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They are: 10. White rust 9. Fusarium wilt 8. Grey stem 7. Alternaria black spot 6. Downy mildew 5. Root rot and foot rot 4. Aster yellows 3. Clubroot 2. Sclerotinia stem rot 1. Blackleg…
Top 10 diseases to look for in August
July 31, 2013
Diseases
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Scouting late July for disease
July 24, 2013
The window to control disease in canola is closed, so why scout? Well, because the period from podding to harvest is the easiest time to see diseases. And if you can identify which diseases are present, you can adjust your variety choice, crop rotation and fungicide use for subsequent years…
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Hail at flowering
July 10, 2013
Canola is quite resilient to light hail at up to 20% flower. The crop can flower longer to compensate, and may recover with only minimal to moderate yield loss. Canola has also shown remarkable recovery from more intense hail at 20% flower. However, a crop flattened by hail is unlikely to recover. If regrowth occurs, which is possible, plants are…
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Root maggots and disease
July 10, 2013
Root maggots and root disease often show up together in the same field. Root maggots are white and up to 10 mm (half an inch) long — just like maggots. Maggot feeding can damage root crowns and impede water movement, causing wilting. Severe feeding can cause plant death. Severe root maggot damage can occur in fields with back to back…
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Biologicial fungicide: Serenade use tips
July 10, 2013
Because Serenade works differently from other fungicides, we want to share these instructions for best results, as provided by Bayer CropScience:…
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Heat alone will not eliminate sclerotinia stem rot risk
July 4, 2013
Moisture has a much larger influence than temperature when it comes to sclerotinia risk. Infection can be high in hot weather as long as the moisture is there. Moisture can come from rain, relative humidity in the high 80s, or morning dew. Dew and high humidity can provide enough moisture for sclerotinia stem rot. If your pants get wet walking…
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Top 10 reasons to manage for sclerotinia stem rot this year
July 4, 2013
Three of the top 10 have to do with moisture, the key risk factor for sclerotinia stem rot…
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Top 10 tips from the 2013 International Clubroot Workshop
June 26, 2013
1. Have a plan to manage clubroot. Don't wait until clubroot manages you. Whether you're a farmer, agronomist, county/municipal staff, extension, or from the oil & gas industry, you need a clubroot management plan. A plan should include answers to the following: How will you quarantine a field? How will you plan your field work? When will you sanitize your…
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Moisture is the top sclerotinia risk factor
June 26, 2013
Growers with high risk conditions for sclerotinia stem rot may want to get their management plan in place. Booking fungicide may be worthwhile if you have a preferred product. This is pre-planning only. Fungicide applications must target flowers to be effective, so do not spray until a field reaches at least 20% flowering…