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CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1628 posts

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

Is it worth pulling out by hand or do the roots come back too?

how much you have? It’s an annual so it won’t grow back from the roots. I used to have a major Poa problem. Fall application of Pre-emergents has largely eliminated it. But I’ve pulled up a few by hand.


WPBTiger
USA Fan
Parts Unknown
Member since Nov 2011
18152 posts
 Online 

re: Is it time for pre emergent in South LA?
CrawDude, how do you put down the Winter Weed Cocktail? This is back braking with a tank sprayer doing the entire yard. Can you use a hose end sprayer?


CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1628 posts

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

CrawDude, how do you put down the Winter Weed Cocktail? This is back braking with a tank sprayer doing the entire yard. Can you use a hose end sprayer?

I have 10,000 sq ft of lawn. When I first started using the mixture I purchased 3 gallon backpack pack sprayer which helped but admittedly was still a pain. Then I started using pre-emergent herbicides in fall and spring which reduced my weed load 90%+, now I just need to mix a gallon or 2 of the mixture to spot spray weeds missed by the pre-emergent. So that will be your best option going forward.

To your specific question though, I have hose end sprayer but I tend to use it for insecticides or fungicides. I personally am a little reticent to use it with herbicides to avoid making a mistake and damaging desirable turf grass, but I’m not opposed to using a premixed ready to spray herbicide product off the retail shelf. I did read the read the label on the Hi Yield Atrazine and it states to use it with a conventional compressed air sprayer, it doesn’t say anything about a hose end sprayer. Many herbicides will provide label instructions for use of hose-end sprayers if the product is suitable for that use.

Now a potential option to consider is Fertilome Weed Free Zone makes a ready-to-spray hose-end product LINK and there is also an Image ready to spray product with Atrazine LINK you could consider. Ready to spray products have surfactant already incorporated into them. If you want to consider this option you can save your current supply of atrazine and weed free zone for spot spraying, they are stable compounds with a long-shelf life.

If someone else has perhaps used the winter weed cocktail in a hose end sprayer with good results I hope they will let us know. Not having personally done it myself I’d be reticent to recommend you do this, primarily out of caution if you make a mistake the potential for damaging desirable lawn grass is high.


WPBTiger
USA Fan
Parts Unknown
Member since Nov 2011
18152 posts
 Online 

re: Is it time for pre emergent in South LA?
What preemergents do you use in fall and spring. I figured that may be the case with you that the preemergents took care of most of your weeds. I have St Augustine grass. When is best time for the preemergents.


gamecocks22
South Carolina Fan
SC
Member since Dec 2012
4806 posts

re: Is it time for pre emergent in South LA?
Not CrawDude, but we have similar opinions on this.

Pre Emerge Schedule For St Augustine
(Rough dates)

October 15th Atrazine
December 15th Atrazine
February 15th Barricade or Dimension



Mix "Weed Free Zone" with any of these if you need to kill broadleaf weeds that are already emerged when spraying.




WPBTiger
USA Fan
Parts Unknown
Member since Nov 2011
18152 posts
 Online 

re: Is it time for pre emergent in South LA?
Give products by name that you use


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HubbaBubba
LSU Fan
Denton County, TX
Member since Oct 2010
31242 posts

re: Is it time for pre emergent in South LA?
DFW. I put mine down 1 week ago. Will fertilize about early-mid April.


browl
USA Fan
The Land of Confusion
Member since Nov 2017
1309 posts

re: Is it time for pre emergent in South LA?
I put the atrazine/fertilome/surfactant cocktail down yesterday. I think every weed known to mankind can be found in my yard. Hopefully this stuff works.


PillageUrVillage
LSU Fan
Mordor
Member since Mar 2011
10277 posts
 Online 

re: Is it time for pre emergent in South LA?
I can tell you one thing, it is definitely working in my yard. Be patient. Takes a couple of weeks to work.


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10
CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1628 posts

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

What preemergents do you use in fall and spring. I figured that may be the case with you that the preemergents took care of most of your weeds. I have St Augustine grass. When is best time for the preemergents.

I currently use granular LESCO Dimension (dithiopyr) and LESCO Stonewall (prodiamine) from SiteOne Landscape Supply at good pricing (BR). The equivalent products are Fertilome Dimension and Nitrophos Barricade (prodiamine) which are readily available at many hardware stores and retail plant nurseries. Sounds like you might prefer using a granular product vs spraying - I hear you, I’m pretty much the same, I like the logistics of granular but spray version equivalents of the pre-emergent, specifically prodiamine, are cheaper per 1000 sq ft of application.

