Diuron 80 may be applied to soil prior to emergence of weeds to control susceptible weed seedlings for an extended period of time. Please contact your local cooperative extension office to determine the correct timing of the application as this will vary greatly from region to region depending on the target weeds..
Drexel Diuron 80 Herbicide has been replaced with Alligare Diuron 80 DF, and this new product can be shipped to Texas.
Drexel Diuron 80 Herbicide is not labeled for use in ponds. You can see products that are labeled for use in ponds here: https://www.domyown.com/aquatic-herbicides-c-59_933_555.html
Drexel Diuron 80 Herbicide is not safe for bermudagrass nor is it labeled for use in any residential areas, only around listed crops and in non-crop areas such as utility yards, industrial sites, and uncultivated agricultural areas.
Drexel Diuron 80 Herbicide is not labeled for use in aquatic areas, so we cannot recommend this use. The label specifies not to apply this product directly to water. You can view our Aquatic Herbicides here.
You will need to reference the Drexel Product Label for how much of the Drexel Diuron 80 you will need since the rate per acre in pounds varies by the weed you are targeting. Keep in mind once you determine what rate you should be using over the area which you are treating for that weed, the water volume you mix it in is the carrier, not the diluter, so your main focus is evenly applying the active ingredient over the correct square footage.
On average you will use 40-80 gallons of water per acre and mix in the correct amount of herbicide needed per the coverage of your tank sprayer.
HI-Apply 2 to 6 pounds of Drexel Diuron 80 Herbicide per acre as a broadcast spray just before or immediately after planting but prior to weed emergence. Use 2 to 4 pounds per acre after harvesting the plant crop or ratoon crop (for first ratoon crop as well as subsequent ratoon crops) but before differentiation. For plant crop only, additional broadcast or interspace applications may be made prior to differentiation at 2 pounds per acre at intervals of not less than 2 months. Additional applications to plant crop may be made as needed to interspace only using 2 pounds per acre. Do not apply more than 12 pounds per acre as broadcast sprays nor more than 16 pounds total per acre per plant crop. Treated areas may be planted to pineapple or sugarcane 1 year after last application.
FL: Apply 4 to 8 pounds per acre as a broadcast spray just before or immediately after planting, but prior to weed emergence. Use 4 pounds per acre after harvesting plant crop (for ratoon crop). For plant crop only, a second and third broadcast or interspace application may be made prior to differentiation at the rate of 2 pounds per acre at intervals of not less than 2 months. Additional applications to plant crop may be made as needed to interspace, only using 2 pounds per acre. Do not apply more than 3 broadcast sprays (maximum 12 pounds per acre) prior to differentiation, nor more than 16 pounds total per acre per plant crop. Treated areas may be planted to Pineapple or Sugarcane 1 year after last application.
Puerto Rico: Apply 3.75 to 6.25 pounds per acre as a broadcast spray just before or immediately after planting, but prior to weed emergence. Application controls weeds such as Crabgrass, Crotalaria, Fall panicum, Foxtail, Goosegrass, Morningglory, Pigweed, Purslane and Sourgrass. Treated areas may be planted to Pineapple or Sugarcane 1 year after last application.
Drexel Diuron 8- Herbicibe is labeled for several grasses as a pre-emergent. If you meant crabgrass then this would certainly work on it. We did not find any listing for a "crash" grass.
Drexel Diuron 80 Herbicide is not labeled to be used on homes lawns, so it would not be recommended. If you want to kill everything currently growing in the area now, you should use a glyphosate based product like RoundUp QuikPro, then you can resod the area in 2 weeks. After the sod is established you would use a pre-emergent like Prodiamine 65 WDG and a post emergent like Drive XLR8 to more effectively control crabgrass and other broadleaf weeds.