Speedzone EW Herbicide does not contain a surfactant in the formulation and is not recommended by the manufacturer. Since Drive XLR8 Herbicide Crabgrass Killer does require the use of the MSO surfactant, two separate applications would need to be done.
Yes, Drive XLR8 is pet friendly when applied as directed per the product label. Keep pets out of the areas while spraying and until the application has completely dried.
You can use 63 oz of Drive XLR8 Herbicide Crabgrass Killer in a minimum of 20 gallons of water to cover an acre (add MSO to mixture per label instructions).
Colonial Bentgrass and Seaside Bentgrass are listed as suseptible to applications of Drive XLR8 Herbicide Crabgrass Killer while Creeping Bentgrass is listed as moderately tolerant to the herbicide.
Refer to Table 1 and Table 2 on page 8 of the product label for addtional information. The addition of a Methylated Seed Oil Surfactant is needed to use with Drive XLR8 for best results.
The best treatment to eliminate bentgrass in bermuda lawns would be to spot treat with a non-selective herbicide such as Roundup QuikPro and then reseed/resod after 2 weeks.
Timing intervals can vary for reseeding/overseeding with applications of Drive XLR8 Herbicide Crabgrass Killer will depend on your turfgrass type.
Please refer to the Seeding/Overseeding Timing Chart on page 10 of the product label for intervals to overseed for your application.
Drive XLR8 Herbicide Crabgrass Killer is not labeled to be used on Centipede lawns therefore would injure the new centipede seedlings that are germinating and growing. You will want to wait until after the 2nd mowing of the newly seeded Centipede before making any post emergent applications.
An alternative product recommendation would be Blindside Herbicide WDG as it is safe for Centipede and Zoysia turfgrasses and labeled for crabgrass and other grassy and broadleaf weeds.
Apply at the mix rate of 0.15 - 0.23 oz. per 1,000 sq. ft. (6.5 - 10 oz. per acre) when temperatures are between 65 to 85 degrees.
The most important factor when planning to tank mix various herbicides is referring to all manufacturer's product labels for tank mixing restrictions. In this case, because Drive XLR8 Herbicide Crabgrass Killer requires the use of an MSO Surfactant like Prime Source Duo Stick Select in order to be effective, it would not be recommended due to the fact that most Turflon Ester product labels advise not adding a surfactant for lawn treatments as this can cause damage to turf grass.
As long as the application of Drive XLR8 Herbicide Crabgrass Killer had time to completely dry before rainfall it should be fine. If it was a heavy rainfall to cause puddling or runoff, we would recommend a follow up application.
If you applied the Drive XLR8 Herbicide Crabgrass Killer a couple of weeks ago, you can go ahead and apply the TZone SE Herbicide with no issue.
The product label states that Seashore Paspalum is moderately tolerant to the use of Drive XLR8 Herbicide Crabgrass Killer.
