Kochia may also be on the road to Group 10 herbicide resistance, which would be a serious blow to Prairie farmers and canola growers, warns weed scientist.
Tag Archives kochia
Glufosinate-resistant waterhemp found in U.S. Midwest
Kochia is also showing escapes when sprayed with the Group 10 herbicide, weed scientist warns
VIDEO: Taking the fight to kochia in North Dakota
There are a number of problem weeds that growers often contend with each season, but kochia is one weed problem in particular that’s of growing concern – and not only here on the Prairies, but also south of the border. Jason Hanson, a crop consultant in North Dakota, travelled to St. Jean Farm Days earlier
Crop-killing weeds advance across US farmland as chemicals lose effectiveness
Losing battle with weeds adds pressures to farmers already stressed by inflation, extreme weather
Crop-killing weeds such as kochia are advancing across the U.S. northern plains and Midwest, in the latest sign that weeds are developing resistance to chemicals faster than companies including Bayer BAYGn.DE and Corteva CTVA.N can develop new ones to fight them.
Early harvest opens options for fall weed control
Spraying tips to use once the combine is parked
[UPDATED: Oct. 11, 2023] An early harvest gives farmers the opportunity to get ahead of weeds for next season, says Manitoba Agriculture weed specialist Kim Brown. Weeds have had ample time to grow after harvest, making them prime targets for herbicide. Why it matters: As harvest winds down, attention turns to field preparation for 2024.
On the ropes against kochia
Growers face a formidable foe. Fast mutations and efficient seed spread are a tough one-two combination
Kill it with fire. That was the gist in 2018, after a photo of post-spray kochia in Saskatchewan made the rounds on social media. The image showed a swath of dead, brown plants. That made the single, green plant right in the centre stand out even more. There was a collective recoil from farmers in
Strike early when fighting kochia in canola
Kochia has few means of control, so know the options
Glacier FarmMedia – Kochia is one of the fastest-spreading and most resistant weeds common in canola. The key is to control it before it sets seed, experts say, and that means striking when it’s small. Herbicide resistant kochia has been a management headache for growers across the Prairies. Pre-seed burnoff is the first tool in
Herbicide resistance can’t be ignored
A weed control strategy will encompass the entire production system
Herbicide resistant weeds have been present in Manitoba since the 1980s but they are now becoming a critical issue that cannot be ignored. Kim Brown-Livingston, Manitoba Agriculture’s weed specialist, called it the biggest problem facing producers. More resistance is cropping up and no new modes of action have been available on the Prairies in the
Students bring KAP resolution on kochia
Perennial forages can help stamp out weeds, but lost revenue needs to be offset, ag students say
A group of agriculture students say farmers should be incentivized to combat herbicide-resistant kochia by growing perennial forages. The weed is spreading faster than ever in Manitoba, and something must be done “before we have to return to historic practices of hand-picking weeds,” University of Manitoba student Richard Davy told Keystone Agricultural Producers members on
Kochia control waning in North Dakota
Two popular products also widely used in Manitoba seem less effective
A North Dakota State University study showed that some kochia populations in western North Dakota likely have developed resistance to commonly used pre-plant burndown herbicides. For many years, no-till farmers have used Aim (carfentrazone) and Sharpen (saflufenacil) either just before or just after planting to control emerged kochia and other annual weeds. In Manitoba, carfentrazone is the active ingredient in Aim EC,
Former weed specialist back on the job
Battling weed resistance will be hard work, says Kim Brown-Livingston
Kim Brown-Livingston says she’s optimistic as she takes the role of provincial weed specialist. “We have a great future,” she said. “We’re going to continue on, and our farmers are doing a really good job of it now.” Brown-Livingston previously held the role of weed specialist from 1998 to 2013 before moving on to work
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