Home / Canola Watch / Weeds / Page 3
-
Recent wet and dry cycles have increased topsoil salinity in many parts of the Prairies over the past few years. “Salinity is not a salt problem, it’s a water problem,” says Marla Riekman, soil management specialist with Manitoba Agriculture and Resource Development. “Wet years bring the water table closer to the roots, and salinity wicks up to the soil surface.”…
-
Simple but effective... Tank mixes are recommended to control canola volunteers and glyphosate-resistant kochia, and to protect the long-term viability of glyphosate…
-
The snow layer is likely to insulate the weed leaf material from the colder conditions that follow it. That could mean you’re back spraying earlier than you would be with frost alone…
-
The general advice is to leave them. As annuals, frost and winter will kill off most of them, and any money spent trying to control these volunteers would be wasted. Possible exceptions that may change your approach…
-
These weed patch cut-arounds are easy to do when straight combining. The key is to destroy those patches with a mower or cultivator before they set seed…
-
If you have a canola field with a lot of perennial weed escapes, especially Canada thistle, are you better to spray them pre-harvest or post-harvest for maximum efficacy? There are benefits to both options…
-
Tall waterhemp is confirmed in eastern Manitoba. Palmer amaranth is in North Dakota and moving north toward Manitoba and Saskatchewan. Both are big aggressive weeds with populations resistant to many herbicides, including glyphosate. If you find them, destroy them immediately…
-
Farmers will want to test escapes for glyphosate resistance so the weeds can be targeted for intense management before they start to shed their seeds…
-
Breanne Tidemann, research scientist with Agriculture and Agri-Food Canada, has been researching combine weed seed destructors. They’re not perfect because some weed seeds will shed their seed before harvest and some weed seeds, like thistles, are too light and fluffy, but no IWM practice is perfect. When farmers employ a few of these imperfect tools, they can start to get…
