GFM Network News






Tillage can help warm the soil faster for earlier seeding, but it also gives weeds a better environment to germinate.

Tillage systems’ impact on weeds and disease

No-till and minimum-till systems both have agronomic drawbacks and advantages

No-till and minimum-till systems both have their advantages and drawbacks, especially when it comes to managing weeds, disease and insects in next season’s crop. Let’s start by looking at the advantages of no-till systems. Right off the bat, they’re great for soil and moisture conservation — particularly when you’re working on lighter, sandier soils. Growers […] Read more



The three trays on the left represent 10,000 canola seeds that were not put through the Harrington Seed Destructor before researchers grew them out. The two trays on the right show the low germination rate of 10,000 canola seeds after researchers ran them through the Seed Destructor.

Mechanical harvest weed control

The Harrington Seed Destructor is a chem-free way to chew up weed seeds at harvest time

Recent research into harvest weed seed control is yielding some promising results. Breanne Tidemann, Agriculture and Agri-Food Canada research scientist based in Lacombe, has been studying how effectively the Harrington Seed Destructor chews up weed seeds. Tidemann and her colleagues collected chaff from a bag attached to the back of a combine, then ran the […] Read more



To date, AAFC’s Dr. Hugh Beckie has not seen Palmer amaranth in the Prairies. However, he says, 
“if it did come up it would be through the floodwater in the Red River Valley.”

Palmer amaranth continues to spread north

Producers should learn to spot the tall, fast-growing 
weed before it becomes a problem

Amaranth is extremely nutrient-rich. It was important to the Aztecs, and is still cultivated in South America and Mexico. It germinates easily, grows rapidly and produces huge numbers of seed. But the crop that sustained the Aztec economy famously wreaked havoc on the American cotton industry, and is now affecting corn and soybean producers in […] Read more


Winning the war on pea problems

Weeds, disease and pests will all steal yield from less-competitive pea crops

Disease and pests pose a big risk for growers. A little planning can go a long way to limiting the damage. Peas are somewhat less competitive than some other crops like barley, canola or wheat because their canopy is open a bit longer, so weeds get a better start,” said Dr. Neil Harker, research scientist, […] Read more

Cleavers can be tricky because they are both a spring and winter annual.

Timing is key to whipping weeds

It’s easiest to kill weeds when they’re actively growing. Make sure you know when that is

Whether you’re telling a joke or treating a weed, timing is critical. And as anyone who has failed at weed control will confirm, it’s no laughing matter. Once you let weeds gain a foothold they can soon get out of hand, so it’s crucial to identify the life cycle of the weeds in your field […] Read more