Home / Canola Watch / Page 187
-
Here are five important points to help with flea beetle scouting and management: 1. Flea beetle damage can advance quickly. 2. Flea beetles will keep eating on cool days. 3. Spray can be effective on cool days, but not wet days. 4. Stem feeding can be more damaging than leaf feeding. 5. Seed treatments are less effective on striped flea…
-
Is this insect a friend or foe? Try your ID skills on these less-common insects you might find in canola fields…
-
Flea beetle pressure is quite high in many locations. Spraying may be necessary. If damage was quick and devastating, growers may face a reseeding decision. Early scouting is necessary to make sure the seed treatment provides enough protection…
-
Frost, wind, cold soils and in some cases excess moisture have reduced canola stands. Some growers are thinking about reseeding. This week's quiz provides some background to help with the decision…
-
-
When growers have canola stands of fewer than 4 plants per square foot — due to low seeding rates, poor seed survival, insects, crusting, frost, wind, etc. — they grapple with the question whether to reseed. An established canola stand with as few as 1-2 plants per square foot generally has higher economic potential than if were to reseed that…
-
After a frost, it can take a few days to accurately determine how many plants survived, and whether the stand is still uniform. Be patient before making any decisions. Check the whole crop the day after a frost and then again 3-4 days after a frost to assess the situation…
-
Flea beetle thresholds don’t change with frost, but frost may have changed the crop assessment situation. Here’s how…
-
In dry soil conditions, growers may be tempted to seed deep enough to reach moisture. This is not necessary from April to mid-May, and may create more harm than good at any time. The common recommendation to seed no deeper than 1” still applies in dry conditions. Here’s why:…
Return to Canola Council Home
