Canola Watch quiz – Spraying

1. For the first four questions, match the herbicide to its window of application on canola.

What is the crop-stage window of application for Ares herbicide on Clearfield canola?

2- to 6-leaf stage

2- to 7-leaf stage

Emergence to early bolting

Seeding to 6-leaf stage

2. What is the crop-stage window of application for IMI herbicides (besides Ares) on Clearfield canola?

2- to 6-leaf stage

2- to 7-leaf stage

Emergence to early bolting

Seeding to 6-leaf stage

3. What is the crop-stage window of application for glyphosate on Roundup Ready canola?

2- to 6-leaf stage

2- to 7-leaf stage

Emergence to early bolting

Seeding to 6-leaf stage

4. What is the crop-stage window of application for Liberty on Liberty Link canola?

2- to 6-leaf stage

2- to 7-leaf stage

Emergence to early bolting

Seeding to 6-leaf stage

5. Avoid spraying during an inversion. With inversion conditions, spray mist hangs in the air and can move to land anywhere. What two weather situations hint at a potential inversion?

Clear skies and low wind

Cloudy skies and low wind

High pressure and hot temperatures

Hot temperatures and low wind

6. You’re wondering about in-crop spray timing. Winter annuals are large but annuals are just emerging or not emerged yet. What do you do?

Spray now

Wait for more annuals