- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
re: Late winter pre-emergent application:
Posted on 1/27/21 at 11:05 am to tilco
Posted on 1/27/21 at 11:05 am to tilco
Appreciate the advice, neighbor. I went ahead and put mine down, too. Though it looks like I missed out on the rain, so I’m having to water mine in a little bit.
Praying this works. I also pulled all my lespedeza up last summer while working remote, but that was a pain in the arse and I never completely got rid of it.
Praying this works. I also pulled all my lespedeza up last summer while working remote, but that was a pain in the arse and I never completely got rid of it.
0
Posted on 1/27/21 at 12:10 pm to Crimson1L
quote:
1. When are you other South Alabama guys putting down this round of pre-emerge? Should I go ahead and do it now since it’s already on-hand and temps hitting 70+? Or wait another week and apply in Feb?
2. Should I go back to the Prodamine for round 3 in mid-March? Or go with something else?
3. Anything extra I can put down now to ensure that god awful lespedeza doesn’t show back up?! Or will these rounds of Prodamine and Dimension handle?
1. Being you are basically the same latitude as Baton Rouge, I wouldn’t see any issue putting it out now or waiting to the first week of Feb. Frankly, I’d try to time ithe application anytime between now and the the first week of Feb right before a rain b/c the pre-emergent needs to be watered in anyway.
2. & 3. mid-March seems a tad early for a second application, usually mid-April/early May or when soil temperature is projected to to 70 F. According to the LSU AgCenter the pre-emergent isoxaben is recommended for Lespedeza, not prodiamine or dithopyr (Dimension). LINK. So for the second application consider using isoxaben rather than Prodiamine or dimension.
For example, Doveweed is a major summer weed problem for me but Prodiamine and Dimension offer poor control so in my case I’ll be applying Specticle pre-emergent in by mid-April as my second application to target the doveweed (and other weeds) following my first week Feb application of prodiamine.
One of the H&G posters linked this useful site last year for estimating projected soil temps. LINK
This post was edited on 1/28/21 at 5:48 am
Posted on 1/27/21 at 1:23 pm to CrawDude
This was extremely helpful and good links. Looks like I’ll definitely be laying down some isoxaben in April.
Posted on 1/27/21 at 7:02 pm to CrawDude
With that weed free zone and atrizine mixture, is substituting Dawn the same as the weed sticker? I think I remember hearing something about that, or am I thinking of something else?
Posted on 1/27/21 at 9:56 pm to coopsdad
quote:
With that weed free zone and atrizine mixture, is substituting Dawn the same as the weed sticker? I think I remember hearing something about that, or am I thinking of something else?
Many do use Dawn detergent as a surfactant and it’s better than nothing, and I’ve used in a pinch, but of course it’s foaming and I’ve not see definitive proof that it is a non-ionic surfactant as opposed to an ionic surfactant. That said, non-ionic surfactant (spreader/sticker) as recommended is cheap and specifically formulated to be used with herbicides, just seems prudent to me to use a spreader/sticker formulated to be used with herbicides to get the best performance out of those herbicides, which are much more expensive.
Posted on 1/27/21 at 9:58 pm to CrawDude
Craw, are you applying full recommended rates on Feb. 1st and April 15th or do you split the rate in half.
For example, let’s assume your have 1 acre to spray and the recommended rate of Prodamine (your Feb. 1st choice) is 2 quarts per acre and the rate for Specticle (April 15th) is also 2 quarts per acre.
In this case would you put 1 quart of Prodamine down on Feb. 1st and then 1 quart of Specticle April 15th or do you use the full 2 quarts each application?
I put a full rate of Simazine in October and would like to also apply two spring (Feb. / April) applications with alternate product to hit a larger spectrum of weeds but I want to make sure I get the rates correct. TIA
For example, let’s assume your have 1 acre to spray and the recommended rate of Prodamine (your Feb. 1st choice) is 2 quarts per acre and the rate for Specticle (April 15th) is also 2 quarts per acre.
In this case would you put 1 quart of Prodamine down on Feb. 1st and then 1 quart of Specticle April 15th or do you use the full 2 quarts each application?
I put a full rate of Simazine in October and would like to also apply two spring (Feb. / April) applications with alternate product to hit a larger spectrum of weeds but I want to make sure I get the rates correct. TIA
Posted on 1/28/21 at 7:45 am to good_2_geaux
You would use the full rate of each. Be careful with specticle. That is a very strong pre em. I use that in the fall. What grass type do you have? Bermuda/centipede/St Aug have different rates.
