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How To Kill Crabgrass

Crabgrass is considered one of the most common types of invasive weeds that grow on lawns. This annual weed is also known as finger-grass, and fonio and can be both annual and perennial. The distinguishing traits of crabgrass are slender stems which sprawl from a central root underground which resembles the pincers of a crab.  If you're been searching for a way how to kill crabgrass, you've come to the right place.We have the largest selection of crabgrass killer.

Crabgrass can spread quickly during the warm summer months and though they disappear in fall, a single weed can typically leave behind thousands of seeds that will be ready to grow and pester lawns the following spring. The best defense against crabgrass is a healthy vibrant lawn. Undesirable grasses and weeds simply won’t stand a chance to survive in a well-maintained and nutrient-rich stand of grass.

Solutions Pest and Lawn is your trusted advisor and provider for professional quality do-it-yourself lawn maintenance and weed control. Our exclusive lawn care and weed elimination products include premium grass seeds and professional-grade fertilizers. We also have highly-trained and industry-certified representatives that are ready to answer your call or email about any lawn, weed or pest control questions.

Browse our selection of crabgrass killers and crabgrass control products and if you ever need help selecting the best product for you, call us at (800) 479-6583 contact us at askapro@solutionsstores.comand we can point you in the right direction depending on your situation.


How To Kill Crabgrass: Solutions 4 Step Process

If your lawn has crabgrass, it can be difficult to remove them without the proper weed control equipment. Sometimes having a healthy and well-maintained lawn isn’t enough. Solutions Pest & Lawn can equip you with the necessary DIY advice as well as professional-grade herbicides so you can kill crabgrass right the fight time. Check out our simple-to-follow 4 step plan on how to kill crabgrass and follow it closely to get the best results on your lawn.

Step 1: Identification.
First, are you completely certain that the unwanted vegetation that is growing on your lawn is indeed crabgrass? It is important to properly ID the plant you want to be removed because herbicide selections depend upon what type of grass or weed you have growing. We have specific herbicides which target crabgrass and if it isn't crabgrass it may not do anything to remove the undesired plant.

Crabgrass can be identified via it's coarse textured yellowish-green grass blades that can stand out especially when found growing among fine textured, dark green or bright green turfgrasses. The stems are spreading and much branched. Roots develop at nodes on the prostrate stems.

The first leaf is only about twice as long as it is wide. It is tinged light purple and has a white strip running down the center. Both sides have silky, shiny hair. Leaves are 2/5- to 1/2-inch wide and 1/3- to 1-inch long. The leaf sheaths of large crabgrass seedlings are tinged purple and are hairy. The ligule is large membranous, and toothed. A ligule is a thin membrane or row of hairs at the top of the junction of the leaf sheath and the leaf blade. Auricles are the appendages projecting around the stem from both sides of the collar.

If you are unsure whether the plant is crabgrass or not, send a photo to us at identification@solutionsstores.com and we will properly ID the plant for you as well as give you the proper product recommendations and tips on how to kill crabgrass.


Step 2: Inspection. Crabgrass seeds start to germinate in the early spring and will begin to grow by the middle of spring. By summertime, crabgrass really starts to thrive and will begin popping up in large bunches and may even overtake your lawn. If you have a cool-season grass, the crabgrass will likely outgrow it and thats when you'll really start to see the difference.

Inspect your lawn around those times and focus in on the areas where there is full sun. Crabgrass doesn't grow in the shade, it is areas with full sunlight that crabgrass really grows at high rates so this is where you can focus your treatment.

Step 3: Control.
Once the crabgrass is identified you can go about chemical control. Depending on the timing, we would recommend using a pre-emergent to take care of crabgrass seeds before they grow. However, pre-emergent is to be laid out in the Fall or Early spring if you are known to have crabgrass issues on your property.

While it is best to take care of crabgrass in the beginning of spring with a pre-emergent to make sure the seeds don’t germinate, if your crabgrass is already growing and established on your lawn, your best option on how to kill crabgrass would be to use a post-emergent because a pre-emergent won’t do any good for crabgrass elimination. Solutions Pest & Lawn has a variety of crabgrass killing herbicides to choose from which you will find in our product section list below. We have non-selective herbicides which work really well with crabgrass and can eliminate them from your lawn quickly and effectively. Because of the weeds persistence, repeated application may be necessary about 6 weeks later to treat crabgrass.


Step 4: Prevention. Crabgrass is a difficult weed to get rid of but if you are successful in removing it, you don't want it to come back. Prevent crabgrass from growing with the help of a pre-emergent. This will kill the crabgrass before it grows above ground. Timing is key, however, if you want pre-emergent to make a difference.

Aside from this, your best defense is a thick, nutrient rich turf that will choke out crabgrass and block seeds from receiving sunlight. Mow at a height grass height between 2 to 2.5 inches. Water less frequently but more deeply and fertilize properly and at the right times for your lawn.

