvest application of pyrimethanil and calcium chloride for the control of postharvest blue mold and gray mold of apples. A. Ghosh, S. Pirgozliev, D. Errampalli, L. wainman, D. Murr, J. DeEll, P. Sholberg, and S. Strokes. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada (AAFC), P.O. Box 6000, Vineland Station, ON L0R 2E0, Canada; (S.P.) Advanced Technology Centre, BASF-Canada, Edmonton, AB T6N 1G1, Canada;(D.M.) Department of Plant Agriculture, Ontario Agriculture College, University of Guelph, 50 West Stone Road, Guelph, ON N1G 2W1, Canada;(J.D.) Ontarion Ministry of Agricluture, Food and Rural Affairs, P.O. Box 587, Simcoe, ON N3Y 4N5, Canada; and (P.S., S.S.)Pacific Agri-Food Research Centre, AAFC, 4200 South Highway 97, Summerland, BC V0H 1Z0, Canada. Microarray analysis of gene expression of resistance to fusarium head blight in Triticum aestivum ‘Sumai 3’ and its susceptible near-isogenic lines. S. Golkari, J. Gilbert, T. Ban, S. Prashar, and J.D. Procunier. Department of Botany, Faculty of Graduate studies, University of Manitoba, Winnipeg, MB R3T 2M9, Canada; and (T.B.) Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), México,D.F.México Gene expression of potato tuber during infection by Streptomyces scabei. C. Goyer and J. Zeng. Potato Research Centre, Agriculture and Agri-food Canada, P.O. Box 20280, 850 Lincoln, Frederiction, NB E3B 4Z7, Canada. Prediction of deoxynivalenol in spring wheat on the basis of cropping practices and both rainfall and the number of Fusarium spores on a wheat head during the flowering stage. X.W. Guo, W.G.d. Fernando, H. Sapirstein, P. Bullock, and T. Nowicki. Department of Plant Science, University of Manitoba, 222 Agriculture Building, Winnipeg, MB R3T 2N2, Canada; and (T.N.) Grain Research Labratory, Canadian Graine Commission, 1404-303 Main Street, Winnipeg, MB R3C 3G8, Canada. Development of a quantitative PCR assay for monitoring the impact of Uncinula necator on juice and wine quality. P.D. Haag, D.T. O'Gorman, and P.L. Sholberg. Pacific Agri-Food Research Cantre, Agriculture and Agri-Food Research Centre, Agriculture and Agri-Food Canada, 4200 South Highway 97, Box 5000, Summerland, BC V0H 1Z0, Canada. Resistance to wheat streak mosaic virus in durum wheat. S. Haber, J. Gilbert, J.G. Steinberg, J. Clarke and J. Thomas Cereal Research Centre, Agriculture and Agri-Food Canada(AAFC), 195 Dafoe Road, Winnipeg, MB R3T 2M9, Canada; and (J.C.) Semi-Arid Prairie Agriculture Research Centre, AAFC, P.O. Box 1030, Swift Current, SK S9H 3X2, Canada. Genotypic diversity of two cereal-rust pathogens based on rDNA data from herbarium specimens haoused at DAOM, the National Mycological Herbarium, Ottawa, Canada. S. Hambleton, G. Robideau and R. Tropiano. Eastern Cereal and Oilseed Research centre, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada. Selection and evaluation of antagonist of Gibberella zeae from Ontario agriculture soils, using a microbiological analyzer. J.He, T. Zhou, and G.J. Boland. Department of Environmental Biology, University of Guelph,Guelph, ON N1G 2W1, Canada; and (T.Z.) Food Research Program Agriculture and Agri-Food Canada, Guelph, ON N1G 5C9, Canada. Comparison of detection of Potato leafroll virus and Potato virus Y in potato tuber samples tested by reverse transcriptase - polymerase chain reaction enzyme-linked immunosorbent assay, and field visual inspections. R. Hogue, E. Plante, and N. Daigle. Institut de recherche et de dévelopment en agroenvironment, Complexe scientifique, 2700 Eistein Street, No D.1.110, Québec, QC G1P 3W8, Canada. Sensitivity of Sclerotinia homoeocarpa,in