Select Source Quinclorac 75 Herbicide - 1 Pound (Drive 75, Quinstar) by

I purchased this ,quite some time ago. I can gladly state the this has worked like a charm,and no Its not a miracles all mighty weed exterminator, but it does its work perfectly killing most of them, like the helliuos Crabgrass,and this without hurting my Bermuda Grass, a full spoon per gallon of water has being more than enough ,well so far . For ( yerba de bruja ) the pain in they arch tall weed grass that I call( Witch Grass ), combine this with Glysophite ? or RoundUP. Caution spray on not windy days ,If a bit breezy use with wind blowing at your back use gloves and face sheild.

I've been battling crab grass unsuccessfully for years. I've always known quinclorac is what you use to treat it, but didn't know the big box store herbicides don't contain enough of it to work until YouTube's Lawn Care Nut advised as such. So I bought this stuff. And it works. Fast. My crab grass was dying or dead within 3 days of application. Make sure you use a surfactant with it, or you won't get good results. The manufacturer recommends Methylated Seed Oil, but I used a non-MSO one and had great results. The cons to this product are minor gripes. It's expensive compared to its big box store counterparts, but it is cheaper than competing name brand pro level quinclorac products while being just as effective. So don't balk at the price compared to something like Weed-B-Gon. This is a pro-level product that is far more powerful, so this it what that strength costs. Based on how much I use, this one bottle will last years, so it's actually a pretty decent deal. The other con is that being geared towards pros, the directions are indecipherable to us lay folks. Something as simple as how much to use with a residential 1-4 gallon sprayer can't be easily determined. I'm grateful to other reviewers here on Amazon for figuring that out. Bottom line: use one tablespoon of product per gallon of water. Don't use in heat 90 degrees F of higher (I personally try to avoid spraying over 80F). And observe the recommended wait time between sprayings should you need a second application (I didn't).

I applied this product with a 4 gallon back pack sprayer by adding .200 lbs to 2 gallons in the backpack sprayer followed by agitation and filling to a final volume of 4 gallons (1.5 times recommended concentration in label). My grass type is Hancock unhulled uncoated common Bermuda that was 5 days post germination at the time of application. It did not harm the grass at all as far as I can tell. At this concentration it took approximately 5 days to fully kill my large hairy crab grass. It dose not appear to have had any appreciable effect on my chamber bitters but I also did not add any additives such as MSO or other surfactants which would enhance its efficacy. The only reason I didn’t give it five stars is because the recommend label concentrations are too conservative in my opinion and a little difficult to convert due to the units. Otherwise this product has been great and seems to be safe and effective to use on Bermuda seed pre and post germination in the yard.

Had Saint Augustine invading my tall fescue marathon sod (southern California location) and I knew if I didn’t address this issue it would eventually just take over, especially in the summer because that’s when St. Aug grows the most. After researching online, I purchased this product, used an electric backpack sprayer and I must say it definitely took out the Saint Augustine which is now turning brown. Best part is it didn’t harm to rescue you at all. I highly recommend.

This is a good herbicide for crabgrass, clover and broadleaf weeds.

Perfectly described and shipped fast. This stuff is amazing. Make sure you follow the instructions. I would hate to think of someone mixing a little more like you have to with so many other products because that would be bad day.

I had used this product about 1 month ago and it seemed to work very well at controlling about 75% of the crabgrass in my lawn. Three weeks later I did a second application and that didn't seem to work very well. I even used the methalated seed oil that was recommended. The second application probably only killed about 10% of the remaining crabgrass.

This stuff WORKS! My Girlfriends lawn was in really bad shape from previous owners. This October will be one year since she moved in and it's been a year in the making getting this yard back into shape! She had a major ant and grub issue. I got the grub issue under control pretty quickly but the ant problem was tough. I used Talstar Pro for ants. Took numerous applications, but the ants are gone! The yard looked beautiful EXCEPT for the crabgrass that completely took over! I tried the Ortho Crabgrass Control, and it did work, it just didn't provide the punch I needed to kill this stuff! I will give Ortho credit where it's due....it did work FAST! Within 24 hours, crabgrass was turning brown. If there wasn't so much of it, Ortho might hav been enough. After researching crabgrass control, I almost bought the Drive product....but it was a bit too pricy. I came across Quinclorac 75 and figured I'd give it a shot. This stuff WORKS!!! It doesn't work FAST, but every single piece of crab grass I sprayed it on turned brown after a week in a half! Fast forward 3 weeks, still killing the crabgrass, not a live piece anywhere....and the good grass is unharmed!! :) I love this stuff! This stuff WORKS, just be patient! On a final note, I have a 2 Gallon sprayer, I mixed it 1.5 tsp per gallon of water. This is a granular product that mixes with water. I also didn't use any surfactant...only product and water.