Scott Meers, the provincial entomologist for Alberta, provides an insect forecast for 2011 in this video provided by the Government of Alberta. Please click on the following link to access……
Insects
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Flea beetles are the most chronically damaging insect pest of canola in western Canada. Direct losses to oilseed production average 8-10% of the annual crop yield, and in outbreak years flea beetles can cause hundred of millions of dollars damage.The nominal economic threshold for flea beetles in canola crops in Canada is an average defoliation level of 25% or more…
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Fields taken out of pasture or hayland last year and planned for canola this year could have high wireworm and cutworm populations. Wireworms can wipe out a whole field of canola and no seed treatment or spray is registered for wireworm control in canola…
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Given the rush to complete the seeding task, growers can't forget to scout their already emerged crop. Keep an eye out for cutworm damage…
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Lygus feeding at the bud stage is rarely an economic cost — unless the canola is under some other stress, such as drought. Stressed canola may not be able to compensate for lost buds the way a healthy crop can…
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Young canola plants are vulnerable to numerous stresses, particularly flea beetles, cutworms and seedling diseases. It pays to scout often at this time of the season…
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Scouting for flea beetles at field edges works early in the season when conditions are cool. With warmer weather, flea beetles will have moved throughout canola fields…
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Much of southern and central Alberta and parts of western Saskatchewan still have high levels of lygus bug feeding. Lygus bug numbers are up to 10 times economic control thresholds……