Ontario, to demethylation-inhibiting fungicides, 10 years after the first use. T. Hsiang and A. Liao. Department of Environmental Biology, University of Guelph,ON N1G 2W1,Canada. Effects of six derivatives from coconut oils or fatty alcohols on fungal plant pathogens. T.F. Hsieh and C.H. Chen. Floriculture Research Center, Agricultural Research Institute, Council of Agriculture, Ku-keng, YunLin 646, Taiwan. Impact of plant age on mycosphaerella blight [Mycosphaerella pinodes] of field pea. S.F. Hwang, K.F. Chang, B.D. Gossen, R.L. Conner, G.D. Turnbull, and D.J. Bing. Alberta research Council, P.O. Box 4000, Vegreville, AB T9C 1T4, Canada; (KFC) Field Crop Development Centre, Alberta Agriculture, Food and Rural Development, 6000 C & E Trail, lacombe, AB T4L 1W1, Canada; (B.D.G.) Saskatoon Research Centre, Agriculture and Agri-Food Canada (AAFC), 107 Science Place, Saskatoon, SK S7N 0X2, Canada; (R.L.C.) Cereal Research Centre, AAFC Morden Research Station, Unit 100-101, Route 100, Morden, MB R6M 1Y5, Canada; and (D.J.B.) Lacombe Research Centre, AAFC, 6000 C & E Trail, Lacombe, AB T4L 1W1, Canada. Host-pathogen interactions and immunolocalization of Pathogenesis-related proteins ion Douglas-fir seedlings infected by the laminated root rot fungus (Phellinus sulphurascens). M.A. Islam, R.N. Sturrock, and A.K.M. Ekramoddoullah. Pacific Forestry Centre, Canadian Forest Service, Natural Resources Canada, 506 West Burnside Road, Victoria, BC V8Z 1M5, Canada. Unraveling the secrets of secretomics in popular leaf rusts [Melampsora spp.]. D.L. Joly, N. Feau, and R.C. Hamelin. Laurentian Forestry Centre, Canadian Forest Service, Natural Resources Canada, 1055 du P.E.P.S. Street, Québec, QC GIV 4C7, Canada. Ornamental Prunus spp. as potential hosts of Plum pox virus. A. Kalinina, M. Ravelonandro, P. Briard, and D.C.W. Brown. Department of Biology, University of Western Ontario, 1391 Sanford Street, London, ON N5V4T, Canada; (M.R., P.B.) Unité mixte de recherche Génomique, développement et pouvoir pathogéne, Institut national de la recherche agronomique – Bodeaux, villenave d’Ornon 33883, France; and (D.C.W.B.) Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sanford Street, London, ON N5V 4T3, Canada. Characterization of Phytophthora infestans isolates and resistance genes to late blight in Solanum demissum. L.M. Kawchuck, H.W. Platt, B. Bizimungu, Q. Chen, and M. Goetel. Lethbridge Research Centre, Agriculture and Agri-Food Canada (AAFC), P.O. Box 3000 Lethbridge, AB T1J 4B1, Canada; and (H.W.P.) Crops and Livestock Research Centre, AAFC, 440 University Avenue, Charlottetown, PE C1A 7M8, Canada. First record of molecular identification of aster yellows phytoplasma associated with valerian and sow-thistle in Canada. A.-H. Khadhair, C. Hiruku, and M. Deyholos. Department of Agriculture, Food and Nutritional Science, University of Alberta, 410 H Agriculture/Forestry Centre, Edmonton, AB T6G 2P5, Canada; and (M.D.) Department of Biology Sciences, CW 405, Biological Sciences Centre, University of Alberta, Edmonton, AB T6G 2E9, Canada. Heterologous expression of functional Ptr Toxb, a host-specific toxin produces by pathogenic and nonpathogenic isolates of the fungus Pyrenophora tritici-repentis. Y.M. Kim and S.E. Strelkov. Department of Agricultural, Food and Nutritional Science, University of Alberta, 410 H Agriculture/Forestry Centre, Edmonton, AB T6G 2P5, Canada. Direct real-time PCR: no RNA extraction involved, high-throughput plant diagnostic tool for detection of Plum pox virus. W.-S. Kim, L. Stobbs, D. James, D. Rochon, and A.M. Svircev. