re: Fall Pre Emerge

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I see that Lowes offers Lesco 0-0-7 Stonewall .68% on the other hand, Siteone offers Lesco 0-0-7 Stonewall .43% Is there a big enough difference in these that it matters which I pick? Lowes is def a more convenient drive for me.

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Interesting. I assume the label applications rates on the bags are adjusted (amount to apply per 1000 sq ft) to account for the difference in Prodiamine concentration. I’d go with Lowes if it’s more convenient.

Ronk or Crawdad -- I have a bag of Fertilome Winterizer and Weed Preventer II (10-0-14) laying around the house. I have not put down anything this year on my Centipede lawn located in BR. Will this be a suitable product to help with the control of winter weeds and get me in a good spot going into the spring? If so, should I apply it now?

What is the active ingredient?

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As craw said you can use it. I use it in the spring for crabgrass. Specticle in the fall.

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Can I spray Specticle in fall and spring or does prodiamine work better on crabgrass than Specticle?

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I planned to get some lesco stonewall/prodiamine 0-0-7 and apply in early spring, should I also put the same thing down this fall?

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Sorry I thoguht of another question for the baord. Waht do people think about generic products targeted towards the novice consudmer, like the scotts 4 step program for instace? Looking at that, the 4th step is a fall application that's a 32-0-12. They also ahve a Winterguard for southern lawns but I don't see the specs on that.

Are products like that as effective as just a straihgt up prodiamine applicaiton in the fall instaed?

Going to try the Yard Mastery Prodiamine 0-0-7 this fall

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WHEN TO APPLY AFTER OVERSEEDING

Do not apply to overseeded turf within 60 days after seeding or until after the second mowing, whichever is longer. Injury to
desirable seedlings is likely if this product is applied before seedling secondary roots are in the second inch of soil, not
thatch plus soil.

WHEN TO OVERSEED AFTER APPLICATION

This product will inhibit the germination of turf species if overseeded too soon after application. Follow rates and intervals in
the table below for best overseeding/reseeding results.

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Looks like the play may be to seed the PRG on 1 October and Lesco Stonewall around mid December and then again in March?
Or is March cutting it too close to growing season?

Is there any debate on whether granular vs spray pre-emergent application is better than the other?

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Is there any debate on whether granular vs spray pre-emergent application is better than the other?

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Spray is almost always cheaper on apply on a per 1000 sq ft basis, also you can spray into nooks and crannies that you might miss with granular. Other than that, the efficacy should be be same.

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CrawDude, Please help with my pre emergent / Perennial Rye dilemma. Do the two just not mix well?

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Yes - the 2 are not compatible - within label restrictions. So if applying PRG is of greater importance to you than a late Sept/early Oct pre-emergent herbicide application then plant PRG as early as practical followed by a pre-emergent application 60 days later - early Dec? Then I’d do a second pre-emergent application, south LA, by mid Feb.

If you don’t have a serious an annual bluegrass (Poa) weed issue then missing the late Sept/early Oct pre-emergent application may not be that big of an issue.