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Dithiopyr 2L Herbicide

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Dithiopyr 2L Herbicide (generic Dimension EW herbicide) from Quali-Pro is a pre-emergent and post-emergent herbicide for control of both grassy and broadleaf weeds in established turf and ornamentals. Its low mix rate and non-staining formulation make it a great alternative to prodiamine.

Target Pests

Dithiopyr 2L is used for the control of grassy and broadleaf weeds such as barley barnyardgrass bluegrass brome crabgrass crowfootgrass dallisgrass foxtail goosegrass wild oats ryegrass sandbur smutgrass bittercress carpetweed chickweed dandelion geranium henbit knotweed medic parsley pigweed sheperdspurse sowthistle spurge woodsorrel and many other listed weeds.

For Use In

Dithiopyr 2L is for use in established lawns commercial sod farms non-cropland and industrial sites ornamental turf (including golf course fairways roughs tee boxes) container-grown ornamentals and landscape ornamentals.


If using Dithiopyr 2L in Texas apply at a rate of 0.55 to 0.92 ounces per 1,000 square feet or at 1.5 to 2.4 pints per acre. For other specific states and the application rates used refer to label above.

Do not apply more than 0.73 ounces of Dithiopyr 2L per 1,000 square feet per application.

Do not apply more than 2.2 ounces of Dithiopyr 2L per 1,000 square feet per year using split or sequential applications.

Coverage Area

If Dithiopyr 2L is used at the maximum rate per application each gallon will cover an estimated 175,000 square feet or approximately 4 acres.

Time to Kill

Dithiopyr 2L begins to eliminate target weeds within hours of application can can take up to several weeks to completely eliminate weeds.

Active Ingredient

Dithiopyr 23.6%,

Dithiopyr 2L Herbicide

Product Q & A

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Is thhis harmful to dogs when sprayed
granny on Apr 13, 2017
BEST ANSWER: No, But do keep all children and pets off the area while treating. They can come back out to the area once the treatment has been completed.
How many ounces per gallon of water?
Chief on Apr 26, 2016
BEST ANSWER: The mix rate for dithiopyr 2l is 3/4 ounces per gallon of water. That will treat up to 1000 square feet for spot treatments. If you are doing broadcast application then you would use 1 quart of dithiopyr per acre.

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