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Pre emergent
Posted on 2/22/26 at 10:45 am
Posted on 2/22/26 at 10:45 am
Is it too late on the north shore to apply? I don't want to waste money if so.
10
Posted on 2/22/26 at 11:14 am to way_south
No - most late winter-spring weed seeds have not germinated yet, but best to apply and water in ASAP.
Posted on 2/22/26 at 12:19 pm to way_south
Pretty windy outside also. Good luck!
Posted on 2/22/26 at 4:13 pm to way_south
quote:
Is it too late on the north shore to apply?
It's not too late. If you can't water in I'd wait till next rain.
Posted on 2/22/26 at 5:12 pm to way_south
I applied mine last week in Lafayette and think I nailed it with the rain. But I also will spray my dormant Bermuda with some roundup on spots of sticker weed and over I see popping up.
Posted on 2/22/26 at 6:46 pm to LEASTBAY
quote:
Fyi Bioadvanced has a new granular product that has the same chemical as Specticle.
I used this for fall pre-emergent and the results were A1
Posted on 2/23/26 at 9:52 am to way_south
It is never too late. Yes, you might miss some that have germinated but you'll prevent the rest.
Posted on 2/23/26 at 10:28 am to Sir Saint
quote:Same here in North Louisiana with great results. My wife and I were driving through the neighborhood yesterday and it's amazing how different the yards looks compared to those that obviously didn't use a pre-emergent. I applied another round last week before it rained so hopefully it continues to do its thing.
I used this for fall pre-emergent and the results were A1
Posted on 2/23/26 at 2:27 pm to LEASTBAY
quote:
Fyi Bioadvanced has a new granular product that has the same chemical as Specticle. I'm going to give it a try.
Thats great news. I wonder how it prices compared to the specticle flo. I've been using my $400 bottle for a few years and have at least one more application out of it. (roughly 15k feet of yard to cover)
Posted on 2/23/26 at 3:18 pm to RaginCajunz
$20 treats 4k SF (or says up to) I already sprayed prodiamine once but will put this down in March being I split my prodiamine.
Posted on 2/23/26 at 3:24 pm to way_south
On the Southshore, Poa Annua sprouted weeks ago.
Posted on 2/23/26 at 4:54 pm to way_south
To avoid this set a schedule so your not trying to time it. Example I use.half rate of prodiamine in September. Another half rate of prodiamine in December. In February full rate of Specticle® FLO in February.
Posted on 2/23/26 at 7:55 pm to AFtigerFan
What product?
Posted on 2/23/26 at 9:16 pm to LSUregit
The Bioadvanced linked earlier in this thread.
Posted on 2/23/26 at 10:31 pm to way_south
Never too late
Posted on 2/24/26 at 7:49 am to CrawDude
Craw dude,
Have always enjoyed your advice.
Just laid zoysia about 3 weeks ago, post cold snap. Coming out of dormancy, no issues there. What would you recommend for a fertilizer/weed schedule over say the next 6 months?
Have always enjoyed your advice.
Just laid zoysia about 3 weeks ago, post cold snap. Coming out of dormancy, no issues there. What would you recommend for a fertilizer/weed schedule over say the next 6 months?
This post was edited on 2/24/26 at 9:20 am
Posted on 2/24/26 at 11:52 am to BlackenedOut
quote:
Just laid zoysia about 3 weeks ago, post cold snap. Coming out of dormancy, no issues there. What would you recommend for a fertilizer/weed schedule over say the next 6 months?
Not a zoysia “expert”, I’ll defer to other on the board in that regards, particularly ronk who is a professional and does this for a living but I’ll make these comments.
1. Newly laid sod - no pre-emergent herbicide until the sod-lawn becomes established, usually 4-6 months, and that information will be clearly stated on any pre-emergent herbicide label, so always read the label.
2. If needed, you will be able to use post-emergent herbicides fairly soon, after the sod is rooted in, say a couple months, but again read the herbicide label. Avoid Weed & Feed products (herbicides & fertilizer mixed together) - they are convenience products- best to implement weed control & fertilization as two separate activities.
3. Fertilization - most sod comes pre-fertilized, and believe Zoysia requires less nitrogen fertllizer than St Augustine or Bermudagrass. 1/2 to 1 pound of Nitrogen (N) “slow release” lawn fertilizer per 1000 sq ft per application, perhaps starting mid-April, and second application 3-4 months later - mid July. Do not exceed 2 lbs of N per 1000 soft per year (growing season). The application rate might be dependent on the Zoysia cultivar you have - I’ll defer to others on this.
4. As I read from others a reel mower is likely best for Zoysia? But most important, cut it at the appropriate height for grass health, 1 to 2 inches depending on the cultivar, but again it’s cultivar dependent so you might want to share that info, or even start a new thread. You’ll get many good recommendations/suggestions from those with Zoysia lawns.
Zoysiagrass - LSU AgCenter
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