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CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1270 posts

re: Is it time for pre emergent in South LA?
quote:

will have to look at the label when I get home. It's the green one, NOT the purple one that is just for St. Aug. I know it is safe for my grass as I have used it in the past. I was more so asking if I could use them so closely together. Zoysia tends to green up slower. I will definitely wait until a cut or two is needed before I fertilize. I would like to have a 1/2" of topsoil added to the yard or at least have someone help work on some of my low spots

Yes you can use pre and post emergent herbicides close together - I do. . I’ve not seen anything on any herbicide label saying to avoid this. The chemicals have completely different modes of action.


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CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1270 posts

re: Is it time for pre emergent in South LA?
quote:

What should I be putting down right now for St. Aug?

You have weed issues? If so,
1. Put out a pre-emergent herbicide ASAP. Read through the thread for options. Re-apply this fall, around mid-Sept/early Oct.

2. You have existing weeds - use the the winter weed cocktail, formula is in this thread, and a couple others, and spray them ASAP. Repeat if needed in 3 or 4 weeks.

3. Fertilize lawn after cutting your lawn twice, prob around mid-March, with a high nitrogen controlled release lawn fertilizer, not a feed & weed.

4 Cut your St Aug at 3 to 3 1/2 inches in height to optimize lawn health, don’t scalp it.


slinger1317
Houston Astros Fan
Northshore
Member since Sep 2005
3754 posts

re: Is it time for pre emergent in South LA?
quote:

use the the winter weed cocktail


I looked through earlier posts, but couldn't find exactly what products are used to kill of winter weeds?

I have Zoysia that I treated with Pre-Emergent last fall, but a few winter weeds have popped up in the shady areas of my yard.


browl
USA Fan
Ain't no half steppin'
Member since Nov 2017
1250 posts

re: Is it time for pre emergent in South LA?
Question...

Is this winter weed cocktail pet-friendly?


CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1270 posts

re: Is it time for pre emergent in South LA?
quote]have Zoysia that I treated with Pre-Emergent last fall, but a few winter weeds have popped up in the shady areas of my yard.[/quote]

The winter cocktail is a combination of 8.6 fluid oz Hi-Yield atrazine (4%) + 1 fluid oz of Fertilome Weed-Free-Zone + 2 teaspoons of Hi-Yield Spreader-Sticker (surfactant) mixed in 1 or 2 gallons of water and evening sprayed over 1,000 sq ft. Safe on Centipede and St Augustine, but not on Bermudagrass or Zoysia, unless the Bermudagrass or Zoysia is Dormant

However, the Fertilome Weed-Free-Zone alone, with surfactant is safe to use on actively growing Zoysia (and Bermudagrass) so unless your Zoysia is completely dormant just spray the Weed-Free-Zone with surfactant on the weeds, spot spray if you want. I think you’ll be pleased with the results, particularly if the weeds are young. You should be able to purchase the Weed-Free-Zone and the spreader-sticker (surfactant) at a good hardware store or retail plant nursery, big box stores don’t carry it, at least in my experience.

Here is the label with instructions Fertilome Weed-Free-Zone

This post was edited on 2/13 at 8:25 am


highpockets
New Orleans Saints Fan
Lafayette
Member since Feb 2015
1423 posts

re: Is it time for pre emergent in South LA?
I give up on my yard, not gonna waste money on Pre emergent,yard likely wont dry out for at least 10 days.


CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1270 posts

re: Is it time for pre emergent in South LA?
quote:

I give up on my yard, not gonna waste money on Pre emergent,yard likely wont dry out for at least 10 days.

pre-emergents need to be watered anyway so a wet yard isn’t a bad thing. Of course I don’t mean under-water. Don’t give up yet - there still hope.


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CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1270 posts

re: Is it time for pre emergent in South LA?
quote:

Is this winter weed cocktail pet-friendly?

Without re-reading the labels for both herbicides, I’m pretty sure they recommend to contain your pets while spraying and it’s safe to release them after the herbicides dry, which is usually within an hour after spraying. I have a Labrador, and that’s the practice I follow when applying pesticides.


GeauxPack81
California Fan
Member since Dec 2009
9671 posts

re: Is it time for pre emergent in South LA?
quote:

CrawDude


Question, didn't feel it warranted its own thread... I have some huge pine trees that drop a ton of pine needles across the yard. Am I okay to just mulch them into the lawn when I mow, or is that not ideal?


CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1270 posts

re: Is it time for pre emergent in South LA?
I think if your mower chops them up fine enough to so that the the blades of the grass is not covered or “smothered” I don’t see why not. Maybe you’ll need a couple passes with the mower. You have landscape/flower beds? Pine straw makes great mulch for landscape beds, I probably spend a couple hundred $ per year on bales of pine straw for landscape mulch.
This post was edited on 2/13 at 4:03 pm


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USA
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PillageUrVillage
LSU Fan
Mordor
Member since Mar 2011
10097 posts

re: Is it time for pre emergent in South LA?
quote:

CrawDude


You seem like the person to ask. I tried to not spray any of the weed cocktail too close to my vegetable garden. Right now nothing is planted. Probably another 5-6 weeks before I plant. Do I have to worry about any runoff contaminating and killing my vegetable garden when I plant?

I know. Probably should’ve thought of this before I sprayed.

I’m guessing probably not a good idea to spread pre emergent nearby, either?
This post was edited on 2/13 at 5:14 pm


CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1270 posts

re: Is it time for pre emergent in South LA?
quote:

I tried to not spray any of the weed cocktail too close to my vegetable garden. Right now nothing is planted. Probably another 5-6 weeks before I plant. Do I have to worry about any runoff contaminating and killing my vegetable garden when I plant?

I know. Probably should’ve thought of this before I sprayed.

I’m guessing probably not a good idea to spread pre emergent nearby, either?

Well ideally you don’t want atrazine near vegetable gardens or in landscape beds.
You don’t need concerned with any residual effects of the weed-free-zone on something not yet planted, and certainly not 5-6 weeks out. Ditto on the atrazine. Of course pre-emergent will prevent vegetable seeds from sprouting, atrazine can also potentially do the same because it also has pre-emergent properties. But they won’t have an effect on vegetable transplants.

Sounds like you should be OK as you stated “near” and not “in”, but if you think you may have incidentally applied some pre-emerge in areas of the veg garden, use vegetable transplants in that area and not seeds.


PillageUrVillage
LSU Fan
Mordor
Member since Mar 2011
10097 posts

re: Is it time for pre emergent in South LA?
My yard is sloped to where some water does drain toward the garden. But it mostly drains to the sides of my house. I also have the soil level raised about 4-6” above ground level. But I was reading that atrazine can stay in the soil for a while. So, I had a bit of an “oh crap” moment reading that. I stayed a few feet away from the border when I sprayed. Hopefully everything will be ok. Tomato plants, specifically, are really sensitive to herbicides. I know this from experience.

This will all be transplants. I do plan on direct sowing beans and cucumbers. But that’s still a couple months away. Hopefully I didn’t screw my garden all up.

ETA: You’ve been a wealth of knowledge in these threads lately and I am very grateful. This is really my first year trying to get my lawn right. I’ve always kinda been a little too apprehensive to try to spray all kinds of chemicals in my yard.
This post was edited on 2/13 at 8:01 pm


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GeauxPack81
California Fan
Member since Dec 2009
9671 posts

re: Is it time for pre emergent in South LA?
quote:

You have landscape/flower beds? Pine straw makes great mulch for landscape beds, I probably spend a couple hundred $ per year on bales of pine straw for landscape mulch.


Yep, the pine trees are a curse but also a blessing. They drop loads of pine needles and pine cones on my lawn, but at the same time they naturally cover all my beds in pine needles and cover most of my back porch in shade.


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Hammond Tiger Fan
Vanderbilt Fan
Hammond
Member since Oct 2007
15139 posts

re: Is it time for pre emergent in South LA?
quote:

CrawDude


Do you know if I can spray the winter weed cocktail in my flower beds or is it specifically for lawns?


CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1270 posts

re: Is it time for pre emergent in South LA?
quote:

Do you know if I can spray the winter weed cocktail in my flower beds or is it specifically for lawns?

No - you don’t want atrazine in flower/landscape beds, and one of the herbicides in the weed-free-zone has some residual soil activity for 30 days so probably best not to use it either. For weeds I can’t or don’t wish to pull in landscape beds, I use glyphosate (generic “Roundup”) with no issues.


sleepytime
Member since Feb 2014
2364 posts

re: Is it time for pre emergent in South LA?
I’ve got about 8 acres of st Augustine to treat and can’t get my hands on the high strength atrazine anymore. Is there another post emergent I can use along with prodiamine that’s fairly concentrated?


tigerfan5959
LSU Fan
Member since Jun 2010
249 posts

re: Is it time for pre emergent in South LA?
Would weed be gone be Affective right now ? I already put a pre-emergent.( Prodiamine ) I have a Bermuda lawn. I have some weeds coming up. there something better than weed be gone I should use?


gamecocks22
South Carolina Fan
SC
Member since Dec 2012
4792 posts

re: Is it time for pre emergent in South LA?
Simazine/Princep


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gamecocks22
South Carolina Fan
SC
Member since Dec 2012
4792 posts

re: Is it time for pre emergent in South LA?
quote:

Would weed be gone be Affective right now


Yes it works great. Just try and spray on a day when we get highs at least in the 60s.


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