Three new questions on pre-seed burnoff with info on effective tank mixes, dust and target weeds. Canola success depends on effective early weed control.

1. With pre-seed burnoff, use a herbicide tank mix with products that work on the target weed. This is a bigger challenge with kochia. Agriculture and Agri-Food Canada researchers have confirmed kochia resistance to which four herbicide groups?

2, 4, 9 and 14

2, 3, 6 and 9

2, 9, 14 and 27

1, 2, 4 and 9

2. Dust on weed leaves is a particular issue for which pre-seed burnoff herbicide?

Bromoxynil

Carfentrazone

Glyphosate

Topramezone

3. Early weed control is important for canola profitability, and pre-seed burnoff is a good way to remove perennial and winter annuals weeds taking up moisture and nutrients. The article "Pre-Seed Burnoff: Tips for best results" lists four specific weeds to watch for in fields going into canola. Three are kochia, cleavers and flixweed. What is the fourth? 

Dandelion

Foxtail barley

Redroot pigweed

Volunteer canola

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