What type of lawn pre emergent do you use?

Prodiamine

Tenacity

Sure all the Fertilome products are good, including their Dimension pre-emerge product. What I like about Dimension is that it also has some post-emergent control of very young crabgrass giving it a slightly broader window of application but that only applies to the spring application.

I do now use the Lesco brand of Dimension (sold at SiteOne Landscaping Supply) only because you get 50 lbs of product compared to 30 lbs of Fertilome product for about the same price, but the active ingredient dithiopyr is the same in the same concentration.

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Although the BR stores did not have

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Yep, I’ve never seen any brand of the dithiopyr pre-emergent carried at Lowe’s or HD in BR, just the independent retail plant nurseries, Site One, and some hardware stores.

If I put prodiamine down now ...do I need to do a second application at a later date?

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If I put prodiamine down now ...do I need to do a second application at a later date?

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Yeah 2 applications a year. I think I usually wait until October but someone else on here can confirm when

Last week of September thru first week of October is optimal for winter weeds.

In the spring, I think its the last week of February for summer weeds.

Specticle on bermuda and simazine on st aug. then dimension and barricade early next year.

Does any of that take care of dollar weed?

I don't believe you'll find pre-emergents labeled for dollarweed. You could grab an all in one like Spectracide Weed Stop which will kill existing weeds including dollarweed and also has a pre-emergent for crabgrass control.