Best Time To Kill Crabgrass ~ What To Use And Why

This is a video all about the best time of year to kill crabgrass, and the best types of products available to most homeowners to kill crabgrass. I also demonstrate how to control crabgrass without chemicals in this video.
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[@prebaned]

I used to be pops remote control and crabgrass killer. Now I have two of my own crabgrass killers...

[@nstooge]

Here in Florida…with Florida friendly grass… I used 2.5 cups of Arm & Hammer powdered laundry soap per gallon of water. Spray it on the crab crass ( and Woods grass) and it kills the Crabgrass and Woods grass weeds. You can see both of the weeds turn dark almost immediately and it will be dead before you know it. It doesn’t really harm my lawn grass (St Augustine) and the mixture will work on some other weeds as well. I can only speak to my use of the mixture and have had great results. Woods grass is a real pain and can spread relatively fast if not caught in time. I have had to treat some pretty large ares in the past and the mixture just works. I got the idea from the University of Florida’s web site…however I believe their mixture was 2 cups of A&H per gallon and they did not mention anything about using it on woods grass. I bumped mixture up by 1/2 a cup. I wasn’t able to find a solution for the Woods grass and tried the mixture on the W-grass and found it works great. I posted my results on the UOF Agricultural blog and they indicated they would look into it. Haven’t heard anything back but I’ve been using the mixture for years now. Ultimately it’s a soap.

[@SoCalMisfit712]

I’ve seen others use straight baking soda. Not sure if the soap has some baking soda in it but great to know.

[@rcytb]

So much valuable knowledge; thank you for sharing.

[@TurfMechanic]

that's my job and I love doing it. Glad you found the video. :)

[@miscstuff7473]

Great content. Very informative. I am wondering if you have any advice for those of us in Canada where we are not allowed any of the harsh chemicals to kill crabgrass and other weeds. Other than pulling everything by hand, do you have any 'natural' products that can help a larger lawn with crabgrass and other broadleaf weeds? I've heard corn meal can work. Thoughts on this or other eco-friendly solutions? Thanks!

[@TurfMechanic]

I wish there was a better answer but corn gluten meal is the best/only natural way to prevent and it's extremely weak in the first place. Applying it would have to be done every few weeks through the Spring and because it's heavy in Nitrogen it would basically replace other types of fertilization you might be wanting to use. Even then you will still have a lot of breakthrough weeds. As for crabgrass specifically you really just need to do hand weeding at the exact easiest time of year, June for you guys in Canada is most likely best time of year. If you can take an hour on a Saturday and an hour on a Sunday for two consecutive weeks to hand pluck crabgrass in that 2-4 tiller size range when it's easy to find but also easy to pull then you'll never have any crabgrass plants getting to the seeding phase...meaning next year you'll have significantly less pressure and the corn gluten meal product might look like it's working even better. As for other broadleaf weeds, my go to is always FeHEDTA (iron). You can buy concentrates of it and mix it yourself to spray out or suppress many broadleaf weeds. It's not considered a chemical weed killer so you should be able to find some brands using FeHEDTA in your area.

[@briantayes2418]

Have they banned Killex where you live? I have had great luck with it when I do a repeat application in 5 to 7 days. I also use a surfactant and blue marker dye. It's amazing how many weeds you miss on the first pass. Hand pulling weeds using needle nose pliers works very well and each year it gets easier.

[@pittluke]

cat at 3:35 your welcome

[@briantayes2418]

I guess I'm lucky as I don't have a ton of crabgrass. I pull mine out like you do, but I use needle nose pliers, it only takes 5 seconds and it removes all the seeds that would have sprouted next year.

[@TurfMechanic]

Love that idea. I will probably go back in a couple weeks and pull the ones I missed. I'll definitely try the needle nose pliers at that time. Thanks for the suggestion 😃

[@ltpls1]

If you set your mower to the highest setting you will block out most weeds. “ “Mow high”

[@visionquest414]

hey, binging some of your videos today :).. I have a question regarding the planting of seed. How come some people tell you NOT to walk on it to ensure seed to soil contact? I did that, when planting yesterday, but now people are telling me I should have done that? Thanks

[@TurfMechanic]

I frequently "tamp" my seed into the soil with my feet. I always walk on my seed...but I walk very gingerly, I try my best to not drag my feet or move seed laterally across the ground. It's really easy to accidentally move seed that is just barely rooting down when you walk on it. So with that said it's just a matter of what people are talking about but don't actually say. Squish the seed into the soil with your foot, or a tamper, or a lawn roller but if/when you walk on it try not to move the seed around, especially as it's just starting to root. Hope that clarifies it at least a bit.

[@visionquest414]

@@TurfMechanic Thanks! :)

[@iilmac]

Hey Bud, link isn't posted at the end.

[@TurfMechanic]

I just posted it now, thanks for letting me know.

[@hometheatereman5755]

What kind of weed killer did you use that doesn't kill the grass?

[@mikeo8890]

Crabgrass grow fast.

[@TurfMechanic]

yep, each one of those plants get seriously big. They are so easy to pluck out of the ground when they are small like I showed in the video. I pulled the entire side yard after filming that video. Took me about 35 min. Piece of cake now but it would be a horrible job in August.

[@nicknova703]

You need to get a grandpa’s weeder

[@TurfMechanic]

I've got a flimsy one, I need grandpas actual weeder, those old tools were tanks. I had another commenter suggest I try using needle nose pliers. In a couple weeks when I see a bit more of the CG I'm going to try that and mentally compare that to the dinner fork method.

[@nicknova703]

@@TurfMechanic I just hate bending over, so I love my grandpas weeder, lots of dallis grass that sticks out like a sore thumb in Bermuda