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food CAnada (AAFC), 4902 North Victoria Avenue, P.O. Box 6000, Vineland Station, ON L0R 2E0, Canada; (D.J.) Centre for Plant Health, CAnadian Food Inspection Agency, 8801 East Saanich Road, Sidney, BC V8L 1H3, Canada; and (D.R.) Pacific Agri-Food Research Centre, AAFC, 4200 South Highway 97, Summerland, BC V0H 1Z0, Canada. Screening commercial biocontrol agents for inhibitation of monilinia blight (mummy berry) on low blush blueberry. D.H. Langdon, J.A. Traquair, P.D. Hildebrand, and G.J. Boland. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada (AAFC), 1391 Sandford Street, London, ON N5V 4T3, Canada; (P.D.H.) Atlantic Food and Horticulture Research Centre, AAFC, 32 Main Street, Kentville, NS B4N 1J5, Canada; and (G.J.B.) Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Soil nutrient levels and other soil properties predictive of potato common scab [Strptomyces scabies]. G. Lazarovits, G. Petterson, J. Hill, K.L. Conn, and N. Crump. southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sanford Street, London, ON N5V 4T3, Canada; (G.P.) A & L Canada Laboratories Inc., 2136 Jetstream Road, London, ON N5V 3P5, CAnada; and (N.C.) Institute for Horticultural Development, Private Bag 15, south Eastern Mail Centre, Victoria 3176, Australia. Rhizospherer persistence of selected Phytium oligandrum strain in tomato soilness culture assessed by plate counting and two PCR-based molecular methods. G. Le Floch, J.T. Tambong, J. Vallance, Y. Tirilly, C.A. Lé, and P. Rey. Laboratoire de biodiversité et écologie microbienne, Université de Bretagne Occidentale, École supérieure de microbiologie et sécrité alimentaire de Brest, Technopôle Brest–Iroise, 29280 Plouzané, France; and (J.T.T., C.A.L.) Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, 960 CArling Avenue, Ottawa, ON K1A 0C6, Canada. Competition between Erwinia amylovora and Erwinia pyrifoliae on pear blossoms. S.M. Lehman, W.-S. Kim, and A.M. Svircev. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 4902 North Victoria Avenue, vineland Station, ON L0R 2E0, Canada. Cloning and targeted mutagenesis, via a transformation mediated by Agrobacterium tumefaciens, of a malate synthase gene from the necrotrophic fungus Sclerotinia sclerotiorum. D. Liberti and K.F. Dobinson. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, ON N5V 4T3, Canada. Is the inhibitation of Phytophthora nicotianae in tomato roots induced by arbuscular mycorrhizae fungi related to changes in root exudation? L. Lioussanne, M. Jolicoeur, and M. St-Arnaud. Institut de recherche en biologie végétale, Université de Montréal, P.O. Box 6079, Centre-Ville Station, Montréal, QC H3C 3A7, Canada. Antagonism of Glomus mosseae spore-associated bacteria on Phytophthora nicotianae, in vitro. L. Lioussanne, A. Keough, M. Jolicoeur, and M. St-Arnaud. Institut de Recherche en biologie végétale, Université de Montréal, 4101 East Sherbrook Street, Montréal, QC H1X 2B2, Canada; and (M.J.) Unité de recherche Bio-P2, Départment de génie chimique, École polytechnique de Montréal, P.O. Box 6079, Centre-Ville Station, Montréal, QC H3C 3A7, Canada. Functional mapping of candidate genes for selection of resistance to disease in western white pine, using a modified approach of amplified fragment length polymorphism. J.-J. Liu and A.K.M. Ekramoddoullah. Pacific Forestry Centre, Natural Resources Canada,506 West Burnside Road, Victoria, BC V8Z 1M5, Canada. The phylogeny of orders of Myxomycetes based on small subunit rRNA gene sequences S.Y. Liu, Y. Li, and T. Hsiang. Institute of Mycology, Department of Agronomy, Jilin Agricultural University, Changchun 130118, Jilin, China; and (T.H.) Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Take-all [Gaeumannomyces graminis var. tritici] of wheat — from epidemiology to integrated management. P. Lucas, M.H. Jeuffroy, and J.M. Meynard. Unité mixte de recherche (UMH) Biologie des organismes et des populations appliquée à la protection des plantes, Institut national de la recherche agronomique (INRA), B.P. 35327, 35653 Le Rheu, France; and (M.H.J., J.M.M.) UMR Agronomie, INRA, B.P. 01, 78850 Thiverval-Grignon, France. Base-leaf spot and a black rot of grave caused by Thielaviopsis paradoxa. J.L. Martinez-Ramirez, P. Posos-Ponce, J.A. Robles-Gómez, K.V. Beas-Ruvalcaba, and L. Fucikovsky-Zak. Departamento de Producción Agricola, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Las Agujas, Km 15.5 Carretera Guadalajara-Nogales, Zapopan, Jalisco, México, C.P. 45110, Apdo postal 129; and (L.F.Z.) Instituto de Fitosanidad, Colegio de Postgradualos, Montecillo, Estado de México, México. Evaluation of 177 Ethiopian barley accessions for reaction to covered smut, false loose smut, loose smut, and fusarium head blight. B.D. McCallum, J.G. Menzies, and A. Tekauz. Cereal Research Centre, Agriculture and Agri-Food Canada,195 Dafoe Road, Winnepeg, MB R3T 2M9, Canada. Timing and efficacy of fungicides for the management of ascochyta blight on processing peas. M.R. McDonald, B.D. Gossen, M.J. Celetti, E. Roddy, and G.J. Boland. Department of Plant Agriculture, University of Guelph, Guelph, ON N1G 2W1, Canada; (B.D.G.) Saskatoon Research Centre, Agriculture ang Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N 0X2, Canada, (M.J.C.) Ontario Ministry of Agriculture and Food (OMAFRA), University of Guelph, Guelph, ON N1G 2W1, Canada; (E.R.) OMAFRA, Ridgetown College, University of Guelph, Main Street East, Ridgetown, ON N0P 2C0, Canada; and (G.J.B.) Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Incidence and severity of cavity spot on carrots with different pigments. M.R. McDonald, K. Vander Kooi, and P.W. Simon. Department of Plant Agriculture, University of Guelph, Guelph, ON N1G 2W1, Canada; and (P.W.S.) Agricultural Research Service, US Department of Agriculture, and University of Wisconsin, Madison, WI 53706, USA. Alternaria stem spot — a new emerging fungal disease on Berberis spp. S. Mirabadi, S. Rezaee, and A.R. Golnaraghi. Member of Young Researches Club, Science and Research Campus, Islamic Azad University, P.O. Box 14515-775, Tehrān, Īrān; and (S.R., A.R.G.) Department of Plant Protection, College of Agriculture and Natural Resources, Science and Research Campus, Islamic Azad University, P.O. Box 14515-775, Tehrān, Īrān. Recovery in solanaceous plants, after Potato virus Y infection. X. Nie. Potato research Centre, Agriculture and Agri-Food Canada, P.O. Box 20280, 850 Lincoln Road, Fredericton, NB E3B 4Z7, Canada. Effect of P and K on mycelial growth of Helminthosporium solani in vitro. C. Nyiransengiyumva, T.J. Avis, and R.J. Twedell. Centre de recherche en horticulture, Université Laval, Québec, QC G1K 7P4, Canada. Sclerotinia stem rot [Sclerotinia sclerotiorum] of canola — evaluation of yield losses in Quebec. D. Pageau, J. Lajeunesse, and S. Rioux. Research Farm, Agriculture and Agri-Food Canada, 1468 St-Cyrille Street, Normandin, QC G8M 4K8, Canada, and (S.R.) centre de recherche sur les grains, 2700 Einstein Street, Québec, QC G1P 3W8, Canada. Impact of straw management and tillage system on deoxynivalenol content in cereals. D. Pageau, J. Lajeunesse, M.E. Savard, and S. Rioux. Research Farm, Agriculture and Agri-Food Canada (AAFC), 1468 St-Cyrille Street, Normandin, QC G8M 4K8, Canada; (M.E.S.) Eastern Cereal and Oilseed research centre, AAFC, 960 Carling Avenue, Ottawa ON K1A 0C6, Canada; and (S.R.) Centre de recherche sur les grains, 2700 Einstein Street, Québec, QC G1P 3W8, Canada. Pathogenicity to potato tubers of Fusarium spp. isolated from cereal and forage crops. R.D. Peters, C. MacLeod, R.A. Martin, C.R. Grau, and S. MacInnis. Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 440 University Avenue, Charlottetown, PE C1A 4N6, Canada; (C.R.G.) Department of Plant Pathology, University of Wisconsin–Madison, 1630 Linden Drive, Madison, WI 53706, USA; and (S.M.) Cavendish Agri Services, P.O. Box 247, Kentville, NS B4N 3W4, Canada. Effect of phosphonate on the occurence of disease caused by Phytophthora erythroseptica and Phytophthora infestans. R.D. Peters, H.W. (Bud) Platt, G. Lazarovitz, and I. Macdonald. Crops and Livestock Research Centre, Agriculture and Agri-Food Canada (AAFC), 440 University Avenue, Charlottetown, PE C1A 4N6, Canada; and (G.L.) Southern Crop Protection and Food Research Centre, AAFC, 1391 Sandford Street, London, ON N5V 4T3, Canada. Crop nutrition and disease suppression achieved with lobster-processing waste as a soil amendment in organic potato production. R.D. Peters, A.V. Sturz, and J.A. MacLeod. Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 440 University Avenue, Charlottetown, PE C1A 4N6, Canada; and (A.V.S.) Prince Edward Island Executive Council Office, P.O. Box 2000, Charlottetown, PE C1A 7N8, Canada. Evaluation of Alternative control strategies againts the apple replant disease. V. Philion, G. Bélair, J. Charest, S. Parent, and M. Mazzola. Institut de recherche et de développement en agroenvironment, Verger du parc national, Saint-Bruno-de-Montarville, QC J3V 4P6, Canada; (G.B.) Horticultural Research and Development Centre, Agriculture and Agri-Food Canada, 460 Gouin Boulevard, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada; (J.C.) Ministére de l’Agriculture, des Pêcheries et de l’Alimentation du Québec, 491–2 Saint-Marie Street, Marieville, QC J3M 1M4, Canada; (S.P.) Premier Tech, Riviére-du-Loup, QC G5R 6C1, Canada; and (M.M.) Tree Fruit Research Laboratory, Agricultural Research Service, US Department of Agriculture, Wenatchee, WA 98801 - 1230, USA. Movement and activity of Phoma macrostoma in soil and water, following simulated flooding — environmental fate of a biocontrol agent for dandelion. W.M. Pitt, K.L. Bailey, and J.-A. Derby. Saskatoon Research Centre, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N 0X2, Canada. Effect of single and combined inoculations of aggressive and weak pathogenic species of Verticillum on pathogen presence in plant parts. H.W. (Bud) Platt, N. Robinson, L. Hale, and V. MacLean. Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 440 University Avenue, Charlottetown, PE C1A 4N6, Canada; and (L.H.) Biology Department, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 2N1, Canada. Mango fruit rot caused by Choanephora cucurbitarum in México. P. Posos-Ponce, J.L. Martinez-Ramirez, J.A. Robles-Gómez, K.V. Beas-Ruvalcaba, and L. Fucikovsky-Zak. Departamento de Producción Agricola, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Las Agujas, Km 15.5 Carretera Guadalajara-Nogales, Zapopan, Jalisco, México, C.P. 45110, Apdo postal 129; and (L.F.