Ortho Grass-B-Gon Weed & Grass Killer-GRASS-B-GON GRASS KILLER

Product Information

It worked great as a selective weed killer because it did not kill my turfgrass. Dandelions and clovers died within a few hours. I started seeing crabgrass yellowing and drooping the following day, and it seems it worked just fine. Roundup also provides a weed-killing guarantee, so if you do have issues with the quality, you can return it. Being a highly-rated postemergent herbicide for killing crabgrass, I went ahead and tested it on a St. Augustine grass lawn. Sure, it is sold in a ready-to spray bottle, making it easy to spot-treat areas with extensive weeds. The manufacturer claims this product is rain-safe up to 24 hours after application. We also like that the product comes with a pair of nitrile rubber gloves—a nice extra.

lawn treatments: lawn feeds, weed and moss killers Best lawn treatments: lawn feeds, weed and moss killers

Selective weed killers are based on chemicals, such as broadleaf weeds, that target specific plant species. With specific weed killers, you should be able to spray lawn weeds easily without any disruption to the grass. Carefully read the manufacturer’s directions. Some types of turf may be resistant to certain chemicals used in the selective mix; each type is affected and should be explicitly marked on the bottle of weed killers. Stop spraying selective herbicides around grass seedlings which are failing. Any grass crop that is not completely developed in the soil then it is susceptible to weed killers. Apply this product, which can be used as a pre-emergent, as well as a post-emergent herbicide, during the dormant or active growing season, with the best results seen in spring. Applying twice a year should be enough to keep your lawn crabgrass-free all season long. The manufacturer says that one container should cover up to just over 3,000 square feet, larger than a tennis court. Crabgrass, dandelion, dollar weed, foxtail, signal grass, clover, kikuyugrass, torpedo grass, speedwell, and bindweed. If you’re using it on other turfgrasses that aren’t indicated as tolerant, you might want to use a spot treatment to get rid of the grassy weeds in your lawn.For other types of invasive weeds, such as crabgrass, you'll need to be both aggressive and proactive to keep them from taking over your lawn. In these cases, you'll want to use a weed preventer. The issue is that the concentrated version seeks out the root system, rather than just killing the plant on the surface. You can still see results in a few days. For those with busy schedules, this one-and-done product is designed to keep crabgrass out of your life all season long. Since it is a pre-emergent product, it doesn’t kill existing crabgrass or prevent lingering crabgrass seeds from germinating. It might take more than one application each season, and even additional seasons to get on top of your crabgrass problem. It is a potent formulation that selectively kills crabgrass and many other grassy and broadleaf weeds in lawns without harming grass.

8 best weed killers 2023, tested for lawns and garden grass

The active ingredients that make it so potent at killing crabgrass include MCPA, dimethylamine salt, quinclorac, and Dicamba. These ingredients are indicated for killing over 200 different types of weeds in lawns and yards. This preventative, which you can apply with a spreader in spring or fall (up to November, and in temperatures under 85 degrees Fahrenheit, according to the manufacturer), keeps weeds at bay for up to four months and continues to control emergent weeds before they mature. That means less time for you to wrestle with when to apply it. The manufacturer says that for heavily invaded areas, you can add a second application of Preen eight weeks later. The 15-pound bag covers up to 5,000 square feet, a little larger than a regulation-size basketball court. Post-seeding herbicides can not be used before new seedlings are created. Mowing and spot treatments may be applied to manage weeds before the field planted expands vigorously and needs irrigation. The setting times differ based on the sort of seed you are using and the environmental conditions. ConclusionOther great crabgrass killers for lawns include MSMA herbicide and Greenlight Wipe-Out Crabgrass Killer. It is better to install landscape fabric under the garden stones if you want to skip weeds in walkways; Being one of the best crabgrass killers, it works as a systemic herbicide, killing crabgrass to the root. It will also act on other turfgrass weeds such as foxtail, barnyard grass and many other listed weeds. Active ingredient Usually, crabgrass killers are sold as liquids or granular formulas. Granules are great for larger yards because you can easily apply them with a push spreader for even application. You can store leftover product until later. You can find pre-emergent and post-emergent crabgrass killers in granular form.