Home / Canola Watch / Page 262

• • 2012 - Issue 13

  May 24, 2012

  • Insects

  Aster leafhoppers arrive. Are they carrying aster yellows?

  Aster leafhoppers were spotted in North Dakota, Manitoba and Saskatchewan in significant numbers this week. Leafhoppers can carry aster yellows phytoplasm, but the percentage of the population carrying it tends…

  Read more
• • 2012 - Issue 13

  May 24, 2012

  • Plant establishment

  Check patches in crust-prone soil

  Rains can help to mellow soils that had crusted after a couple weeks of dry conditions, but the damage may have already been done. When scouting in fields with poor…

  Read more
• • 2012 - Issue 13

  May 24, 2012

  • Plant establishment

  Thin stands need extra protection

  For canola fields at or below 4-5 plants per square foot, consider lowering the action thresholds for insect, weed and disease management all season long…

  Read more
• • 2012 - Issue 12

  May 16, 2012

  Issues of the week

  Seeding progressed well this week but high winds dried out the seedbed and may have cut off or buried young seedlings or blown some seed out of the ground in……

  Read more
• • 2012 - Issue 12

  May 16, 2012

  • Plant establishment

  Tips to diagnose stand establishment issues

  Many factors can cause a thin canola stand. Proper diagnosis is important for effective management. Here are common factors, with diagnosis tips for each. Many more photos are posted at…

  Read more
• • 2012 - Issue 12

  May 16, 2012

  • Plant establishment

  Frost: Did the crop survive?

  It can take a few days after a frost before you can accurately answer that question. With a light frost of 0 C to -2 C, the risk of crop…

  Read more
• • 2012 - Issue 12

  May 16, 2012

  • Weeds

  Frost: When can I resume weed control?

  No time to wait? Growers who want to do a preseed burnoff and then get seeding may not want to wait 3-4 days for the weeds to recover from a…

  Read more
• • 2012 - Issue 12

  May 16, 2012

  • Plant establishment

  The reseed question. How many plants are enough?

  Research and grower experience over the years have shown that uniform stands of 1-2 plants per square foot will often outyield or match the yield of a reseeded crop with…

  Read more
• • 2012 - Issue 12

  May 16, 2012

  • Plant establishment

  Wind blows out seeds and plants

  Check the field closely. How much of the field is lost? Some seeds may still be in the soil, and for seedlings sheared off, there may be some later emerging…

  Read more