Dithiopyr 40 WSB Help - Questions and Answers

Asked by Gray from Cibolo, Tx

02/17/2018

Q

Does Dithiopyr 40 WSB need to be watered in after application?

A

Yes, Quali-Pro Dithiopyr 40 WSB does need to be watered in in order to activate the active ingredient.

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18 of 25 people found this answer helpful.

Asked by Nicholas from Hudsonville, Mi

04/12/2017

Q

Is there a conversion table per 1000 sq ft for Dithiopyr 40 WSB?
Hi, I purchased this and read the label but I am having trouble finding how much powder should be used per 1000 sq ft and also what the annual limits are for various grass types.

A

How much Dithiopyr 40 WSB you use depends on the program you going to use but the amount is not easily measured out for smaller areas since it is in premeasured pouches. The max rate on the label states: Do not apply more than 0.5 lb ai/ acre per application or more than 1.5 lb ai/acre per year using split or sequential applications.

A better option if you have less than an acre to treat would be the liquid version Dimension 2EW. You will use .33 - .73 of an ounce of Dimension 2EW per 1,000 sq ft. The exact usage rate will depend on your location and the application program you choose. Please refer to pages 4-6 of the product label to find the exact usage rate for your needs.

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13 of 38 people found this answer helpful.

Asked by Alison from Granbury, Tx

02/01/2017

Q

Does Dithiopyr 40 WSB require the use a surfactant?
Also it is my understanding that you mix it with 10 gal of water per pouch, and it covers 1/4 to 1/2 acre.

A

Per the product label for Dithiopyr 40 WSB, when using as a post emergent tank mix for crabgrass: Improved control may be seen by the addition of a nonionic surfactant. The rate will vary depending on the type of grass you have and program you are using. Water is just the carrier so the amount of water you use is dependent on how much it takes to cover the treated area and is not set but you should a minimum of one gallon of water per 1000 sq ft.

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9 of 14 people found this answer helpful.

Asked by Louis from State College, Pa

05/03/2019

Q

Can Dithiopyr 40 wsb be mixed with 2, 4 D and applied together?

A

Dithiopyr 40 WSB and 2, 4 D can be mixed and applied together as long as they mix well in the tank. Be sure to apply during the cooler times of the day.

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8 of 8 people found this answer helpful.

Asked by Jim from Charlotte

08/29/2017

Q

What is the shelf life of Dithiopyr 40 WSB if it is still in the sealed packet?

A

Dithiopyr 40 WSB has a shelf life of 3-5 years from the date of purchase if stored at room temperature.

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6 of 6 people found this answer helpful.

Asked by David from Abilene, Tx

10/22/2018

Q

When can I plant wheat after applying Dithiopyr 40 WSB?

A

Dithiopyr 40 WSB is only labeled to be used in non-crop areas, so nothing edible can be planted in the area where it was applied within 1 year of application.

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2 of 2 people found this answer helpful.

Asked by Jane from Tx

04/11/2018

Q

What fertilizer do you recommend to mix with Dithiopyr 40 WSB and Gallery in a pump sprayer.
I'd like to do all thee of these at once to save time. I need to cover 10k-11k square feet of lawn that is mostly bermuda. There is a little Zoysia and many weeds. I'm in Central Texas, Hill Country.

A

Without knowing exactly what nutrients your lawn needs, it can be difficult to recommend fertilizers. Keep in mind that liquid fertilizers are often applied at either very high rates or designed to be used frequently. Turfgrass Pro 28-0-0 would be used weekly or bi-weekly through the growing season at a rate of 6-12 oz per 1,000 sq ft per application. If you are needing a more complete fertilizer, then Ferti-Lome Lawn Food Plus Iron 24-0-4 also contains iron and micronutrients (this is a granule fertilizer). You can browse all our lawn fertilizers here. Keep in mind that Dithiopyr 40 WSB contains water-soluble packets which are each 5 oz, so for use in TX, 1 x 5 oz pouch covers 14,250 square feet. A better choice for you may be either Dimension 2EW (liquid concentrate) or Hi-Yield Weed and Grass Stopper with Dimension (granule).

