Drive XLR8 Herbicide Crabgrass Killer - Questions & Answers

When using Drive XLR8 Herbicide Crabgrass Killer for crabgrass, it’s best to apply at either the very young stage or the most mature stage of the crabgrass.  When treating between the 2-4 tiller stage, repeat application may be required.  You should make your applications while temperatures are between 65 and 85 degrees for best results.  You can also use a pre-emergent like Dimension 2EW in the spring and the fall to help prevent it from coming up the following season.

We have an entire page on our site that contains crabgrass killing products that are selective, meaning they will kill crabgrass and other weeds, but not harm your grass.  Here is a link to the section:  http://www.domyownpestcontrol.com/post-emergents-c-188_478_494.html

The first product on the page, Drive XLR8, is our most popular.

Drive XLR8 Herbicide Crabgrass Killer is safe for pets to be around after the treated areas have dried. We would not recommend using this product where animals would be grazing.

The Drive XLR8 Herbicide Crabgrass Killer label states that grass should NOT be mowed two days before or two days after an application to maximize weed control and minimize potential turf grass injury.  

We apologize you are having difficulty eradicating the mature crabgrass with Drive XLR. Are you using a surfactant with your mixture? Are you using the highest application ratio you can for your turf? For the best crabgrass control, you want to apply a pre emergent in the spring. Please visit our pre emergent crabgrass control page.

Dimension 2EW is our most popular pre-emergent crabgrass herbicide and Drive XLR8 is our most popular post-emergent crab grass herbicide. You should contact your local cooperative extension office and speak to the master gardener on staff to see which product would be best at this time in your region.

It is best to give Drive XLR8 at least 24 hours of dry time after application.  The product label recommends that if it has not rained within 2-7 days after application, you would then irrigate with at least 1/2 inch of water. 

The first thing you need to know when using an herbicide such as Drive XLR8 Herbicide is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 1.45 oz per 1,000 sq ft . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 1.45 oz of product with for each 1,000 sq ft area that needs to be treated. You will need to make sure treated areas are irrigated with at least 1/2 inch of water (either by rainfall or by sprinkler) following the application.

If you were wanting to use the drive for crabgrass and other broad leaf post emergent weed control across the entire 8-10 acres as a broadcast spray, you would need roughly 4 half gallons of the product. The first thing you need to know when using an herbicide such as Drive XLR8 Herbicide is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 1.45 oz per 1,000 sq ft . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 1.45 oz of product with for each 1,000 sq ft area that needs to be treated. You will need to make sure treated areas are irrigated with at least 1/2 inch of water (either by rainfall or by sprinkler) following the application. 

Drive XLR8 is not recommended to be used in a hose end application. The first thing you need to know when using a herbicide such as Drive XLR8 is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and your risk damaging your lawn, use too little and you will not get adequate results. You will need to use 1.45 fl oz per 1000 sq ft. To decide how much water to use, you should mark a 1000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 1.45 fl oz of Drive XLR8 with for each 1000 sq ft that needs to be treated. You will need to make sure treated areas are irrigated with at least 1/2 inch of water (either rainfall or by sprinkler) following the application. 

Yes, Drive XLR8 Herbicide Crabgrass Killer can be used on bermudagrass safely. The rate is 1.45 fl oz per gallon of water. Be sure to use an MSO surfactant to increase the effectiveness of the product. The rate of the surfactant is 1-2 teaspoons per gallon of water.

Drive XLR8 Herbicide Crabgrass Killer has a three year shelf life from the date of purchase if stored in a cool, dry place away from extreme temperatures. Once mixed with water and surfactant it should be used within 24 hours of mixing.

Drive XLR8 Herbicide Crabgrass Killer should not be used on Centipede turf. 

You can apply Drive XLR8 to newly emerged grasses. Please refer to Table 4 on the product label for more information as the application will vary depending on the type of grass you have.

Yes, Drive XLR8 Herbicide Crabgrass Killer is labeled for use on fescue lawns.

Unfortunately their is not a selective product that will remove crabgrass from St. Augustine.  St. Augustine is a very fragile grass, and so most selective products that are labeled to remove crabgrass and not your real grass, will hurt the St. Augustine.  It is recommended to kill the crabgrass with a round up type product, like Ranger Pro, which will also kill just the St. Augustine around the crabgrass that it is sprayed on, and then a couple weeks later re-seed those areas with new St. Augustine. 

For long term control though, you should apply a pre-emergent in the late fall and early spring which will prevent new crabgrass from coming up next year.  If you apply pre-emergent every year, you should not have issues with crabgrass long term.  Dimension 2EW is one of our most popular pre-emergents for crabgrass.

The first thing you need to know when using an herbicide such as Drive XLR8 Herbicide is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 0.50 - 1.45 oz per 1,000 sq ft (please read the product label for the exact usage rate needed for your application) . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 0.50 - 1.45 oz of product with for each 1,000 sq ft area that needs to be treated. You will need to make sure treated areas are irrigated with at least 1/2 inch of water (either by rainfall or by sprinkler) following the application. Please contact your local cooperative extension office to determine the correct timing of the application as this will vary greatly from region to region.

Per the product label it is not recommend to use a dish detergent with Drive XLR8. When using Drive XLR8, it is recommended that you use a methylated seed oil to apply the product with. Our Dyneamic surfactant has methylated seed oil and is recommended to apply with Drive XLR8.

Drive XLR8 Herbicide Crabgrassiller is labeled to be safely applied to Zoysia if used as directed.

When using Drive XLR8 Herbicide Crabgrass Killer the active ingredient quinclorac has dissipation values that can range from 60 to over 500 days. Because quinclorac does not bind well to soil, some dissipation noted in field testing could be due to chemical testing. The persistence hazard of qunclorac is rated high (likely to take over 60 days to degrade to half of the applied concentration). We would recommend waiting an entire season before any grazing took place on the area that was treated for this reason.