-Z) Instituto de Fitosanidad, Colegio de Postgraduados, Montecillo, Estado de México, México. Validation of a procedure utilizing selective agar media to detect Fusarium graminearum in cereal seeds. S. Pouleur, L. Couture, and R.M. Clear. Soils and Crops Research and Development Centre, Agriculture and Agri-Food Canada, 2560 Hochelaga Boulevard, Québec, QC G1V 2J3, Canada; and (R.M.C.) Grain Research Laboratory, Canadian Grain Commission, 1404–303 Main Street, Winnepeg, MB R3C 3G8, Canada. Polerovirus ORF0 genes induce a host-specific response. D. Prüfer, L.M. Kawchuk, and W.Rohde. Universität zu Münster, Institut für Biochemie und Biotechnologie der Plfanzen, Hindenburglatz 55, 48149 Münster, Germany; (L.M.K.) Lethbridge Research Centre, Agriculture and Agri-Food Canada, P.O. Box 3000, Lethbridge, AB T1J 4B1, Canada; and (W.R.) Max-Planck-Institut für Züchtungsforschung, Carl-von-Linné Weg 10, D-50825 Köln, Germany. Occurence of brown root rot of alfalfa and its causal organism, Phoma sclerotiodes, in agricultural and non-agricultural sites in the Big Horn Basin ecosystem of Wyoming, United States. C.J. Reedy, F.A. Gray, R.C. Larsen, R.W. Groose, and J.R. Gill. Department of Plant Sciences, WY 82071, USA; (R.C.L.) Agricultural Research Service, US Department of Agriculture, 42106 North Bunn Road, Prosser, WA 99350, USA; and (J.R.G.) Washakie County Program Coordinator, Box 609, Worland, WY 82401, USA. Effect of harvest practices on deoxynivalenol content in barley grain. S. Rioux, S.Fortin, and M.Tremblay. Centre de recherche sur les grains, 2700 Einstein Street, Québec, QC G1P 3W8, Canada; (S.F.) 335 East Chemin des Vingtcinq, Saint-Bruno-de-Montarville, QC J3V 4P6, Canada; and (M.T.) 3300 Sicotte Street, Saint-Hyacinthe, QC J2S 7B8, Canada. Microarray analysis of differentially expressed genes of Rhizoctonia solani strain AG-3 during the pathogenic interaction with potato. D. Rivard and S. Jabaji-Hare. Department of Plant Science, McGill University, Macdonald Campus, 21 111 Lakeshore Road, Sainte-Anne-de-Bellevue,QC H9X 3V9, Canada. Control of powdery mildew on apple, cherry, and grape with commercial soap solution. P.L. Sholberg and J. Boulé. Pacific Agri-Food Research Centre, Agriculture and Agri-Food Canada, Box 5000, Summerland, BC V0H 1Z0, Canada. Symptomless expression of Citrus exocortis viroid in ornamental plant species, Impatiens and Verbena, may be a potential threat to potato and tomato crops. R.P. Singh and V.K. Barranwal. Potato Research Centre, Agriculture and Agri-Food Canada, 850 Lincoln Road, Fredericton, NB E3B 4Z7, Canada; and (V.K.B.) Plant Virology Unit, Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi 1 110012, India. Genetic analysis of resistance to necrosis-inducing Pyrenophora tritici-repentis races 3 and 5 in tetraploid wheat. P.K. Singh, J.L. Gonzales-Hernandez, M. Mergoum, S. Ali, T.B. Adhikari, S.F. Kianian, E.M. Elias, and G.R. Hughes. Department of Plant Sciences, 166 Loftsgard Hall, North Dakota State University, Fargo, ND 58105, USA; (S.A., T.B.A) Department of Plant Pathology, 306 Walster Hall, North Dakota State University, Fargo, ND 58105, USA; and (G.R.H.) Department of Plant Sciences, 51 Campus Drive, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada. Fusarium head blight of oat in Ontario. L. tamburic-Ilincic and A.W. Schaafsma. Ridgetown Campus, University of Guelph, Main Street East, Ridgetown, ON N0P 2C0, Canada. Breeding for resistance to fusarium head blight in winter wheat in Ontario, using conventional methods and biotechnology. L. Tamburic-Ilincic, D.E. Falk, and A.W. Schaafsma. Ridgetown Campus, University of Guelph, Main Street East, Ridgetown ON N0P 2C0, Canada; (D.E.F.) Department of Plant Agriculture, University of Guelph, Guelph, ON N1G 2W1, Canada. Evalutaion of Chemical treatments for the control of common scab and powdery scab of potato. J.R. Thompson, R.J. Howard, and D.R. Waterer. Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada; and (R.J.H.) Crop Diversification Centre South, Alberta Agriculture, Food and Rural Development, S.S. 4, Brooks, AB T1R 1E6, Canada. Evaluation of Chemical seed treatments to improve stand establishment in cumin in Saskatchewan. J.R. Thompson, R.W. McVicar, and D.R. Waterer. Department of Plant Sciences, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada; and (R.W.M.) Saskatchewan Agriculture and Food, 3085 Alberta Street, Regina, SK S4S 0B1 Canada. Inhibitation of growth of the fungal pathogens causing snow mold by glucosilate-containing cruciferous species. L. Tian and T. Hsiang. Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Potential of weed species as a reservoir for Xanthomonas campestris pv. vitans, the bacterial agent of leaf spot in lettuce. V. Toussaint, D.L. Benoit, M. Bélanger, M. Cadieux, and M. Ciotola. Horticultural Research and Development Centre, Agriculture and Agri-Food Canada, 430 Gouin Boulevard, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada. resistance of St. Jean – Morden and St. Jean series apple rootstocks to Erwinia amylovora. V. Toussaint, A. Levasseur, Y. Groleau, M. Cadieux, M. Ciotola, and S. Khanizadeh. Horticultural Research and Development Centre, Agriculture and Agri-Food Canada, 430 Gouin Boulevard, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada. Antagonism of Botrytis cinerea by Aureobasidium pullulans and a cellulolytic, Phoma -like fungus. J.A. Traquair, G.J. White, and B.L. Singh. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON N5V 4T3, Canada. The baseline resistance of Septoria apiicola, causal agent of septoria late blight of celery, to reduced-risk fungicides pyraclostrobin and boscalid. C.L. Trueman, M.R. McDonald, B.D. Gossen, and A.W. McKeown. Department of Plant Agriculture, University of Guelph, Guelph, ON N1G 2W1, Canada; (B.D.G.) Saskatoon Research Centre, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, Sk S7N 0X2, Canada; and (A.W.M.) Department of Plant Agriculture, University of Guelph, Simcoe, ON N3Y 4N5, Canada. Characterization of Trichoderma spp., causal agent of the green mold in British Columbia mushroom farms. N. Verma, J. Curtis, and S. Sabaratnam. BC Mushroom Industry Development Council, 356, 151-2500 South Fraser Way, Abbotsford, BC V2t 4W1, Canada; and (J.C., S.S.) Abbotsford Agriculture Centre, Ministry of Agriculture and Lands, 1767 Angus campbell Road, Abbotsford, BC V3G 2M3, Canada. Effect of hullessness, spike density, and flag-leaf characteristics on resistance to fusarium head blight and deoxynivalenol accumulation in barley. B.J. Vigier,T.M. Choo, M. Savard, Q.Q. Shen, J.M. Yang, and J.M. Wang. Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada; and (Q.Q.S., J.M.Y., J.M.W.) Zhejiang Academy of Agricultural Science, Hangzhou, Zhejiang, 310021, China. Reaction of excised pea leaves to crude extracts from Mycosphaerella pinodes, and detection of metabolites of the pathogen, using thin-layer chromatography. H.Wang, S.F. Hwang, K.F. Chang, B.D. Gossen, G.D. Turnbull, and R.J. Howard. Alberta Research Council, P.O. Box 4000, Vegreville, AB T9C 1T4, Canada; (K.F.C.) Field Crop Development Centre, Alberta Agriculture, Food and Rural Development (AAFRD), 6000 C & E Trail, Lacombe, AB T4L 1W1, Canada;(B.D.G.) Saskatoon Research Centre, Agriculture and Agri-Food Canada; and (R.J.H.) Crop Diversification Centre South, AAFRD, S.S. 4, Brooks, AB T1R 1E6, Canada. Front- and back-line defense mechanisms of two