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2 of 4 people found this answer helpful.

Asked by F from Memphis Tn

10/24/2019

Q

Once mixed, how long is the Dithiopyr 40 WSB stable and usable?

A

Any mixed Dithiopyr 40 WSB should be used within 24 hours.

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2 of 3 people found this answer helpful.

Asked by John from Nashville, Tn

08/27/2017

Q

Can Dithiopyr 40 WSB be applied via hose-end sprayer?

A

The Dithiopyr 40 SWB must be used in a tank sprayer as these are water-soluble sachets that are typically diluted and dispersed into 25 gallons of water at at time. It would not work in a hose-end sprayer. We highly suggest going with a liquid formulation of pre emergent if you are looking to use a hose end sprayer to treat your yard.

Dimension 2EW Herbicide (each 1/2 gallon jug will treat up to roughly 3 acres):
http://www.domyownpestcontrol.com/dimension-2ew-herbicide-p-1494.html

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1 of 3 people found this answer helpful.

Asked by Judy from Spring Hill, Fl

02/02/2019

Q

Is Dithiopyr 40 WSB applied once a year or twice a year?
What is the time period that Dithiopyr is effective?

A

How much Dithiopyr 40 WSB you use depends on the program you are going to use, however the amount is not easily measured out for smaller areas since it is in premeasured pouches. The max rate on the label states: Do not apply more than 0.5 lb ai/acre per application or more than 1.5 lb ai/acre per year using split or sequential applications. A better option if you have less than an acre to treat would be the liquid version, Dimension 2E. You will use 0.33 – 0.73 of an ounce of Dimension 2EW per 1,000 sq ft. The exact usage rate will depend on your location and the application program you choose. Please refer to pages 4-6 of the product label to find the exact usage rate for your needs.

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0 of 3 people found this answer helpful.

Asked by Tom from Lothian

07/25/2019

Q

What is the application rate of Dithiopyr 40 WSB?

A

How much Dithiopyr 40 WSB you use depends on the program you going to use but the amount is not easily measured out for smaller areas since it is in premeasured pouches. The max rate on the label states: Do not apply more than 0.5 lb ai/ acre per application or more than 1.5 lb ai/acre per year using split or sequential applications.

A better option if you have less than an acre to treat would be the liquid version Dimension 2EW. You will use .33 - .73 of an ounce of Dimension 2EW per 1,000 sq ft. The exact usage rate will depend on your location and the application program you choose. Please refer to pages 4-6 of the product label to find the exact usage rate for your needs.

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Asked by Joe

08/14/2018

Q

When using Dithiopyr 40 WSB in Program 2, what does it mean when the number of pouches per acre is 2+2?

A

Per the Dithiopyr 40 WSB product label: Preemergence applications totaling more than 0.5 lb ai/acre (greater than 1.25 lb/acre of Quali-Pro Dithiopyr 40 WSB) must be applied as a split application made at 5- to 10-week intervals. A maximum of 0.5 lb ai/acre (1.25 lb of Quali-Pro Dithiopyr 40 WSB) per application is allowed for early postemergence control.

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0 of 1 people found this answer helpful.

Asked by Eric from Harvest

08/09/2018

Q

I have a half acre in Alabama, Greens is being cut really low. How much Dithiopyr 40 WSB do I use?
My yard takes about a gallon per 1,000 sqft. The label is pretty complicated.

A

How much Dithiopyr 40 WSB you use depends on the program you going to use but the amount is not easily measured out for smaller areas since it is in premeasured pouches. The max rate on the label states: Do not apply more than 0.5 lb ai/ acre per application or more than 1.5 lb ai/acre per year using split or sequential applications.

A better option if you have less than an acre to treat would be the liquid version Dimension 2EW. You will use .33 - .73 of an ounce of Dimension 2EW per 1,000 sq ft. The exact usage rate will depend on your location and the application program you choose. Please refer to pages 4-6 of the product label to find the exact usage rate for your needs.

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0 of 10 people found this answer helpful.