Please visit our knowledge base for helpful guides and instructions on the application of our various weed killers and for more details on how to kill crabgrass. Once the weed has been neutralized or controlled the bare area should be replaced with a combination of suitable soil and turf seed to aid recovery.


Learn More About Crabgrass

Crabgrass--the bane of every landscapers existence. Crabgrass is well known by most lawn owners but surprisingly most people don't really know it at all. Many gardeners, homeowners, and lawn-lovers tend to classify any undesirable grassy weed as “crabgrass”—lumping all weeds together under this blanket name.

The fact is true crabgrass is an annual plant that produces a large number of seeds and, once they have established themselves in your lawn (especially if you haven't done a good job of keeping it healthy) crabgrass can re-seed itself year after year—in effect, producing an ongoing crop of ugly unwanted grass that competes with your desirable lawn grasses. 

Crabgrass is named as such due to the way the grass blades emerge and spread out on the ground—very similar in appearance to the legs of a crab on the beach at the seashore. 

The most commonly found forms of the grassy weed (especially in the United States) are hairy crabgrass and smooth crabgrass, which made apparent by their variations, is differentiated via the texture of the wide flat-growing leaves of the plant. 

Each batch of crabgrass can spread outward reaching a size of 12 inches or more in diameter. In lawns that have a thin stand of desirable grasses in unfertile soil, the clumps of crabgrass can virtually take over. 

The best way available to control and eliminate crabgrass—establish a healthy lawn that will choke out the invading crabgrass! 

If your lawn is properly fertilized, adequately seeded, and watered sufficiently, the thick and healthy stand of desirable lawn grasses will make it virtually impossible for the crabgrass to invade and establish. 

If crabgrass seeds are present in your thin stand of lawn grass, the warm weather of late spring and early summer will lead to germination of the crabgrass seeds. 

The plants will grow throughout the heat of summer (sometimes it seems like the hotter the summer, the more crabgrass there will be!) and produce another crop of seeds that will germinate the following year—thus continuing the cycle. 

If you’ve had problems with crabgrass in the past and you’re now trying to smother it out by establishing a healthy lawn, you might want to add a pre-emergent to your lawn early in the year to prevent germination of the existing crabgrass seeds. 

If crabgrass plants still do emerge in your lawn, you can eliminate these with the help of effective professional quality crabgrass killer applied either with your tank sprayer or via a hose-end sprayer. Browse or recommended products to see what would work best for your lawn and your budget.

To keep crabgrass from making a comeback, maintain a healthy and well-kept lawn by establishing a good routine for your lawn.


crabgrass inspectionInspecting For Crabgrass

Crabgrass grows in light-green to bluish-colored clumps which germinate in the early springtime, often right along with other flowering plants such as forsythia, redbuds and pears. One crabgrass plant has the ability of producing 150 thousand seeds annually, and seeds can remain active for at least 3 years in soil.

Crabgrass requires a lot of light for the plant to grow, thus, healthy, thick turf often discourages its invasion. Crabgrass generally germinates in early spring when soil temperatures at 4-inch depth are 53-55°F for 3 consecutive days, and grows until a killing frost occurs. In areas without frost, it can act as a short-term perennial. Seedheads form a digitate shape where the branches arise from a common point, resembling the upward extending fingers of a hand.

Herbicide resistance has been reported with certain types of herbicides such as fenoxaprop-ethyl, but only in isolated instances. Rotating between herbicides with different modes-of-action is your best bet when it comes to preventing, or at least hindering the chances of resistance.

Using Pre-Emergents For Crabgrass

You need to get the pre-emergents for crabgrass out before soil temperatures reach 55 degrees and stay there for 24 to 48 hours. There's a lot of myths about crabgrass germination which we'd like to clear up. For instance, customers tell us all the time things like "Forsynthia's have already bloomed, there's no reason to put out pre-emergents for crabgrass." This is not necessarily true. Priscilla is a great indicator as to when crabgrass is germinating but it's all about the soil temperature.


There's many factors that make forsythia start blooming early. Checking the soil temperature is very important. If it's still below 55 degrees, you still have time. Other customers tell us crabgrass has already germinated, it's not worth putting out any pre-emergents. That's not true either. Maybe in a couple of parts of your yard you have seen crabgrass emerge, but if you could control eighty percent of crabgrass, it's worth doing.


It is way more economical to lay out pre-emergents to tackle crabgrass before it starts than to deal with it when it has emerged from your lawn.

Post-emergent Crabgrass Control

For post-emergent control, Tribute Total can be used in bermudagrass and zoysiagrass. Typically, best results occur on smaller plants. Other post-emergent herbicides in bermudagrass and zoysiagrass golf turf include quinclorac and MSMA; while in seashore paspalum, quinclorac is used for post-emergent crabgrass control. In sites with traditionally heavy populations, both pre- and post-emergent products are typically required for sufficient control

Additional Crabgrass Resources

Fight Crabgrass with These Tips | HGTV


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