Return to Canola Council Home
(1) Many insecticides have limits on how many times a year they can be sprayed on a canola crop. (2) Check approvals for all products to be used on canola…
Insects
-
-
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… -
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…
-
… -
Flea beetle thresholds don’t change with frost, but frost may have changed the crop assessment situation. Here’s how… -
Slow canola emergence due to cool soils can increase the risks from seedling diseases and from flea beetles… -
The Canola Council of Canada agronomy team came up with 12 agronomy priorities for 2015, and then ranked them. Here are the top 10, with our highest ranked topic placed first. We will cover these topics in more detail throughout 2015… -
Flea beetles feeding on pods is unlikely to cause an economic loss. Entomologists have not set thresholds for late season flea beetle feeding, but it’s generally believed that numbers have to be very high — perhaps 100 per plant — before economic losses occur. You may also note that flea beetles can be highly variable at this time of year,… -
Thrips cause curled or twisted pods on canola and can also cause damage like that shown in the photo above. The good news is that economic levels of damage from thrips are very rare…
