Lessons in Developing Successful Invasive Weed Control Programs

Événement(s) lié(s) : - Réunion annuelle de la Société canadienne de phytopathologie; Québec (FRA) - (2006)

Leafy Spurge Control with Angora Goats and Herbicides

Experiments were conducted to determine the efficacy of imidazolinone and sulfonylurea herbicides applied alone or in combination to control leafy spurge. Imazapyr (840 g ai/ha), imazethapyr (140 g/ha), sulfometuron (100 g/ha), and chlorsulfuron (20 g/ha) were applied in the fall on rangeland sites near Ainsworth and Columbus, NE. Imidazolinone and sulfonylurea herbicide combinations did not improve leafy spurge control nor affect forage grass yields when compared with herbicides applied alone. Imazapyr and sulfometuron were the most efficacious, providing greater than 80% leafy spurge control 9 mo after treatment (MAT). Imazethapyr provided 80% control of leafy spurge 9 MAT when applied to a coarse textured, low organic matter soil. In contrast, leafy spurge control was only 15% when imazethapyr was applied to a fine textured soil. Chlorsulfuron did not control leafy spurge, regardless of site characteristics. Imazapyr reduced perennial grass yields by more than 60%.

Biological control of seedling damping-off with fish emulsion derived from menhaden fish. P.A. Abbasi, K.L. Conn, R. Earl, and G. Lazarovits. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON N5V 4T3, Canada. Fungitoxicity of smoke from some Ghanaian medicinal plants. R. Addai. Department of Crop Science, Faculty of Agriculture, Kwame Nkrumah University of Science and Technology, P.O. Box KS 13128, Adum, Kumasi, Ghana. Efficacy of OxiDateTM for control of potato storage pathogens. K.I. Al-Mughrabi. Potato Development Centre, New Brunswick Department of Agriculture, Fisheries and Aquaculture, 39 Barker Lane, Wicklow, NB E7L 3S4, Canada. Biological control of Carthamus lanatus in Australia. G.J. Ash, N.S. Crump, A. Breen, E. Anschaw, R.O. Kennedy, J.D.I. Harper, A. Nikandrow, and D. Hailstones. Farrer Centre, Charles Sturt University, Wagga Wagga, NSW 2678, Australia; (A.N.) Orange Agricultural Institute, New South Wales (NSW) Agriculture, Forest Road, Orange, NSW 2800, Australia; and (D.H.) Elizabeth Macarthur Agricultural Institute, NSW Agriculture, Woodbridge Road, Menangle, NSW 2568, Australia. Assessment of resistance to late blight within primitive cultivated Andigena potato lines. P. Audy, T. Somerville, and T. Mossman. Potato Research Centre, Agriculture and Agri-Food Canada, 850 Lincoln Road, P.O. Box 20280, Fredericton, NB E3B 4Z7, Canada. Validation of impaction-type spore sampler as a tool to estimate inoculum of Uncinula necator. R. Bacon, B. Talbot, and O. Carisse. (R.B., O.C.) Horticultural Research and Development Centre, Agriculture and Agri-Food Canada, 430 Gouin Boulevard, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada; and (R.B., B.T.) Département de biologie, Université de Sherbrooke, 2500 Université Street, Sherbrooke, QC J1K 2R1, Canada. Identification and detection of fungi associated with root rot of soybean seedling in Eastern Canada. T. Barasubiye, C.A. Lévesque, A. Tenuta, S. Rioux, K. Seifert, T.R. Anderson, and E. Cober. Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada; (A.T.) Ontario Ministry of Agriculture and Food, P.O. Box 400, Main Street, Ridgetown, ON N0P 2C0, Canada; (S.R.) Centre de recherche sur les grains, 2700 Einstein Street, Sainte-Foy, QC G1P 3W8, Canada; and (T.R.A.) Greenhouse and Processing Crops Research Centre, Agriculture and Agri-Food Canada, 2585 County Road 20, Harrow, ON N0R 1G0, Canada. Genetic diversity between Melampsora spp., causal agents of foliar rusts. M.J. Bergeron, M. Bourassa, D.L. Joly, and R.C. Hamelin. Canadian Forest Service, Natural Resources Canada, Sainte-Foy, QC G1V 4C7, Canada. Molecular diagnosis of Phytophthora ramorum by realtime polymerase chain reaction, using Taqman®, SybrGreen, and Molecular beacons. G. Bilodeau, C.A. Lévesque, A.W.A.M. De Cock, G. Kristjansson, J. McDonald, and R.C. Hamelin. Natural Resources Canada, 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.A.M.D.C.) Centraalbureau voor Schimmelcultures, NL-3508 AD Utrecht, Netherlands; and (G.K., J.M.) Canadian Food Inspection Agency, Ottawa, ON K2H 8P9, Canada. Première observation du Melampsora larici-populina au Canada. M. Bourassa, L. Innes, L. Marchand, P. Frey et R.C. Hamelin. Service canadien des forêts, Ressources