Insects

Lack of crop diversity can increase the density of pests in a field. The higher the population of a pest in a field, the

New research shows a statistically significant increase in crop damage by root maggots in continuous canola rotations. This increased damage coincided with reduced yields.

Harvest is a good time to assess your canola results and prep fields for canola in 2012. If yields were disappointing given the large

Bertha armyworm is at threshold levels in a few late fields in central Peace and western Saskatchewan regions. Lygus bug feeding continues in parts

Don’t let your guard down just yet. Berthas have been at thresholds in east central Alberta and western Saskatchewan fields in the past week.

Lygus populations continue to be high and exceed thresholds in parts of Alberta and Manitoba (around Morris and Altona). Once pods become leathery (role

Quite high populations of lygus are being found in parts of the Peace and southern and central Alberta (finding as many as 80 lygus

Bertha armyworm can be found in most fields in the central Peace with about 25% of the fields exceeding threshold and requiring spraying (around

Parts of the Swan River Valley were spraying for Bertha last week and now are contending with diamondback moth. Second generation larva and cocoons

Numbers of adults in southern Alberta range between 3 to 4 per sweep but the majority of fields are completely out of flower. Spraying

Cabbageworm larva populations are quite heavy in the central corridor on the western side of Saskatchewan and unprecedented amounts of adults can be found

Parts of the Peace are seeing grasshoppers migrate from other crops into field edges