Pest Profile: Wild Oats
One of the leading weed pests in Western Canada, wild oats are grassy annual weeds prone to the development of herbicide resistance. Their seeds can persist in the soil for up to a decade and can be toughest to deal with during wet years, when they emerge from the soil in large numbers.
TYPE
- Annual
- Grassy
IDENTIFICATION
Plants grow up to 5 feet tall with smooth, erect stems. The head is an open panicle with spikelets typically containing 2 – 3 florets (and occasionally up to 7). The panicle may contain up to 250 seeds, ranging from black, brown, grey, yellow to white. At the seedling stage, the plant has a counter-clockwise leaf twist and no auricles, with hairs on the leaf margins.
CONTROL TIPS
- When scouting, check low spots in fields for wild oats, and keep an eye out for herbicide-resistant patches.
- Summerfallow increases the number of seeds that break dormancy, and weeds will emerge after each tillage operation. Fall tillage also helps reduce wild oat populations.
REGISTERED HERBICIDES
- ADAMA Glufosinate 150 SL
- ARROW ALL IN®
- BISON® 400 L
- BRAZEN® II
- DAVAI® 80 SL
- DAVAI A PLUS™
- DAVAI® Q PLUS
- INVOLVE® 50 WDG + Glyphosate
- LADDER ALL IN®
- LEOPARD®
- PHANTOM® 240 SL
- PRIORITY® + Glyphosate
- PYTHON®
- SQUADRON®
Please read each label to determine which herbicide is appropriate for the crop affected.