Muck Vegetable Cultivar Trial & Research Report 2010
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Muck Vegetable Cultivar Trial & Research Report 2010 M.R. McDonald S. Janse L. Riches M. Tesfaendrias K. Vander Kooi Office of Research & Muck Crops Dept. of Plant Agriculture Research Station Report No. 60 Kettleby, Ontario Research and Cultivar Trial Report for 2010 University of Guelph Office of Research & Department of Plant Agriculture Muck Crops Research Station 1125 Woodchoppers Lane R.R. # 1 Kettleby, Ontario L0G 1J0 Phone (905) 775-3783 Fax: (905) 775-4546 www.uoguelph.ca/muckcrop/ INDEX Page Index .............................................................................................................................................................................. 1-3 Staff .................................................................................................................................................................................. 4 Co-operators ..................................................................................................................................................................... 5 Seed Sources – 2010 ......................................................................................................................................................... 6 Legend of Seed Sources ................................................................................................................................................... 7 Introduction and Acknowledgements ............................................................................................................................... 8 Weather Data: Precipitation .............................................................................................................. 10-11 Mean Temperature .................................................................................................... 12-13 Extreme Temperature ................................................................................................ 14-15 Growing Degree Days .................................................................................................... 16 RESEARCH PROJECTS Carrots 1. Comparison of Various Insecticide Seed Treatments and Foliar Sprays for Control of Damage by Carrot Rust Fly & Carrot Weevil in Carrots, 2010 ................................................................................................. 18-20 2. Evaluation of Various Coloured Carrots for Susceptibility to Cavity Spot, 2010 .............................................. 21-23 3. Evaluation of Fungicides on Carrot Inoculated with Sclerotinia sclerotiorum for Sclerotinia Rot of Carrot Disease Control, 2009-2010 ........................................................................................................................ 24-25 4. Evaluation of Ranman for Control of Cavity Spot on Carrots, 2010 .................................................................. 26-27 5. Evaluation of Fungicides and Canopy Trimming to Manage Sclerotinia Rot of Carrot, 2010 ........................... 28-29 6. Detection of Ascospores of Sclerotinia sclerotiorum Provides Accurate Timing for Managing Sclerotinia Rot of Carrot................................................................................................................................................ 30-31 7. Comparison of Various Carrot Cultivars Inoculated with Sclerotinia sclerotiorum for Resistance to Sclerotinia Rot of Carrot, 2009-2010 .......................................................................................................... 32-33 8. Demonstration of Carrot Foliage Trimming Technology for the Control and Management of Sclerotinia sclerotiorum and Sclerotinia Rot of Carrots in Ontario, 2010 ..................................................................... 34-35 9. Herbicide Tolerance in Carrots and Celery, 2009 ................................................................................................... 36 10. Evaluation of Different Coloured Carrots for Total Phenolic Content and Antioxidant Activity, 2009 ............ 37-39 …/continued RESEARCH PROJECTS – continued Page Cole Crops 11. Evaluation of Various Soil-Applied Insecticides for Control of Insect Pests of Cauliflower, 2010 ................... 40-41 12. Evaluation of Silver-Based Fungicides for Control of Black Leaf Spot (Alternaria brassicicola) and Downy Mildew (Personospora parasitica) on Cauliflower and Broccoli, 2010 ..................................................... 42-44 13. Comparison of Various Broccoli, Green & Napa Cabbage Cultivars for Resistance & Susceptibility to Clubroot, 2010 ............................................................................................................................................. 45-47 14. Evaluation of Biofungicides & Fungicides for Clubroot Control on Shanghai Pak Choi, 2010 ........................ 48-49 15. Efficacy of Biofungicides & Fungicides for the Reduction of Clubroot Incidence and Severity in Napa Cabbage, 2010 ............................................................................................................................................. 50-51 Onion 16. Evaluation of Various Seed Treatments for Control of Onion Maggot in Yellow Cooking Onions, 2010 ........ 52-54 17. Comparison of Products to Control Onion Thrips in Large Plot Field Trials, 2010 ........................................... 55-57 18. Evaluation of Rancona Seed Treatments for Control of Onion Smut in Yellow Cooking Onions, 2010 ........... 58-60 19. Evaluation of Various Seed Treatments for Control of Onion Smut in Yellow Cooking Onions, 2010 ............ 61-63 20. Evaluation of Phostrol for Control of Downy Mildew (Peronospora destructor) in Onions, 2010 ................... 64-65 21. Comparison of Various Rates of Experimental Fungicides for Control of Downy Mildew (Peronospora destructor) in Onions, 2010 ......................................................................................................................... 66-67 22. Comparison of Various Onion Cultivars for Resistance to Downy Mildew (Peronospora destructor) in Onions, 2010 ........................................................................................................................................... 68-69 23. Comparison of Various Fungicides for Control of Downy Mildew (Peronospora destructor) in Onions, 2010 ............................................................................................................................................... 70-72 24. Onion Herbicide Performance, 2010 .................................................................................................................. 73-74 25. Phosphorus Management in Organic (Muck) Soil, Small Scale (Tarp) Plots, 2010 ........................................... 75-77 26. Phosphorus Management in Organic (Muck) Soil, Large Scale Plots, 2010 ...................................................... 78-83 27. Evaluation of Phosphorus Requirements on Organic (Muck) Soil, 2010 ........................................................... 84-87 28. Phosphorus Management in Organic (Muck) Soil and Storage Quality, 2009-2010 ......................................... 88-89 29. Evaluation of Crop Nutrition on Onion Total Phenolic Content and Total Antioxidant Activity, 2009 ............ 90-91 Canola 30. Evaluation of Biofungicides and Fungicides on Incidence and Clubroot Symptom Development in Canola at Different Seeding Dates, 2010 ................................................................................................................ 92-93 31. Potential for Seed Transmission of Plasmodiophora brassicae Inoculum on Canola Seeds, 2010 ................... 94-95 32. Host Screening of Plasmodiophora brassicae for Resistance and Susceptibility, 2010 .................................... 96-97 33. Assessing the Disease Reaction of Brassica Lines to Plasmodiophora brassicae Pathotype 3, 2010 ................ 98-99 34. Influence of Temperature and pH on Incidence and Severity of Clubroot in Canola Grown in Controlled Environment Trials, 2010 ........................................................................................................................ 100-103 35. Evaluation of Boron Formulations for the Control of Clubroot on Canola, 2010 .......................................... 104-108 Miscellaneous 36. Evaluation of Phostrol for Control of Downy Mildew (Peronospora farinosa) on Spinach, 2010 ........................ 109 37. Evaluation of an Experimental Fungicide for Control of Sclerotinia Drop on Inoculated Lettuce, 2010 ...... 110-111 38. Evaluation of Fungicides for Control of Downy Mildew (Bremia lactucae) on Lettuce, 2010 ..................... 112-114 39. Evaluation of Fungicides and Their Rates for Control of Downy Mildew (Bremia lactucae) on Lettuce, 2010 ........................................................................................................................................... 115-117 …/continued RESEARCH PROJECTS – continued Page 40. Evaluation of Biological Fungicide for Control of White Mould on Inoculated Snap Beans, 2010 .............. 118-119 41. Tolerance of Leeks to Herbicides, 2010 ................................................................................................................. 120 42. Efficacy of Residual Herbicides on Muck Soil, 2010............................................................................................. 121 43. Evaluation of Crop Phosphorus Requirements on Organic (Muck) Soil, 2009-2010 ..................................... 122-125