naturelles du Canada, Sainte-Foy, QC G1V 4C7, Canada; (L.I., L.M.) Direction de la conservation des forêts, ministère des Ressources naturelles du Québec, Sainte-Foy, QC G1P 3W8, Canada; et (P.F.) Institut national de la recherche agronomique – Nancy, Unité de pathologie forestière, 54280 Champenoux, France. Spatial distribution of ascospores of Venturia inaequalis within the tree canopy.O. Carisse and D. Rolland. Horticultural Research and Development Centre, Agriculture and Agri-Food Canada, 430 Gouin Boulevard, Saint-Jean-sur- Richelieu, QC J3B 3E6, Canada. Incidence of iprodione-insensitive isolates of Botrytis squamosa. O. Carisse and M. Tremblay. Horticultural Research and Development Centre, Agriculture and Agri-Food Canada, 430 Gouin Boulevard, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada. The significance of ethylene in the interaction between Nicotiana tabacum and Colletotrichum destructivum. N. Chen, P.H. Goodwin, and T. Hsiang. Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Interactions between weakly and highly virulent strains of Leptosphaeria maculans, leading to induced resistance to black leg in canola. Y. Chen and W.G.D. Fernando. Department of Plant Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada. Optimization of geldanamycin production by Streptomyces melanosporofaciens strain EF-76, a biocontrol agent of plant diseases. N. Clermont and C. Beaulieu. Centre d’étude et de valorisation de la diversité microbienne, Département de biologie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada. Reduction of potato scab with volatile fatty acids and acidified liquid swine manure in soil amendments. K.L. Conn, P.A. Abbasi, Y. Lin, and G. Lazarovits. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON N5V 4T3, Canada. Genetic and chemical control of Rhizoctonia solani on chickpea. E.B. Connor and R. Hall. Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. M13 DNA fragment as an external control to normalize quantification of fungal DNA from soil by real-time polymerase chain reaction. A.L. Dauch, A.K. Watson, and S.H. Jabaji-Hare. Department of Plant Science, McGill University, 21 111 Lakeshore Road, QC H9X 3V9, Canada. A satellite double-stranded RNA in hypovirulent isolates of Sclerotinia homoeocarpa. F. Deng and G.J. Boland. Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Effect of 1-methylcyclopropene on postharvest blue and gray molds of apples and pears. D. Errampalli. Southern Crop Protection and Food Research Centre, Vineland Station, Agriculture and Agri-Food Canada, Vineland, ON L0R 2E0, Canada. Fusarium spp. in residues of cereal and noncereal crops grown in rotation in eastern Saskatchewan. M.R. Fernandez, P.G. Pearse, and G. Holzgang. Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, Swift Current, SK S9H 3X2, Canada; and (P.G.P., G.H.) Saskatchewan Agriculture, Food and Rural Revitalization, 3085 Albert Street, Regina, SK S4S 0B1, Canada. Impact of rotation sequence on common root rot of wheat in the Brown soil zone of western Canada. M.R. Fernandez and R.P. Zentner. Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1030, Swift Current, SK S9H 3X2, Canada. Temperature sensitivity of resistance genes to oat stem rust. T. Fetch. Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, MB R3T 2M9, Canada. Potential role of lipid-transfer proteins in resistance to snow mould in winter wheat. D.A. Gaudet, M. Frick, S. Huang, N. Foroud, B. Puchalski, T. Despins, F. Eudes, and A. Laroche. Lethbridge Research Centre, Agriculture and Agri-Food Canada, P.O. Box 3000, Lethbridge, AB T1J 4B1, Canada. Pathotypes of Cochliobolus sativus in Manitoba. H. Ghazvini and A. Tekauz. Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, MB R3T 2M9, Canada. Persistence of Ascochyta rabiei in chickpea residue in Saskatchewan. B.D. Gossen. Saskatoon Research Centre, Agriculture and Agri-Food Canada, Saskatoon, SK S7N 0X2 Canada. Effect of tillage management on diseases of canola in Saskatchewan. B.D. Gossen and H.R. Kutcher. Saskatoon Research Centre, Agriculture and Agri-Food Canada, Saskatoon, SK S7N 0X2, Canada. Soluble invertase, and not invertase bound to cell wall, supplies hexose from wheat to powdery mildew. D.L. Greenshields, F. Wang, G. Selvaraj, and Y. Wei. Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada; and (G.S.) Plant Biotechnology Institute, National Research Council of Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, Canada. Characterization of Rhizoctonia solani infecting lettuce in Germany. R. Grosch, J.H.M. Schneider, and A. Kofoet. Institute of Vegetable and Ornamental Crops, Echtermeyer Weg 1, D-14979 Großbeeren, Germany; and (J.H.M.S.) Institute of Sugar Beet Research, P.O. Box 32, 4600 AA Bergen op Zoom, Netherlands. Fungi associated with the European pine shoot beetle, Tomicus piniperda, in southern Ontario. G. Hausner, C.N. Davis, E.A. Gibb, J. Reid, and A.A. Hopkin. Department of Microbiology, University of Manitoba, Winnipeg, MB R3T 2N2, Canada; (C.N.D., A.A.H.) Great Lakes Forestry Centre, Canadian Forest Service, 1219 Queen Street, Sault Sainte Marie, ON P6A 2E5, Canada; and (J.R.) Senior Scholar, Department of Botany, University of Manitoba, Winnipeg, MB R3T 2N2, Canada. Godronia canker of lowbush blueberry. P.D. Hilderbrand, W.E. Renderos, R.J. Davies, and K.B. McRae. Atlantic Food and Horticulture Research Centre, Agriculture and Agri-Food Canada, 32 Main Street, Kentville, NS B4N 1J5, Canada. Use of polymerase chain reaction – single–strand conformational polymorphism analysis to monitor impacts of biocontrol agents on selected microbial populations in soybean crops.R. Hogue, E. Plante, I. Larouche, R. Jeannotte, and N. Daigle. Institut de recherche et de développement en agroenvironnement, 2700, rue Einstein, Sainte-Foy, QC G1P 3W8, Canada; and (R.J.) Department of Natural Resources Sciences, Université McGill, Sainte- Anne-de-Bellevue, QC H9X 3V9, Canada. Confirmation of the role of ascospores in field epidemics of speckled leaf blotch of wheat in Manitoba. C. Hoorne, L. Lamari, and G.M. Ballance. Department of Plant Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada. Effects of seeding rate, seeding depth, and seed infection on mycosphaerella blight and seed yield of field pea. S.F. Hwang, R.L. Conner, K.F. Chang, G.D. Turnbull, R.J. Howard, and S.F. Blade. Alberta Research Council, Vegreville, AB T9C 1T4, Canada; (R.L.C.) Cereal Research Centre, Agriculture and Agri-Food Canada, Morden Research Station, Unit 100–101, Route 100, Morden, MB R6M 1Y5, Canada; (K.F.C.) Food and Rural Development, Field Crop Development Centre, Alberta Agriculture, Lacombe, AB T4L 1W1, Canada; (R.J.H.) Food and Rural Development, Crop Diversification Centre South, Alberta Agriculture, Brooks AB T1R 1E6, Canada; and (S.F.B.) Food and Rural Development, Crop Diversification Centre North, Alberta Agriculture, Edmonton, AB T5J 4K3, Canada. Effect of antagonistic fungi on the production of perithecia of Gibberella zeae on wheat residue. S. Inch and J. Gilbert. Cereal Research Centre, Agriculture and Agri-Food Canada, 195 Dafoe Road, Winnipeg, MB R3T 2M9, Canada. Characterization of Phoma lingam isolates recovered from Canadian accessions of Thlaspi arvense. M.R. Islam, B. Koopmann, R.K. Gugel, and G. Séguin-Swartz. Institute for Plant Pathology and Plant Protection, Georg- August-Universität Göttingen Grisebachstr. 6, 37077 Göttingen, Germany; and (R.K.G., G.S.-S.) Saskatoon Research Centre, Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N 0X2, Canada Influence of inoculum sources on cultivar susceptibility to apple scab. T. Jobin, P. Neumann, and O. Carisse. Département des sciences biologiques, Université de Montréal, C.P. 6128, Montréal, QC H3C 3J7, Canada; and (O.C.) Horticultural Research and Development Centre, Agriculture and Agri-Food Canada, 430 Gouin Boulevard, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada. Photosynthesis, net carbon gain, and growth of hydroponic bell peppers (Capsicum annuum ‘Cubico’) following root infection by Pythium aphanidermatum. M. Johnstone, S. Chatterton, J. Sutton, and B. Grodzinski. Department of Plant Agriculture University of Guelph, Guelph, ON N1G 2W1, Canada; and (S.C., J.S.) Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Local and systemic induced resistance to the root-knot nematodes (Meloidogyne incognita) in tomato by different doses of chemicals and its comparison with a biological control agent (Paenibacillus polymyxa). H.U. Khan and Y.H. Kim. Pakistan Science Foundation, Islamabad, Pakistan; and (Y.H.K.) School of Agricultural Biotechnology, Seoul National University, Suwon 441-744, Korea. Cultural control of sclerotinia rot of carrot by lateral clipping of carrot canopy. C. Kora, M.R. McDonald, and G.J. Boland. Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada; and (M.R.M) Department of Plant Agriculture, University of Guelph, Guelph, ON N1G 2W1, Canada. Metabolic fingerprinting, using mass ions to discriminate diseases of potato.A.C. Kushalappa, L.H. Lui, A. Vikram, and B. Prithiviraj. Plant Science Department, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada. Intensive crop rotations of canola and field pea in western Canada. H.R. Kutcher, D. Ulrich, and S. Brandt. Melfort Research Farm, Saskatoon Research Centre, Agriculture and Agri-Food Canada, P.O. Box 1240, Melfort, SK S0E 1A0, Canada; and (D.U., S.B.), Scott Research Farm, Saskatoon Research Centre, Agriculture and Agri-Food Canada, Scott, SK S0K 4A0, Canada. Development and design of a marker based on polymerase chain reaction for the detection of Fusarium proliferatum isolates from field-grown asparagus.K. Labour, M. St-Arnaud, and S.H. Jabaji-Hare. Department of Plant Science, McGill University, 21 111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada; and (M.S.-A.) Jardin botanique de Montréal and Institut de recherche en biologie végétale, 4101, rue Sherbrooke Est, Montréal, QC H1X 2B2, Canada. Use of acidic electrolyzed water for reducing populations of Xanthomonas campestris pv. vesicatoria on tomato seed and foliage. G. Lazarovits, P.A. Abbasi, and R. Earl. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON N5V 4T3, Canada. One-carbon metabolism in response to biotic and abiotic stresses. W. Liu, Y. Wei, and J. King. Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada. Relative importance of storage conditions on development of postharvest carrot diseases. T. MacDonald, R.N. Markarian, C. Vigneault, and V. Toussaint. Horticultural Research and Development Centre, Agriculture and Agri- Food Canada, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada. Involvement of antibiosis in the biocontrol of potato silver scurf by different bacteria. C. Martinez, J.-N. Simard, J. Labonté, R.R. Bélanger, and R.J. Tweddell. Centre de recherche en horticulture, Université Laval, Quebec, QC G1K 7P4, Canada. Mycelial interactions between vegetatively incompatible Fusarium graminearum (Gibberella zeae)isolates.B.D. McCallum, A. Tekauz, and J. Gilbert. Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, MB R3T 2M9, Canada. Latent infection and distribution of a hypovirulenceassociated double-stranded RNA (OnuMV3a) in populations of Sclerotinia homoeocarpa. M.S. Melzer, F. Deng, and G.J. Boland. Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. In vitro effects of salt compounds on radial growth, sporulation, and spore germination of postharvest potato diseases. A.A.S. Mills, H.W. Platt, R.A.R. Hurta, and R.A. MacPhail. Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 440 University Ave., Charlottetown, PE C1A 4N6, Canada; and (R.A.R.H.) Department of Biology, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada. Patterns of gene expression during infection of soybean by Phytophthora sojae. P. Moy, I. Atkinson, D. Qutob, and M. Gijzen. Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON N5V 4T3, Canada. Some factors involved in soil disturbance that reduces disease of wheat caused by Rhizoctonia solani AG 8. S.M. Neate. Department of Plant Pathology, North Dakota State University, P.O. Box 5012 Fargo, ND 58105-5012, U.S.A. Comparison of epidemics caused by Pythium aphanidermatum and P. dissotocum in pepper plants grown in small-scale hydroponic trough systems. T.N. Owen-Going and J.C. Sutton. Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada. Molecular differentiation between Peridermium harknessiiand Cronartium quercuum f. sp. banksianae. F. Paradis, D.L. Joly, J. Walla, and R.C. Hamelin. Laurentian Forestry Centre, Natural Resources Canada, Sainte- Foy, QC G1V 4C7, Canada; and (J.W.) Plant Pathology Department, North Dakota State University, Fargo, ND 58105-5012, U.S.A. Refining the protocols for screening of resistance of spring wheat to fusarium head blight under controlled conditions. M.P. Pradhan and J. Gilbert. Cereal Research Centre, Agriculture and Agri-Food Canada, 195 Dafoe Road, Winnipeg, MB R3T 2M9, Canada. Effect of soil amendments on common scab of potato and soil bacterial communities. K. Prévost, B. Shipley, and C. Beaulieu. Centre d’étude et de valorisation de la diversité microbienne, Département de biologie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada. Volatile metabolite profiling of cultivars of onion differing in resistance to Fusarium oxysporum, Botrytis allii, and Erwinia carotovora subsp. carotovora. B. Prithiviraj, A. Vikram, and A.C. Kushalappa. Department of Plant Science, Macdonald Campus, McGill University, Sainte-Annede- Bellevue, QC H9X 3V9, Canada. Effect of biological and nutritional factors on development of cylindrocarpon root rot on American ginseng. M. Rahman and Z.K. Punja. Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada. Flax rust races – an important collection needs preservation. K.Y. Rashid. Cereal Research Centre, Agriculture and Agri-Food Canada, Morden Research Station, Unit 100–101, Route 100, Morden, MB R6M 1Y5, Canada. Epidemiology of sclerotinia head rot in wild sunflower. K.Y. Rashid and G.J. Seiler. Cereal Research Centre, Agriculture and Agri-Food Canada, Morden Research Station, Unit 100–101, Route 100, Morden, MB R6M 1Y5, Canada; and (G.J.S.) Northern Crop Science Laboratory, Agricultural Research Service, United States Department of Agriculture, Fargo, ND 58105, U.S.A. Use of bacteriophages for the management of soft rot of calla lilies caused by Erwinia sp. in closed irrigation systems. M. Ravensdale, T. Blom, J. Gracia-Garza, and A. Svircev. Department of Plant Agriculture, University of Guelph, Guelph, ON N1G 2W1, Canada; and (J.G.G., A.S.) Southern Crop Protection and Food Research Centre, Vineland Station, Agriculture and Agri-Food Canada, Vineland, ON L0R 2E0, Canada. An epidemiological study of verticillium wilt of potatoes: host–pathogen interactions of various Verticillium spp. N. Robinson, H.W. Platt, 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.) Department of Biology, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada. Assessment of soil or compost suppressiveness to Sclerotinia sclerotiorum under growth chamber condition: correlations with laboratory and field assessments. G. Rousseau, S. Rioux, and D. Dostaler. Département de phytologie, Pavillon des sciences de et de Université Laval, Québec, QC G1K 7P4, Canada; and (S.R.) Centre de recherche sur les grains, 2700, rue Einstein, Sainte-Foy, QC G1P 3W8, Canada. A to monitor soil or compost suppressiveness to Sclerotinia sclerotiorum under laboratory conditions. G. and R. Département de phytologie, Pavillon des sciences de et de Université Laval, Québec, QC G1K 7P4, Canada; and des Institut de recherche 32, France. The Centraalbureau voor the of the R.A. and Centraalbureau voor Schimmelcultures, P.O. Box AD Utrecht, Netherlands. to Rhizoctonia solani AG in in the Netherlands. J.H.M. and Y. Institute of Sugar Beet Research, P.O. Box 32, 4600 AA Bergen op Zoom, Netherlands. to Rhizoctonia solani AG in in the Netherlands. J.H.M. and Y. Institute of Sugar Beet Research, P.O. Box 32, 4600 AA Bergen op Zoom, Netherlands. to Rhizoctonia solani AG in plant and J.H.M. Schneider, and S. Jabaji-Hare. Institute of Sugar Beet Research, P.O. Box 32, 4600 AA Bergen op Zoom, Netherlands; and Department of Plant Science, McGill University, 21 111 Lakeshore Road, Bellevue, QC H9X 3V9, Canada. and L. and University of Edmonton, AB Canada. of seedling resistance to diseases in wheat. and Department of Plant Sciences, University of Saskatchewan, Drive, Saskatoon, SK S7N Canada. Characterization of a metabolite by a causal agent of blight on field H. S.F. Hwang, K.F. Chang, S.F. G.D. Turnbull, and R.J. Alberta Research Council, Vegreville, AB T9C 1T4, Canada; (K.F.C.) Field Crop Diversification Centre, Alberta Agriculture, Food and Rural Development Lacombe, AB T4L 1W1, Canada; (S.F.B.) Crop Diversification Centre North, Edmonton, Edmonton, AB 4K3, Canada; and (R.J.H.) Crop Diversification Centre South, AB T1R 1E6, Canada. Assessment of fungi as biological control agents of in G. S.F. and Z.K. Punja. Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC 1S6, Canada; and Forestry Centre, Canadian Forest Service, BC Canada. and biocontrol by a of in the of and M. of University, Department of Molecular and University of Guelph, Guelph, ON Canada. of fusarium head blight in Canadian A. Tekauz. Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, MB R3T 2M9, Canada. fungi from oat in western Canada in A. Tekauz, N. B. McCallum, and J. Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, MB R3T 2M9, Canada. In vitro interaction between the wheat and of K. and Department of Plant Science, McGill University, 21 111 Lakeshore Road, Bellevue, QC H9X 3V9, Canada. of Xanthomonas campestris pv. in to disease and of lettuce leaf on bacterial V. and O. Carisse. Horticultural Research and Development Centre, Agriculture and Agri-Food Canada, 430 Gouin Boulevard, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada; and de pathologie végétale, Institut national de la recherche France. in causal for and disease control N. L. MacDonald, and Z.K. Punja. Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada; and Ministry of Agriculture, Food and Road, BC Canada. volatile from apple with fungal pathogens. A. Vikram, B. Prithiviraj, and A.C. Kushalappa. Plant Science Department, McGill University, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada. of development of late blight in potato using polymerase chain reaction. O. F. L. Lamari, and L. Department of Plant Science, University of Manitoba, Agriculture Winnipeg, MB R3T 2N2, Canada. Molecular detection of in and in during O. F. M. L. B. T. P. and S. Department of Plant Science, University of Manitoba, Agriculture Winnipeg, MB R3T 2N2, Canada; Alberta Research Council, P.O. Box Vegreville, AB T9C 1T4, Canada; and Agriculture and Food, P.O. Box MB Canada. of Streptomyces potato by polymerase chain reaction. A. and G. Lazarovits. Department of Biology, Biological and University of London, ON Canada; and Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON N5V 4T3, Canada. Molecular and of of a involved in fungal F. Wang, G. Selvaraj, and Y. Wei. Department of Biology, University of Saskatchewan, 112 Science Saskatoon, SK S7N 5E2, Canada; and (G.S.) Plant Biotechnology Institute, National Research Council of Canada, 110 Gymnasium Place, Saskatoon, SK S7N 0W9, Canada. Impact of on Wang, S.F. Hwang, B.D. K.F. Chang, G.D. Turnbull, and R.J. Alberta Research Council, Vegreville, AB T9C 1T4, Canada; Saskatoon Research Centre, Agriculture and Agri-Food Canada, Saskatoon, SK S7N 0X2, Canada; (K.F.C.) Field Crop Development Centre, Lacombe, AB T4L Canada; and (R.J.H.) Crop Diversification Centre South, Alberta Agriculture, Food and Rural Development, AB T1R 1E6, Canada. The role of in germination and development in Colletotrichum J. and Department of Botany, University of ON Canada. gene expression of and A in potato with and of Phytophthora and F. Department of Plant Science, Agriculture University of Manitoba, Winnipeg, MB R3T 2N2, Canada. Epidemiology of in R.R. MacDonald, and Z.K. Punja. Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada; Horticultural Crops Research Laboratory, Agricultural Research Service, United States Department of Agriculture, Avenue, and Ministry of Agriculture, Food and Road, BC Canada. of leaf blight in carrot by of S.M. A. and M.R. Department of Plant Agriculture, Crop Science University of Guelph, Guelph, ON N1G 2W1, Canada. Effect of a on by the G.J. and Department of Plant Pathology, University of U.S.A. and wheat response to leaf rust. T. D. M. C. W. T. and B. Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, MB R3T 2M9, Canada; and Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada. in biotic and abiotic stresses. T. T. and J. Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, MB R3T 2M9, Canada; and Department of Biological Sciences, University of South U.S.A. for gene T. and J. Cereal Research Centre, Agriculture and Agri-Food Canada, Winnipeg, MB R3T 2M9, Canada. of isolates of Fusarium spp. head blight in wheat. G. Y. Chen, F. and C. Eastern Cereal and Oilseed Research Centre, Agriculture and Agri- Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada. Effect of seed on of different of soybean E. T.R. Anderson, S. Rioux, R. and M. Eastern Cereal and Oilseed Research Centre, Agriculture and Agri–Food Canada, 960 Carling Avenue, Ottawa, ON K1A 0C6, Canada; (T.R.A.) Greenhouse and Processing Crops Research Centre, Agriculture and Agri–Food Canada, 2585 County Road 20, Harrow, ON N0R 1G0, Canada; (S.R.) Centre de recherche sur les grains, 2700, rue Einstein, Sainte-Foy, QC G1P 3W8, Canada; and University of Guelph, Guelph, ON N1G 2W1, Canada. Effect of on the of and in potato H. R. and R.J. Tweddell. Centre de recherche en horticulture, Université Laval, Québec, QC G1K 7P4, Canada; and Centre de recherche et de développement en horticulture, Agriculture et Canada, Saint-Jean-sur-Richelieu, QC J3B 3E6, Canada. chain reaction – for Fusarium diversity in E. M. V. and M. Institut de recherche en biologie végétale, Université de Montréal, and Jardin botanique de Montréal, Montréal, QC H1X 2B2, Canada.

