Terri from Denver Co writes
Treating an area of 500 sq ft. Applied 1 gallon of mixed solution of 2 fl oz of Drive XLR8 with 1 fl oz of surfactant and used the entire gallon of mixture over the 500 sq ft area. It's been 4 days and only seeing some of the good grass turning brown and no effects on the crabgrass. How long should I wait to see results. Watered the grass yesterday, 3 days after the application.
Drive XLR8 can take up to 3 weeks to see full results on targeted weeds and a second appliation may be needed for more established weeds. Keep in mind, for best results, applications should be applied to listed weeds when they are young and actively growing and temperatures are between 65-85 degrees. For actively growing crabgrass, Drive XLR8 is mixed at 1.45 fl oz per 1000 sq ft along with adding 0.16 - 0.48 fl. oz Duo Stick per gallon of water. If only treating 500 sq ft, you would cut those rates in half, mixing Drive XLR8 at 0.72 fl oz in one gallon of water along with the 0.16 to 0.48 fl oz of Duo Stick Surfactant.
It is important to follow the recommended rates per the product label and not overmix or overtreat to avoid burning or injury to your turfgrass. You may see some discoloration, burning or wilting of your turfgrass as the rate applied of 2 fl oz Drive + 1 fl oz Surfactant over 500 sq ft is double the labeled rate.
Answer last updated on: 08/16/2021
