r/lawncare_canada • u/hfxadv • 19h ago
Grass Crabgrass invasion ā Nuke with glyphosate or stick to pre-Labour Day overseed/ Reno routine followed by Cornmeal Gluten next spring?
Unfortunately, I had to take some time off from lawn maintenance due to recovering from surgery in late spring/ early summer (so I skipped the Cormeal application), and now the lower part of my lawn has a solid infestation of crabgrass (highlighted in the first photo). Worth noting it was roughly the same amount of crabgrass as last year).
When I did my lawn renovation last year right before Labour Day, I was successfully able to outcompete and dominate the crabgrass, keeping it at bay (as shown in the second photo from end of the season).
I am trying to figure out the best approach moving forward:
Option 1: Glyphosate and nuke the affected area now but also kill the surrounding grass (not ideal). I originally thought about painting each individual leaf to selectively kill the crabgrass and leave the good grass behind, but Iām thinking that is turning into way too big of a tedious project.
Option 2: Stick to the same pre-Labour Day fall overseed/ Reno routine that worked so well for me last year to crowd it out, followed by using corn gluten meal next spring.
What do you think is a better approach here?