Best time of application, in south LA, by mid-February for the spring application, and mid-September/mid-October for the Fall application. It’s better to err on the side of applying too early than applying too late. Gamecocks22 recommendation (he is a professional on this subject, I’m not) of Atrazine in fall and winter are good recommendations as well, and I’m going to follow his advice and use a mid-Dec application of Atrazine or Simazine this year. I have a few more winter annual weeds this year than expected, so I’m going to follow up my mid-September pre-emergent application with a second early/mid-December application.
This post was edited on 2/24 at 11:46 am


Man4others
Member since Aug 2017
1246 posts

re: Is it time for pre emergent in South LA?
I put down Lesco 007 yesterday. I’m in zone 7A. Really happy about the light sprinkling we are receiving today to water it in.


CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1628 posts

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

put down Lesco 007 yesterday. I’m in zone 7A. Really happy about the light sprinkling we are receiving today to water it in.

Put the same down in my landscape beds yesterday and waiting for the rain any hour now to water it in.


Glock17
Chicago Cubs Fan
Member since Oct 2007
19694 posts

re: Is it time for pre emergent in South LA?
Now that I got my preemerg down, my next plan is to spray the weed cocktail that I bought last year. I believe it was 24D, atrinze, and sticker stop maybe? Should I wait for a sunny warmer afternoon to do that or does the temp not really matter?? I’m hoping to get 2 applications of it down before it’s time to fertilize


CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
1628 posts

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

Now that I got my preemerg down, my next plan is to spray the weed cocktail that I bought last year. I believe it was 24D, atrinze, and sticker stop maybe? Should I wait for a sunny warmer afternoon to do that or does the temp not really matter?? I’m hoping to get 2 applications of it down before it’s time to fertilize

You’ll certainly get quicker foliage and root uptake of the herbicides at warmer temperature s and you’ll see the results more quickly. I believe Gamecocks22 suggested 60F +, so yes a sunny warmer afternoon would be ideal.


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gamecocks22
South Carolina Fan
SC
Member since Dec 2012
4806 posts

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

Should I wait for a sunny warmer afternoon to do that or does the temp not really matter


Yes. Especially with 2,4-D. A nice stretch in the 60s and 70s would be ideal. Products like "weed free zone" or "speedzone southern" aren't as temperature dependent as 2,4-D, even though they contain 2,4-D because they also have carfentrazone in them, which is not temperature dependent.

Sorry if I got too technical. Long story short, 2,4-D doesn't work well in cool temperatures.
This post was edited on 2/24 at 8:03 pm


Glock17
Chicago Cubs Fan
Member since Oct 2007
19694 posts

re: Is it time for pre emergent in South LA?
I’m pretty sure what I have is weed free zone. I need to go out to the shop and look


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Bryant91092
Alabama Fan
Member since Dec 2009
21602 posts

re: Is it time for pre emergent in South LA?
I've read in a lot of places not to put any herbicides on the lawn during the spring green up. With that being said, have I essentially missed my window to spray the yard with some Fertilome weed out until April/May? I'd hate to think I was doing something to help the yard and end up stunting it.


Theboot32
LSU Fan
Member since Jan 2016
2174 posts

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

I put the atrazine/fertilome/surfactant cocktail down yesterday. I think every weed known to mankind can be found in my yard. Hopefully this stuff works


this good to put down now or too late? Ive been busy as hell and completely forgot.

Is this a preemergent deal or for weeds already up? i have a ton up right now.

Planning on ordering tonight and applying this weekend.


PillageUrVillage
LSU Fan
Mordor
Member since Mar 2011
10277 posts
 Online 

re: Is it time for pre emergent in South LA?
You can spray that cocktail until the temps get to about 85 Fahrenheit. When it gets hotter than that it can harm your grass.

ETA: And it’s a post emergent spray. So, it’ll kill weeds already up.
This post was edited on 2/25 at 4:45 pm


Theboot32
LSU Fan
Member since Jan 2016
2174 posts

re: Is it time for pre emergent in South LA?
Awesome, and should I put down a preemergent at the same time?

What do you recommend? St Aug yard, probably never been treated, my first year in the house


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