I.P.M.-trained weed control with Par III and Trillion — Health Canada approved products that knock out dandelions, clover, and other broadleaf weeds without taking the grass with them.
Winnipeg lawns spend the season fighting the same shortlist of weeds — dandelions in May, clover by July, creeping charlie under shade trees, thistle and plantain in the back lane. D&J’s weed control program is built around two well-timed blanket applications, unlimited spot visits, and selective herbicides that target the weeds without killing the grass underneath them.
We use Par III and Trillion, both Health Canada approved selective broadleaf herbicides registered for residential lawn use. “Selective” is the word that matters: the spray kills broadleaf weeds and leaves grass blades alone, which is what makes blanket lawn applications possible in the first place. On a typical Winnipeg lawn that means real control over dandelion, white clover, black medic, plantain, chickweed, ground ivy (creeping charlie), thistle, and oxalis.
What it won’t touch is the grassy weeds — crabgrass, quackgrass, foxtail. Those behave like grass and need a different approach (mowing height, thicker turf, sometimes targeted spot work). If grassy weeds are your main complaint, mention it during the estimate so we can talk through what actually works.
D&J is I.P.M. (Integrated Pest Management) trained — the certification Manitoba requires of professional applicators. In practice that means we apply only when the weather, lawn condition, and weed pressure call for it, we don’t over-apply, and we follow the provincial label and re-entry rules to the letter. Pets and kids stay off the lawn until the spray has dried (a few hours, depending on weather), and after that the surface is safe for normal use. We’re also fully licensed in Manitoba, W.C.B. covered, and BBB A+ rated — the same credentials we’ve carried since the early years.
The two strongest blanket windows in Winnipeg are late May through mid-June and late August through mid-September. Spring catches dandelions when they’re actively growing and pushing flowers, and fall catches the perennial broadleaf weeds when they’re pulling sugars (and herbicide) down to the roots for winter. We avoid mid-summer blanket sprays during the hottest, driest stretches — the grass is already stressed, the weeds are partially dormant, and the spray is less effective. Between the two blankets, the seasonal package includes unlimited spot visits for the patches that pop back up.
Spray gets the weeds out. A thick lawn is what keeps them out. Heavy clay soil — which is most of Winnipeg — favours weeds with deep taproots like dandelion, because they punch through compaction where grass roots struggle. The long-term play on a weedy lawn is to pair weed control with fertilization and core aeration: kill the weeds, feed the grass, open the soil so roots can run, and the lawn closes the gaps the weeds left behind. That’s why our seasonal packages bundle weed control with fertilization rather than selling it as a one-off spray.
Both registered for residential lawn use in Manitoba and applied under I.P.M. protocols.
Selective broadleaf herbicides — both Health Canada approved and registered for residential lawn use in Manitoba. They control and suppress dandelions, clover, plantain, creeping charlie, thistle, and other broadleaf weeds while leaving the grass alone.
Weed control is bundled with fertilization — the combo most Winnipeg homeowners want anyway. Standalone weed control is also quoted on request.
With Weed Control
With Weed Control
*Prices based on up to 2,000 sq.ft. of lawn. GST extra.
Integrated Pest Management certified — the credential Manitoba requires of professional applicators.
Spring and fall blankets when broadleaf weeds are most vulnerable, not summer-stressed sprays that don’t take.
Health Canada approved products applied under provincial re-entry rules — safe for kids and pets once dry.
21+ years of Winnipeg lawns — BBB A+ rated, fully licensed in Manitoba, W.C.B. covered.
Real questions Winnipeg homeowners ask about weed control before signing up.
The two strongest application windows in Winnipeg are late May through mid-June and again in late August through mid-September. Spring weed control catches dandelions while they’re actively growing and pushing yellow flowers — that’s when the herbicide gets pulled down into the root, which is what actually kills the weed instead of just burning the leaves. The fall window is the most underrated one, because perennial broadleaf weeds (dandelion, plantain, clover) are pulling sugars down to the roots for winter, and any herbicide goes along for the ride. We avoid mid-summer blanket applications during the hottest, driest stretches — the lawn is already stressed, and the weeds are partially dormant, so the spray is less effective and harder on the grass.
Yes — both Par III and Trillion are Health Canada approved, low-risk selective herbicides registered specifically for residential lawn use, and they’re applied by I.P.M. (Integrated Pest Management) trained crews who follow the provincial application rules. The standard guidance is to keep pets and kids off the treated lawn until the spray has fully dried, which is usually a few hours depending on weather. After that the surface is safe for normal yard use. We follow the same I.P.M. protocols Manitoba requires of every licensed applicator — that’s the credential the province uses to make sure spray is being put down responsibly, not over-applied or used in the wrong conditions.
Yes — and Winnipeg’s clay-heavy soil is exactly the environment where blanket weed control earns its keep. Dandelions thrive in compacted clay because their deep taproots can punch through soil where grass roots struggle, so once they’re established they’re nearly impossible to dig out by hand. Par III and Trillion are systemic herbicides — they move through the leaf and down the taproot, which is what knocks out the whole plant rather than just clipping the top off. On heavily infested lawns we often pair the spring application with core aeration so water, air, and nutrients reach the grass roots and the lawn fills back in once the dandelions are gone. A thick lawn is the long-term answer to a weed problem; the spray buys you the window to grow it back.
Both our Standard and Ultimate seasonal packages include a minimum of 2 blanket weed control applications plus unlimited spot-spray return visits through the rest of the season. The two blankets cover the spring and fall application windows where weed control is most effective, and the unlimited spot visits handle anything that comes up between — a patch of dandelions that pops back, a corner of clover, the strip along the back fence that always has thistle. If a customer just wants weed control without the fertilizer, that’s a custom quote — call (204) 227-1322 and we’ll size it to your yard.
Par III and Trillion are selective broadleaf herbicides, which means they target weeds with broad leaves and leave grass blades alone. That covers most of what Winnipeg homeowners actually complain about: dandelion, white clover, black medic, plantain, chickweed, ground ivy (creeping charlie), thistle, and oxalis. What it won’t kill is grassy weeds — crabgrass, quackgrass, and foxtail behave like grass and aren’t affected by selective herbicides. Those are managed differently (mowing height, thicker turf, sometimes targeted spot work), so if your main problem is a grass-like weed, mention it during the estimate and we’ll talk through the right approach for your lawn.
Weed control works best alongside the other pieces of a healthy Winnipeg lawn.
Granular fertilizer applications across the season — the easiest way to thicken the lawn so weeds have nowhere to come back to.
Core aeration to break up Winnipeg’s clay-heavy compacted soil so grass roots run deep and crowd out broadleaf weeds.
Weekly residential mowing May through September. A consistent cut height is the simplest weed-prevention tool there is.
Soil top-dressing to level low spots, improve soil quality, and give thin patches a fresh chance to fill in.
Power raking and dethatching to pull out winter-dead matter and prep the lawn before the first weed control application.
Leaf removal, bed prep, and end-of-season tidy — the natural pairing for the fall weed control blanket.
Tell us your address and we’ll come quote a fixed seasonal price. Free, no-pressure estimates — we reply within one business day.