potato cultivars to US-1 and US-8 isolates of Phytophthora infestans. X. Wang, A. El Hadrami, L. Adam, and F. Daayf. Department of Plant Science, University of Minitoba, 222 Agriculture Building, Winnepeg, MB R3T 2N2, Canada. Development of simple sequence repeat markers for the genetic analysis of leaf rust [Puccinia triticina] in wheat. X. Wang., C. Leclerc, G. Bakkeren, and B.D. McCallum. Cereal Research Centre, Agriculture and Agri-Food Canada (AAFC), 195 Dafoe Road, Winnepeg, MB R3T 2M9, Canada; and (G.B.) Pacific Agri-Food Research Centre, AAFC, 4200 Highway 97, Summerland, BC V0H 1Z0, Canada. Expression of epoxide hydrolase in Nicotiana benthamiana during infection by Colletotrichum destructivum, Colletotrichum orbiculare, Pseudomonas syringae pv. tabaci. C.P. Wijekoon, P.H. Goodwin, and T. Hsiang. Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Genetic analysis of Potato virus X isolates in Prince Edward Island and their detection by reverse transcriptace (RT) –PCR. H. Xu, J. D’Aubin, and J. Nie. Canadian Food Inspection Agency, Charlottetown Laboratory, 93 Mount Edward Road, Charlottetown, PE C1A 5T1, Canada. Enhancement of synthesis of Potato virux X by Potato leafroll virus in doubly infected potato plants. H. Xu, C. MacLeod, C. Trevors, and J. Nie. Canadian Food Inspection Agency, Charlottetown, PE C1A 5T1, Canada. Different aggressiveness in isolates of fusarium graminearum and Fusarium pseudograminearum causing root rot of soybean. A.G. Xue, E. Cober, H.D. Voldeng, C. Babcock, and R.M. Clear. Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada; (R.M.C.) Grain Research Laboratory, Canadian Grain Commission, 1404–303 Main Street, Winnipeg, MB R3C 3G8, Canada. Molecular identification of Fusarium spp. causing internal rot of greenhouse sweet peppers. J. Yang, R.M. Lange, P.D. Kharbanda, W. Zhu, R.J. Howard, and M. Mirza. Alberta Research Council, P.O. Box 4000, Vegreville, AB T9C 1T4, Canada; and (R.J.H., M.M.) Crop Diversification Centre South, Alberta Agriculture, Food and Rural Development,S.S. 4, Brooks, AB T1R 1E6, Canada. Investigation of root rot complex on raspberries grown in the lower Fraser valley of British Columbia. R.You, M. Sweeney, C. Kempler, and S. Sabaratnam. Abbotsford Agriculture Centre, Ministry of Agriculture and Lands, 1767 Angus Campbell Road, Abbotsford, BC V3G 2M3, Canada; and (C.K.) Pacific Agri-Food Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1000-6947,Highway 7, Agassiz, BC V0M 1A0, Canada. Suppression of pink rot [Phytophthora erythroseptica] by metalaxyl-M in tubers showing symtoms of late blight [Phytophthora infestans]. P.D. Young, R.D. Peters, H.W. (Bud) Platt, and L.R. Hale. Department of Biology, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada; and (R.D.P., H.W.P.) Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 440 University Avenue, Charlottetown, PE C1A 4N6, Canada. Phylogeny of Antrodia and related taxa inferred from sequences of nuclear rDNA>. Z.H. Yu. S.H. Wu, and T. Hsiang. Department of Biological Science, Yangtze University, Jingzhou 434025, Hubei, China; (S.H.W.) Department of Botany, National Museum of Natural Science, Taichung 404, Taiwan; and (T.H.) Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Transfer of resistance to stem rust [Puccinia graminis Pers. f. sp. avenae] from diploid to hexaploid oat. T. Zegeye, T. Fetch, and L. Lamari. Department of Plant Science, 222 Agriculture Building, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada; and (T.F.) cereal research Centre, Agriculture and Agri-Food Canada, 195 Dafoe Road, Winnipeg, MB R3T 2M9, Canada.