Winter weed mix?

Sprayed with a 2 gallon sprayer over 1000sqft. I’m not home at the moment to get a pic

I’ve never seen seen this, and my centipede is still dormant in Baton Rouge, maybe some is a little green, but mostly “brown” as it’s still largely dormant. Has your centipede already greened up?

I’ve never seen this post spraying this herbicide mixture, and I’ve been using it a few years. Not uncommon to see a little temporary yellowing of non-dormant lawn grass post-spraying.

Attach a photo when you get a chance.

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The cocktail has been incredible for my St. Augustine yard in Nola. Dollarweed and clovers are just about gone, but my yard is greening up quickly; had to mow it this past weekend. Should I be fertilizing soon? If so, what do you recommend? Should I spray the cocktail again for the few remaining/pop-up weeds?

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Glad it’s working out for you. A good healthy St Aug lawn is going to be your best weed suppressant.

Lawn fertilizer - any good controlled release lawn fertilizer with “high nitrogen” (something with nitrogen, N, in the mid 20s to low 30s) but not “weed and feed” products. Consider a lawn fertilizer carried by the store where you bought your herbicides. I suppose in New Orleans you’re in a green up phase of the grass, so I’d wait a minimum of 2 or 3 weeks to fertilize - I’ll fertilize mine in Baton Rouge around April 1.

Grass is generating a new root system during “green up” phase and is sensitive to herbicides, particularly St Aug. In regards to spraying now for missed weeds, you can spot spray your visible weeds with the cocktail but don’t spray the whole lawn. Once green up is complete, you can can be more liberal with whole lawn herbicide spraying but only if needed.

Lastly, as a reminder St Aug should be cut high, 3 to 3 1/2 inches, to thrive, often people cut grass loo low, I know I did for many years. That will also help to suppress weed germination and growth.

Good stuff. Thanks again. I've been buying my herbicides at Perino's. They have had the Dimension as well as atrazine and the fertilome products.

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Crawdude what fertilizer are you using this year? I have zoysia and centipede so thinking a 15-0-15 is good but it's hard to find and very expensive when you do.

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I use a LESCO 24-2-12 Polycoat that I buy at a Site One Landscape Supply in Baton Rouge. They also make a a LESCO 15-5-15 that I’ve used and is good for centipede. The pricing is excellent. According to their web site there is a Site One in Baton Rouge and Mandeville.

I would not too hung up on the 15-0-15, but you want a low phosphorus level for centipede (middle number). Centipede requires a 1/2 lb of nitrogen (N) per 1000 sq ft per application. For a 24-2-12 that 2 lbs applied per 1000 sq ft.; for a 15-5-15 or 15-0-15 that’s 3 1/3 lbs per 1000 sq ft. It’s a bit easier to get good lawn coverage when applying 3 1/3 lbs vs 2 lbs, that’s one reason for the 15-x-x recommendation for centipede but it’s not a hard fast rule.

Looks like Zoysia requires 1 lb of N per 1000 sq ft per application that about 4 lbs of 24–2-12 per 1000 sq ft or 3 lbs of per 1000 sq ft for a 33-x-x fertilizer.

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I wish we had a Site One up in Monroe. Dr. Strahan said feed zoysia 1/2 N a month and no more than 2 lbs a year otherwise it creates a thatch monster. This also goes along with University of Florida research so that's what I'm going to stick with.

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Thanks for sharing the fertilization info on Zoysia, I was looking at dated info from the AgCenter - certainly follow Dr Stahran’s recommendations - I do.

I’m fortunate to have a Site One and several retail plant nurseries within 10 min of home. The retail nurseries near me mostly carry Fertilome fertilizers, which are good, and they usually carry Fertilome 15-0-15 Centipede fertilizer but it is more expensive per pound than the LESCO product.

I honestly don’t know if others manufacturers make a 15-0-15 as I’ve really haven’t had to search far to find it, but perhaps others can help here. But as I indicated, if you can find a lawn fertilizer with nitrogen in the low to mid 20s, low P, and K in the teens, and you are confident your rotary spreader distributes about 2 lbs of fertilizer evenly over 1000 sq ft then I think you’ll be just fine using a more easily obtained product.

I might be able to help you figure out what happened but I’d need some info. What pump sprayer did you use? When you say pump do you mean a backpack compressed air sprayer? If so was it a fan or cone tip?

The application rate obviously is huge on results and/or damage. If the fill chart you used was a backpack rate but you used it 2G per minute sprayer you would smoke your lawn

I thought the same, but one of the ingredients said not to use more than twice per year...and i'm pretty sure there was a significant time span between the two.