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.
Normally we suggest giving the product 3 weeks to see results using Drive XLR8 or any selective herbicide. Depending on if you are spot treating or broadcasting the solution determines the mix rate.
Spot Treatment: For a 2 gallon sparyer, Mix 6 tbsp + 3 tbsp of Adjuvent. Apply at the rate of 1 gallon per 1000 sq ft. (1 tablespoon = 0.5 fl oz (0.25 lb ae/A)
Broadcast Application: 1.45 fl ozs per 1000 sq ft / Methylated seed oil at 0.55 fl oz per 1000 sq ft (0.75 lb ae/A)
Drive XLR8 Herbicide Crabgrass Killer can be mixed at a rate of approx. 10 oz per 25 gallons water.
The product label states: "If soil moisture is not sufficient prior to Drive XLR8 application, irrigation may improve weed control. For best results, DO NOT water or irrigate for 24 hours after application. If rainfall does not occur in 2 to 7 days after application, irrigation of at least 1/2 inch is desirable."
As long as your turf is not under stress from drought, you would not need to water before application.