International audience

Ensuring Equitable Access to School Meals

Restoring tallgrass prairie species mixtures on leafy spurge-infested rangeland

The Fourth Canadian Workshop on Fusarium Head Blight / Quatrième colloque canadien sur la fusariose

Jeneberang watershed management plays an important role to the function of Bili-Bili Dam as a multipurpose dam in maintaining year-round water availability (quantity and distribution), agricultural irrigation, water supply for the local freshwater provider (PDAM), demand on drinking water, and hydroelectric power plants in Gowa, Takalar, and Makassar. The study tried to answer the emerging problem of how to predict the hydrological state and water availability in the Jeneberang watershed throughout the year. This study applied the SWAT (Soil and Water Assessment Tool) model, a distributed model connected to the Geographic Information System (GIS) developed by Jeff Arnold for the USDA ARS (US Department of Agriculture - Agriculture Research Service). The hydrological model would be applied to evaluate a scenario of the climate change effects on the hydrology state. Understanding the watershed hydrological response to the changes in physics (land use) and climate (rainfall and air temperature) is an important component of water resource planning and management (Vorosmarty et al., 2000). One of the performance indicators for the watershed water balance is river discharge fluctuation (Surahman, 2016). The river regime coefficient demonstrates fluctuation in river discharge, a number showing the ratio between maximum discharge (Qmax) and minimum discharge (Qmin). SWAT model analysis showed the highest discharge (Qmax) of 30,805 m³/sec and lowest discharge (Qmin) of 994 m³/sec. The analysis employed the data of 2006 and 2009, resulted in the Nash-Sutcliffe (NS) Efficiency values of 0.65 (satisfied) and R2 of 0.88 that in line with a study of Yusuf (2010) at the Cirasea watershed (0.74) and Junaidi (2011) at the Cisadane watershed (0.70). This value indicates that the SWAT method can predict the hydrological state of watersheds in Indonesia, including the Jeneberang watershed.

Corrigendum to “Characterization of wild Prunus yedoensis analyzed by inter-simple sequence repeat and chloroplast DNA” [Sci. Hortic. (2007) 121–128

Following the passage of the Farm Security and Rural Investment Act of 2002, also known as the "2002 Farm Bill", which significantly increased funding for conservation programs, the U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS), the USDA Agricultural Research Service (ARS) and other USDA agencies created the Conservation Effects Assessment Project (CEAP) in 2003. The goal of CEAP is to measure the effects of agricultural conservation practices and develop the science-base for managing agricultural landscapes for environmental quality. The CEAP Watershed Assessment Studies, a partnership between NRCS, ARS, and numerous other federal and university partners, quantify the effects of conservation practices on water quality, water availability, and soil health within small watersheds. Field and watershed studies also help build understanding of the processes that are influenced by or drive conservation practice effects. This brochure describes the currently active 23 watershed studies at 18 locations and the research findings to date. These findings, the improved simulation models, and the newly developed conservation practices and assessment tools contribute towards more effective conservation strategies to address goals and document outcomes for the USDA Mississippi River Basin Healthy Watersheds Initiative, the Great Lakes Restoration Initiative, the Chesapeake Bay Watershed Initiative, the Lake Champlain Basin Initiative, and local source water protection efforts

Biodiversity research is seeing unprecedented global collaboration with initiatives such as the Earth BioGenome Project, an effort to sequence all known eukaryotic life, and Genesys, a global database for sharing crop genetic resources. However, as in other disciplines, public funding and policy for scientific research in agriculture tend to follow national borders even when science and its collaborations do not. In addition, agriculture is similar to biomedicine in having significant private investment in research and development where competition could inhibit sharing. It would seem that significant challenges lie ahead for making progress on ambitious global initiatives at least where agricultural samples, collections, and data are concerned. In this talk we will review several activities at the United States Department of Agriculture that illustrate how policy and infrastructure can overcome difficulties. For example, recent policies for openness of publicly-funded research products and adoption of FAIR data principles even for private or proprietary data hold promise and have elevated the importance of data infrastructure. The US Department of Agriculture's Agricultural Research Service (ARS) launched its Ag100Pest contribution to the Earth BioGenome Project, including the use of the i5K Workspace@NAL platform for its sequenced and annotated genomes. The GRIN Global platform supports not just USDA germplasm data management but a growing network of plant and animal researchers and collections around the world. The Ag Data Commons provides standardized metadata and machine-readable data dictionaries to the publicly accessible products of these and other USDA-funded efforts. It is teaming with the ARS high performance computing system SCINet to explore cost-effective public access to big data storage for agricultural data and models. Finally, many of these efforts extend and contribute back to widely used open source software systems. While challenges remain in coordinating and sustaining these efforts with international stakeholders, engagement with groups like AgBioData, the Research Data Alliance (RDA) Interest Group on Agricultural Data, and the Global Open Data for Agriculture and Nutrition coalition will continue to bear fruit (pun intended). We seek similar engagement with the broader biodiversity data community in order to ensure that policy and infrastructure investments result in maximum mutual benefit.

