QUIZ

1. These were found in one canola field in the Peace River region of Alberta. What are they?

Bristly cutworms

Click beetle larvae

Cranefly larvae

Scarab beetle larvae

2. The weed on the bottom left is redroot pigweed seedling (red arrow). What is the weed seedling on the top right (blue arrow)?

redroot pigweed (left) and waterhemp (right)

Lamb's quarters

Palmer amaranth

Volunteer canola

Waterhemp

3. What is caused this leaf discolouration?

Leaf discolouration due to excess moisture

A few days of standing water

Frost

Herbicide carryover

Phosphorus deficiency

4. Flea beetles have been chewing at this canola cotyledon. What is the leaf area loss?

15 per cent

25 per cent

35 per cent

50 per cent

5. Cabbage seedpod weevils are emerging and out and about across the Prairies. What is the right timing for a spray – if thresholds suggest a spray is warranted?

Cabbage seedpod weevil (close-up) on a canola plant

Bud stage, when first flowers start to open

Early flower, when the first pods reach 1″ in length.

Right now

At 500 growing degree days (GDD) Based 0°C

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