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Tag Archives weed control

Figure 1: Unsprayed control.
Crops

Controlling scentless chamomile with herbicides

#PestPatrol with Mike Cowbrough, OMAFRA

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Reading Time: 3 minutes Several herbicide treatments were evaluated in a 2019 on-farm research trial to determine best management options for scentless chamomile, a weed with a reputation for being difficult to control. Although 10 treatments provided greater than 80 per cent visual control of emerged plants, new seedlings continued to emerge several weeks after application, resulting in a […] Read more
Developed in conjunction with Bosch, the Xarvio Smart Sprayer determines when and what chemical to spray, which requires multiple nozzles or multiple lines to a single nozzle.
Machinery, Machinery Guide

Smart sprayer knows which herbicide to apply, and when

BASF’s Xarvio advances application technology

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Reading Time: 3 minutes It’s clear that public sentiment about perceived food safety and the environment is beginning to have a significant impact on consumer choices. An easy case in point is the marketing of meatless burgers at fast food chains as a way to save the planet from climate change. In crop production, meanwhile, the use of herbicides […] Read more
AAFC tests have been on a pull-type Harrington Seed Destructor, but a newer version is integrated with the combine.
Crops, Machinery

Weed control from the back of the combine

Prairie manufacturers are offering chaff collectors, and AAFC continues tests with the Harrington Seed Destructor

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Reading Time: 4 minutes Mechanical weed control hasn’t been widely adopted in Western Canada but it soon will be, says Trevor Thiessen of Redekop Manufacturing in Saskatoon. “We don’t have the same stress on the resistance issue that other parts of the world are seeing. In Canada, we’re five years behind Australia in terms of thinking about mechanical weed […] Read more
Figure 1: Purple deadnettle in a wheat field — October 2018 at a yield-reducing population density of around 500 plants per square metre.
Crops, Winter Wheat

PHOTOS: Pest Patrol: Purple deadnettle and henbit control in winter wheat

#PestPatrol with Mike Cowbrough, OMAFRA

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Reading Time: 3 minutes Q: I’m seeing more henbit and/or purple deadnettle in my winter wheat crop. Should it be controlled, and how? A: Henbit and purple deadnettle are often discussed interchangeably because they look similar, are from the same genus (Lamium) and have similar emergence patterns (mainly in the fall, but henbit will also emerge in spring). Both […] Read more
Although it has yet to be confirmed in Ontario, Palmer amaranth is capable of rapid spread and should be treated as glyphosate resistant.
Crops

Recognize the threat of these invasive weeds

How big a problem can waterhemp and Palmer amaranth really be? Let’s not find out

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Reading Time: 7 minutes Has everyone been crying wolf about waterhemp? After all, haven’t we been hearing warnings in southern Ontario about the weed for the past 15 years, and who has lost a bushel? Well, it was actually 17 years ago — 2002 — when the species was first confirmed in Lambton County, and the good news is […] Read more
Farmers’ friends: bugs, birds and worms can eat weed seeds before they get a chance to germinate.
Crops

Weed control with small critters

Insects, birds and worms are a free – and resistance-free – method of controlling weeds before they get a chance to germinate

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Reading Time: 4 minutes The dominance of zero- or minimum-tillage practices on the Prairies means lots of weed seeds are left on the soil after harvest, but it turns out that there’s help available to stop them from germinating next spring, and you don’t have to buy it at your local chemical dealer. “Lowering the deposits into the weed […] Read more
Drought stress symptoms in corn leaves where no soil-applied herbicides had been applied and weed control was done with a late post-emergence application.
Crops

Pest Patrol: Don’t be cheap with weed control

#PestPatrol with Mike Cowbrough, OMAFRA

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Reading Time: 3 minutes “Weed control is an investment into the current and future crops on every field.” The above quote was parting advice from Norfolk and Oxford County farmer Ann Vermeersch at the 2019 FarmSmart Conference in Guelph. In front of 80 farmers and agronomists, I moderated a session with Vermeersch and Steph Kowalski, a certified crop advisor […] Read more
Canada fleabane.
Crops

New in herbicides for 2019

The latest products on the market reflect a changing mindset in weed control

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Reading Time: 3 minutes As winter gives way to spring, growers prepare for another season of weed management challenges. To help, here are new products for 2019, plus some released too late last spring for full distribution. Bayer Infinity FX Newly registered for 2019, Infinity FX is a combination of Infinity (bromoxynil + pyrasulfotole) and fluroxypyr, providing three active […] Read more
Some plants along the rail line are glyphosate resistant.
Crops

Pest Patrol: Sanitation of weed seed

#PestPatrol with Mike Cowbrough, OMAFRA

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Reading Time: 3 minutes Q: Can we stop the spread of weed seeds? A: “I’ve been thinking a lot about sterility lately.” I knew as soon as the words came out of my mouth that I had slipped up. I was responding to a question in the audience at a local crop conference about ways to stop the movement […] Read more
Figure 1: This unsprayed control treatment consists mainly of common ragweed but with green foxtail, common lamb’s-quarters, witchgrass, crabgrass and red-root and green pigweed.
Crops

Pest Patrol: Weed control in identity-preserved, non-GMO soybeans

#PestPatrol with Mike Cowbrough, OMAFRA

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Reading Time: 2 minutes A decade of public research trials evaluating weed control in non-GMO soybeans at the University of Guelph has demonstrated that the key to success is to start with a soil-applied herbicide program that has three or more different modes of action. In Ontario, there are a number of common weeds (e.g. common ragweed, lamb’s-quarters, foxtail […] Read more

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