GFM Network News



Constellation tightens grip on Canopy with CEO appointment

Reuters — Constellation Brands finance head David Klein will take over in January as CEO of pot producer Canopy Growth Corp., hardening up the Corona beer maker’s control of a company into which it has sunk US$4 billion. Klein was appointed Canopy chairman in October after Constellation booked a $430 million net loss related to […] Read more


Pot producer Canopy Growth to stop expanding in Canada

Reuters — Canopy Growth Corp. on Thursday reported a wider-than-expected quarterly loss on soaring expenses and said it would not make any large investments to expand in Canada amid surplus supply and tepid demand for weed and weed products. The decision to hold expansion plans follows a wave of enthusiastic spending by marijuana companies to […] Read more

North Dakota still on lookout for Palmer amaranth

CNS Canada –– Officials in North Dakota continue to hunt down suspicious plants in a bid to keep the aggressive weed Palmer amaranth from establishing there. Palmer amaranth, a pigweed species, made its first confirmed appearance in North Dakota last month, in a soybean field in McIntosh County, in the south-central area of the state. […] Read more



Understanding how plants search out nutrients, and react to weeds and pests could have a huge impact on farming in the coming decades, says biologist JC Cahill.

Listen to your crops — the plants are talking to each other

They’re also ‘foraging’ for nutrients, deciding where to put their roots, and calling for help when under attack

You might think it’s crazy — but plants talk to each other and act in ways that are similar to animals and humans. “Step away from the idea of plants as factories and start to think of plants as individuals,” biological sciences professor JC Cahill told attendees at the Western Canadian Soil Health and Grazing […] Read more


Perennial sow-thistle.

Perennial sow thistle costs farmers across Alberta

Noxious Weeds: Perennial sow thistle causes yield loss and acts as a host for pests

Often found in high densities across Alberta, perennial sow thistle seems to be a noxious weed that doesn’t quit. Not only does this pest cause significant yield loss in many crops, but it’s a host for several plant pests that attack economically important crops such as alfalfa, winter wheat and canola — just to name […] Read more



Assessing the threat from a weed starts with identifying it. For example, whitlow grass (left) isn’t a big threat, but scentless chamomile (right) is, says provincial crop specialist Harry Brook. photos: wiki commons

Know your enemy and its destructive potential, says provincial crop specialist

There’s a critical window for controlling weeds, but it depends on both the crop 
and the threat posed by individual species

All crops have a critical weed control period when they are most susceptible to significant yield loss from weed competition. The critical weed control period for canola is around 17 to 38 days after emergence. Peas can be as early as two weeks after emergence. “Other, more competitive crops, like the cereals, have a less […] Read more

Seed from Canada thistle can germinate eight to 10 days after flowering, but roots — not seeds — are the main way that this noxious weed spreads.

This quick-spreading weed gets an early start

Noxious weeds: Canada thistle

Spring brings lovely native flowers, but also noxious weeds. The aggressive perennial Canada thistle is a favourite of disturbed soils of all types. It starts sending shoots from horizontal roots to the surface of soil around mid-April, with flowers to follow in mid-June and continuing throughout the summer. Easy to distinguish from other weeds, this […] Read more