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Identification is first step when keeping out new weeds

RIDGETOWN, Ont. — Producers are encouraged to hone up on their weed identification skills, and with good reason. “If you misidentify something, you may not be able to control it, and some of the weeds are a huge problem outside of the Ontario because of herbicide resistance,” Dave Bilyea, a research technician at the University[...]

U.S. farmers fighting explosion of 'superweeds'

(Reuters) — Farmers in important crop-growing states should consider the environmentally unfriendly practice of deeply tilling fields to fight a growing problem with invasive "superweeds" that resist herbicides and choke crop yields, agricultural experts said this week. Resistance to glyphosate, the main ingredient in widely used Roundup herbicide, has reached the point that row crop[...]

Weed of the Week: dock

Whether they call it curly dock, narrow-leaved dock, sour dock or yellow dock, for farmers it is usually a sign of water, a sprayer miss, or both. Standing above most crops, dock is a perennial with the ability to produce high numbers of seeds. Its single, sometimes forked, large taproot has allowed it to flourish[...]

Weed of the Week: green foxtail

Call it what you will — bottle grass, green bristlegrass, green millet, pigeon grass, wild millet or, as it best known in Western Canada, green foxtail — the weed is becoming a growing problem for prairie farmers. Less tillage has had many positive effects on agriculture, but it has also resulted in more weeds. One[...]

Customers praise CIGI on wheat gluten research

The nation’s grain industry has made huge progress and responded effectively to concerns regarding the gluten strength of Canadian wheat, said Earl Geddes, Canadian International Grains Institute chief executive officer. COFCO, China’s state-owned agricultural trading company, complained about the inconsistency and baking properties of Canadian wheat in the spring of 2013. Geddes said Canada’s wheat[...]

Weed of the Week: round-leaved mallow

A look through provincial and U.S. state crop protection guides can yield many things. However, when searching for control methods for round-leaved mallow, the suggestions are fewer than for many broad-leaved weeds. Round-leaved mallow is generally an annual weed, but if allowed to grow for more than a few weeks, it can seem as though[...]

Weeds won’t wait for farmers

Producers generally wait to spray weeds — often too long.
If a herbicide is able to be used until the flag leaf of a cereal crop and the sixth leaf stage of a weed, producers tend to wait that long to control the most recently germinated weeds.
After all, who wants to spray more than once in[...]

Herbicide-resistant weeds heading north

Expect an explosion of glyphosate-resistant weeds in North Dakota this year, says a leading weed specialist.
Herbicide-resistant weeds are becoming more common in the northern United States and are also spreading northwest toward southern Manitoba.
But this year’s seeding problems in North Dakota and Minnesota mean that farmers in those states may not do what they know[...]

Coming your way Manitoba: A Weedy Nightmare - if you don't do the right thing

What are farmers going to do when glyphosate and multiple herbicide resistant weeds begin appearing around Manitoba? That's a question that's going to likely be answered in the next couple of years, because the plague of glyphosate tolerant weeds that has sickened fields across the U.S. South and Midwest has shambled like a zombie horde[...]

Don’t be in hurry to seed if frost occurs after spraying burnoff

“It froze last night. How long do I have to wait to spray my burnoff?”
The answer? “It depends.”
It depends on the weeds that are being targeted, the size and stage of the weed, the rate of glyphosate being used and the additional products that may be added to the glyphosate.
The first thing to do is[...]

Pesticide research cuts ignore human health issues: biologist

Reduced funding for research on the effects of pesticides could be compromising human health, says the Canada research chair in ecotoxicology.
Alice Hontela, a biology professor at the University of Lethbridge who studies pesticide effects on the environment, said she is concerned that research funding tends to focus more on technology and economics than on the[...]

Weed of the Week: wild buckwheat

Of the Top 10 weeds on the Prairies, wild buckwheat is considered No. 3 on Agriculture Canada’s farmer surveys. In Alberta, it’s No. 1. Buyers will refuse crops such as canaryseed if the weed’s distinct, triangular seeds are found in shipments. Buckwheat can be tough to kill, even at spring burnoff, provided it gets a[...]

Angry mothers meet U.S. EPA over concerns with Roundup herbicide

(Reuters) — Questions about Roundup, the world's most popular herbicide, are on the agenda at the U.S. Environmental Protection Agency Tuesday when regulators meet with a group of mothers, scientists, environmentalists and others who say they are worried about Roundup residues found in breast milk. The meeting near Washington D.C., follows a five-day phone call[...]

Post-emergent herbicides more important in a late year

We have just come through a cold and windy stretch of weather that has not only resulted in slow weed emergence but also a significant reduction in the amount of pre-burn herbicides that have been applied.
Farmers either opted to skip the burn-down entirely or were shut out by the weather once they decided to go[...]

Weed of the Week: shepherd's purse

Reducing tillage has increased cash flow, boosted bottom lines and improved soil health. One of the downsides has been minor weeds becoming major problems. Some fall annual weeds have thrived where steel now fails to find them. Worse, pests like shepherd’s purse have managed to escape some of the handiest herbicides, such as Group 2[...]