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Help! How do I apply Dithiopyr 40WSB (Dimension)

Posted by myhome2 none (My Page) on
Thu, Mar 27, 14 at 16:43

I am very new at this. I ordered generic Dimension (Quali-Pro Dithiopyr 40WSB pre-emergent. I didn't realize that it came in a 20 oz bag (4.5 ounce water-soluble bags) How do you apply it? I have approx. 9,000 sq ft lawn. I don't have a spray tank (can you put it in the small plastic handheld tanks)?
I wish I realized this. I thought I was buying a granular pre-emergent.


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RE: Help! How do I apply Dithiopyr 40WSB (Dimension)

The label should have application rates. They're often listed as quantity of product per acre (43,000 sq ft), applied in minimum of X gallons of water. You'll want to do the math to break that down to 9000 sq ft.

I don't know if you can use a wettable powder in the "dial a spray" hose-end sprayers, but I doubt it. I do know that they're notoriously inaccurate, in any case. And too much Dimension can definitely be a bad thing. I think you want a sprayer. And you'll need to calibrate it to your walking pace & pressure in the tank. A cheap sprayer will be hard to monitor the pressure (and thus liquid output).

Realistically, It may be easier to return the powder/exchange for granular. Especially since you probably want to get it down pretty soon (depending on your location).


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RE: Help! How do I apply Dithiopyr 40WSB (Dimension)

Thank you! I returned the water-soluble bags and bought the granular formula (Lesco's Dimension .21% Plus Fertilizer). I now have to figure out what setting to set my Scott's Edgeguard spreader. I am going to look at Lesco's website.
I am a mom who has never done this before.
Thanks again!


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