GFM Network News


The Harrington Seed 
Destructor has come a long way since it was first developed in 2012.
 Originally a tow-behind unit that 
attached to the back of the combine, the new weed seed management tool is now a mill that can be integrated with the combine ― at half the price.

Is the weed seed ‘destructor’ ready for prime time in Canada?

Aussie invention is much cheaper, easier to use, but is still in the ‘promising, not proven’ category

In the battle against herbicide-resistant weeds, the Harrington Seed Destructor might just win us the war — if farmers can justify the $100,000 price tag. “If herbicides are still working, it can be hard to convince producers to spend that kind of money to purchase this kind of equipment,” said federal research scientist Breanne Tidemann.

“We’ve actually sent people out into fields with cameras in Saskatchewan and Alberta and Manitoba to actually capture the weeds and crops that are growing right here.” – Daniel McCann, Precision.ai.

Smart spot spraying still has a way to go

Farmers need to be 100 per cent confident these new technologies will work when they hit the field

Like any developing technology, spot-spraying systems are far from perfect. In a Manitoba demonstration this July, attendees noted that the WEEDit system missed some smaller weeds during a single pass. That could be addresses by adjusting sensor sensitivity or by turning on “dual mode,” which sprays a constant quarter-rate to take care of less hardy


Tammy Jones speaking to attendees during a Crop Diagnostic School session in 2019.

VIDEO: Deciding when to spray to wipe out weeds

Know your economic threshold before firing up the sprayer

Deciding when to spray is key to limiting the spread of weeds and capturing the best yield your crop can offer. As with nearly every aspect of crop production, weather plays a key role and the amount of precipitation in a growing season  – and the timing of your herbicide application – will go a

Manitoba Agriculture has recently confirmed more cases of Tall waterhemp in the province. It’s a tier-one noxious weed that must be destroyed no matter where it’s found.

New cases of Tall waterhemp found in Manitoba

This is a Tier 1 noxious weed that Manitoba Agriculture wants to prevent from spreading

Tall Waterhemp has been confirmed in four new Manitoba fields and there are rumours of more, Manitoba Agriculture weed specialist Tammy Jones said in an interview Aug. 2. Tall Waterhemp is a Tier one noxious weed that must be destroyed no matter where it’s found, but that can include hand weeding within crops where practical,

Farmers who maybe weren't too initially concerned about weed pressure will need to keep a close eye on fields.

A messy year for weeds

Farmers didn’t see many weeds early this year, but agronomists warned that the flush was coming

Manitoba’s spring weather may have set weeds back, but the spray season hasn’t been a picnic for farmers either. Provincial weed specialist Tammy Jones warns that producers might be in for a tough weed control season, despite cool temperatures and dry conditions keeping weeds from gaining ground early this year. Why it matters: Clean fields this spring may have


Kochia's fuzzy leaves makes treating it with a herbicide more of a challenge.

Dry year adds to spray considerations

Manitoba’s weather lately means weeds have toughened up and herbicides may have an uphill battle if weeds aren’t growing vigorously

This year has brought its own quirks to weed control. Kochia is out in force again this year, provincial weed specialist Tammy Jones said. The plants’ fuzzy leaves create their own challenges for herbicide contact, even if the kochia is not showing glyphosate resistance. Glyphosate-resistant kochia has become a significant headache and cause for worry

Manitoba Agriculture's Lionel Kaskiw says cold temperatures are hindering weed growth, but also rendering crop protection products less effective.

Cool weather casts questions on weed burn off

Weeds haven’t exactly flourished in the cold this spring, but the province warns that they are germinating, and the cold itself lends challenges to spraying them out

That spring burn off may not be doing what it’s supposed to if temperatures stay low. Lionel Kaskiw, farm production advisor with the province, is reminding farmers to watch their thermometers when deciding if and when to do a pre-emergent herbicide pass. Why it matters: A cold spring has stunted weed growth, but it also

Kochia seedlings.

Weeds develop defences

Kochia gets hairy and lamb’s quarters get waxy under harsh conditions

Kochia was emerging in Manitoba fields last week and most of it is presumed resistant to Group 2 herbicides, says Manitoba Agriculture weed specialist Tammy Jones. Many could also be glyphosate tolerant, but it’s hard to know to what extent, she said in an interview April 24. “I know that it is distributed fairly thoroughly


Ken Heaman of Agassiz Seed Farm was seeding wheat April 24 north of Roland.

Seeding started – and put on pause by snow

Although moisture is rated as adequate in most areas, a little extra won’t hurt

Bob Bartley started seeding hard red spring wheat April 23, and finished the following day after completing two quarters. Now, following a late-spring storm through much of agro-Manitoba, he’s awaiting Mother Nature and the calendar. “Now I’m going to take a holiday,” he said with a laugh April 25 during an interview. “Now that we

Kochia or tumbleweeds can spread across fields by the tumbling action and get caught in fencelines. This is an example of landscape-scale weed spread issues.

It takes a village to stop weeds

Researchers say the community nature of the problem of invasive weeds hasn’t been adequately incorporated into control efforts

Invasive weeds are a problem that defies solution, and only seems to get worse. That’s because they’re a community problem that cross property boundaries, according to weed scientist Muthu Bagavathiannan, of Texas A&M. Finding a real solution will involve recognizing the nature of weeds as a community problem, and managing them accordingly, he and other