Crop ScienceVolume 10, Issue 4 cropsci1970.0011183X001000040068x p. 463-464 Registration of Elite Germplasm Registration of Thin-Hulled, Structurally Male-Sterile Safflower Lines, th-5 and th-101 (Reg. No. PL 1 and PL 2) A.L. Urie, A.L. UrieSearch for more papers by this authorD.E. Zimmer, D.E. Zimmer Research Agronomist and Research Plant Pathologist, Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Logan, Utah 84321. Present addresses: U.S. Cotton Research Station, Shafter, Calif. 93263, and North Dakota State Univ., Fargo 58102, respectively.Search for more papers by this author A.L. Urie, A.L. UrieSearch for more papers by this authorD.E. Zimmer, D.E. Zimmer Research Agronomist and Research Plant Pathologist, Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Logan, Utah 84321. Present addresses: U.S. Cotton Research Station, Shafter, Calif. 93263, and North Dakota State Univ., Fargo 58102, respectively.Search for more papers by this author First published: 01 July 1970 https://doi.org/10.2135/cropsci1970.0011183X001000040068x 1 Registered by the Crop Science Society of America. A cooperative project of the Crops Research Division, Agricultural Research Service, United States Department of Agriculture, and the Utah Agricultural Experiment Station. Published with the approval of the Director, Utah Agricultural Experiment Station. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume10, Issue4July–August 1970Pages 463-464 RelatedInformation

Editorial introductions

Crop ScienceVolume 11, Issue 1 cropsci1971.0011183X001100010078x p. 140-140 Registration of Germplasm Registration of Maize Germplasm Inbreds1 (Reg. Nos. GP 1 to 5) W. A. Russell, W. A. Russell Professor of Crop Breeding, Iowa State University, Ames, lowa 50010.Search for more papers by this authorL. H. Penny, L. H. Penny Research Agronomist, Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Ames, Iowa.Search for more papers by this authorW. D. Guthrie, W. D. Guthrie Research Entomologists, Entomology Research Division, Agricultural Research Service, U.S. Department of Agriculture, Ames, Iowa. (Mr. Dicke is now located with the Pioneer HiBred Corn Company.)Search for more papers by this authorF. F. Dicke, F. F. Dicke Research Entomologists, Entomology Research Division, Agricultural Research Service, U.S. Department of Agriculture, Ames, Iowa. (Mr. Dicke is now located with the Pioneer HiBred Corn Company.)Search for more papers by this author W. A. Russell, W. A. Russell Professor of Crop Breeding, Iowa State University, Ames, lowa 50010.Search for more papers by this authorL. H. Penny, L. H. Penny Research Agronomist, Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Ames, Iowa.Search for more papers by this authorW. D. Guthrie, W. D. Guthrie Research Entomologists, Entomology Research Division, Agricultural Research Service, U.S. Department of Agriculture, Ames, Iowa. (Mr. Dicke is now located with the Pioneer HiBred Corn Company.)Search for more papers by this authorF. F. Dicke, F. F. Dicke Research Entomologists, Entomology Research Division, Agricultural Research Service, U.S. Department of Agriculture, Ames, Iowa. (Mr. Dicke is now located with the Pioneer HiBred Corn Company.)Search for more papers by this author First published: 01 January 1971 https://doi.org/10.2135/cropsci1971.0011183X001100010078xCitations: 10 1 Registered by the Crop Science Society of America. Contribution from the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa, and the Crops Research Division and the Entonmlogy Research Division, Agricultural Research Service, U.S. Department of Agriculture, cooperating. Journal Paper No. J-6646 of the Iowa Agr. and Home Econ. Exp. Sta. Project No. 1575. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume11, Issue1January–February 1971Pages 140-140 RelatedInformation