How To Use Dithiopyr 40 WSB Pre Emergent Herbicide

If you want to get the most out of your Dithiopyr 40 WSB Pre Emergent Herbicide application, you should make sure there are no weeds already present.

Once weeds have emerged, they are immune to dithiopyr 40 WSB’s weed control effects. It is necessary to use a post-emergent herbicide if the target weed has already germinated.

Dithiopyr 40 WSB Properly maintained pre-emergent herbicide has a shelf life of up to two years. Keep Dithiopyr in the original container and store it in a cold, dry place.


What Is the Dithiopyr 40 WSB Pre Emergent Herbicide?

Dithiopyr 40 Wsb
Picture of the Dithiopyr 40 WSB

Synonyms: dithiopyr 40 WSB To keep lawns and fields looking their best, homeowners often turn to pre-emergent herbicides.

Dithiopyr, the active component, is used to prevent the growth of annual grasses and broadleaf weeds like Crabgrass and Carpetweed.

Before the emergence of tillers, apply Quali-Pro Dithiopyr 40 WSB, and before the germination of target weeds, apply any other herbicide.

Dithiopyr-40 WSB Pre-emergent herbicide is a useful tool for maintaining a lush, green lawn, whether it’s a golf course or a front yard.

The herbicide is available in water-soluble 5-ounce packages and can be used in tandem with a wide range of liquid fertilizers and insecticides.

Use Dithiopyr 40 WSB Pre Emergent Herbicide for stunning gardens and ornamental lawns.


Read also: How To Use Dimension 2EW Herbicide


How To Use Dithiopyr 40 WSB Pre Emergent Herbicide

Dithiopyr 40 WSB If you want to prevent weeds from sprouting, you need to use pre-emergent herbicide before the seeds sprout. To get rid of Crabgrass, use Dithiopyr 40 WSB in the spring or early summer.

  • Calculate the square footage of the grass by multiplying its length by its breadth. Pouches of Dithopyr WSB, which dissolve in water, are available. Given that one 5-ounce packet of dithiopyr, when diluted in water, can treat 10,890 square feet, the chemical is clearly designed for use on a far larger scale.
  • Begin by filling the spray tank halfway with water and then adding the specified amount of Dithiopyr. Completely fill the sprayer with the specified amount of water, then shake vigorously to ensure a uniform mixture.
  • Spot-treat your grass with the product, keeping the nozzle as low to the ground as possible to prevent drift, and using a cone fan nozzle spray setting to ensure even distribution. For prolonged pre-emergent weed control, apply while the ground is wet and then again at 3- to 4-month intervals.


Where Can I Apply Dithiopyr 40 WSB Pre Emergent Herbicide?

  • Lawns
  • Commercial sod farms
  • Ornamental turf
  • Sports turf
  • Golf course fairways
  • Roughs
  • Tee boxes
  • Container-grown ornamentals
  • Landscape ornamental
  • Non-cropland
  • Natural areas
  • Christmas trees


Read also: How To Use 2,4-D LV6 Herbicide


What Are the Target Pests For Dithiopyr 40 WSB Pre Emergent Herbicide?

  • Annual bluegrass
  • Barley
  • Barnyardgrass
  • Bittercress
  • Black Medic
  • Brome
  • Buttercup Oxalis
  • Carolina geranium
  • Carolina Geranium
  • Carpetweed
  • Chickweed
  • Common Lespedeza
  • Common Purslane
  • Corn Speedwell
  • Creeping Woodsorrel
  • Crowfootgrass
  • Dallisgrass
  • Garden Spurge
  • Giant Foxtail
  • Goosegrass
  • Green Foxtail
  • Henbit
  • Kikuyugrass
  • Large Crabgrass
  • London Rocket
  • Marestail
  • Mary’s Grass
  • Mustard
  • Parsley-Piert
  • Pineappleweed
  • Prostrate Knotweed
  • Prostrate Knotweed
  • Prostrate Spurge
  • Purple Coneflower
  • Redroot Pigweed
  • Sandbur
  • Shepherdspruce
  • Smooth Crabgrass
  • Smutgrass
  • Southern Crabgrass
  • Spotted Spurge
  • Wild Oat Ryegras
  • Yellow Foxtail
  • Yellow Sorrel


Read also: How To Use 3-D Herbicide Triplet Alternative



It is important to note that Quali-Pro Dithiopyr 40 WSB is only effective against crabgrass up until the time that the grass begins to show signs of tillering.

Emergent weeds are resistant to Quali-Pro Dithiopyr 40 WSB. Before the emergence of tillers, apply Quali-Pro Dithiopyr 40 WSB, and before the germination of target weeds, apply any other herbicide.

It is necessary to activate Quali-Pro Dithiopyr 40 WSB for it to work. Activation occurs after being watered in, either by natural precipitation or artificial irrigation (of half an inch or more).

The best time to apply is just before the weeds begin to germinate or before the crabgrass reaches the tillering stage of development. Thanks for reading fam!

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