Insects

Three main lygus species are pests of canola in Canada. Colour and shape are somewhat different, but each should be counted equally when sweep

To answer the question, not likely. In most cases, only individual or small groups of plants are infested. The nominal threshold in canola is

Misshapen sack-shaped pods are often the result of aster yellows.

Thresholds for diamondback moth larvae are 100-150 larvae per square metre in immature to flowering plants and 200-300 larvae per square metre (20-30 per

Berth armyworm moth counts are generally low (fewer than 300 per trap) across the Prairies, which means a reduced risk for worm damage over

The current situation for lygus, bertha armyworm, cabbage seedpod weevil, diamondback moth and swede midge.

Before spraying, make sure your canola is at the right stage to be damaged by the worms and that the worms are actually the

Lygus is one insect you may find in canola this week, but spraying lygus before pod stages rarely provides an economic benefit. Lygus do

By this stage of the season, flea beetle and cutworm risks are lower because crops are bigger and these two insects are in natural

Keys to the spray decision are scouting and timing. The economic threshold is 20 CSPW per 10 sweeps generally across the field. If weevils

General wilting is likely environmental, but patches or individual plants could have some other cause. Dig them up carefully and look at their roots

Heat, drought, off-label herbicide applications, male sterility, insects, sulphur deficiency, boron deficiency.