Posted on 1/28/21 at 9:51 am to good_2_geaux
quote:
good_2_geaux
I see ronk has answered the question for you regarding rate and split application of two different pre-emergents. In my case Doveweed is such a serious issue at this point I need to go with Specticle in the spring, I’m just tired of using post-emergent control on it.
And do watch closely your second window of application of pre-emergent, say April, relative to soil temp (70 F). I missed my window of spring application of Specticle for Doveweed control last year by focusing on a calendar date application more so than soil temp. And b/c of the warm winter we had in 2019-2020 Doveweed seed germinated prior to my targeted calendar date application, about 3 weeks earlier than usual. I won’t make that mistake this year.
Posted on 1/28/21 at 10:07 am to CrawDude
I might try Specticle in the spring. Do you remember how much it costs? I'd need enough for 15,000 sq/ft.
Posted on 1/28/21 at 10:56 am to OysterPoBoy
About $250 bones. It is 81mls at a 2 gallon rate for 15,000 square feet. That is for bermuda though.
Posted on 1/28/21 at 12:02 pm to ronk
Does that mean $250 for $15,000 sq ft? I got lost on the mls.
One other question. I have a small section in the side of my house that isn’t mine so I’ve never treated it but since nobody else will I’m going to go ahead and do it. It’s full of clover and some broadleaf weeds.
I don’t have any pre emergent left over. Should I just hit it with the winter cocktail and then pre emergent on my next pass in the spring? Or would I be better off buying more pre emergent now and hanging onto the extra for spring?
ETA: I know ideally I would get more pre emergent. I guess it’s more of a what would you do question?
One other question. I have a small section in the side of my house that isn’t mine so I’ve never treated it but since nobody else will I’m going to go ahead and do it. It’s full of clover and some broadleaf weeds.
I don’t have any pre emergent left over. Should I just hit it with the winter cocktail and then pre emergent on my next pass in the spring? Or would I be better off buying more pre emergent now and hanging onto the extra for spring?
ETA: I know ideally I would get more pre emergent. I guess it’s more of a what would you do question?
This post was edited on 1/28/21 at 12:15 pm
Posted on 1/28/21 at 2:10 pm to ronk
I have a front yard of centipede and a back yard of St. Aug. The centipede has a lot of carpet grass mixed in.
I applied Simazine in October to both.
I’m thinking Dimension & Simazine this spring.
I’ll maybe try Specticle next year. I would like to use up the Simazine that I have left first.
I applied Simazine in October to both.
I’m thinking Dimension & Simazine this spring.
I’ll maybe try Specticle next year. I would like to use up the Simazine that I have left first.
Posted on 1/28/21 at 2:42 pm to OysterPoBoy
quote:
I might try Specticle in the spring. Do you remember how much it costs? I'd need enough for 15,000 sq/ft.
I think it was $220 per bottle at Site One last spring. Trying to recall from memory, but when I worked out the calculation last spring I think it came to about $25 worth of Specticle to apply to about 10,000 sq ft of Centipede and St Augustine lawn when applied at the recommended application rate. More expensive than Prodiamine or Dimension per 1000 sq ft but if it is as good as ronk, gamecocks22 and others say it is, I’m more than happy to pay that or more to get control over Doveweed, etc.
This post was edited on 1/31/21 at 11:39 pm
Posted on 1/28/21 at 4:21 pm to OysterPoBoy
Craw's calculations are close. I did it at $250 per bottle and it is $38 to treat 15k of bermuda. One bottle can treat a 15,000 square foot BERMUDA lawn 6.5 times.
Check the calculations for St Aug/centipede before mixing 81mls to treat your 15k.
Check the calculations for St Aug/centipede before mixing 81mls to treat your 15k.
Posted on 1/28/21 at 5:05 pm to ronk
Is there a shelf life once I open it? That should last me several years.
Posted on 1/28/21 at 7:15 pm to OysterPoBoy
will this work for Virginia Buttonweed...what and when?...
Posted on 1/29/21 at 6:17 am to farad
quote:
will this work for Virginia Buttonweed...what and when?
No pre-emergent is going to be effective against VBW. It’s is a perennial weed capable of reproducing 4 ways - above and below ground seeds, and above ground stolons and below ground rhizomes. A pre-emergent might help with the above ground seeds but not the other three methods of reproduction.
Posted on 1/30/21 at 8:36 pm to CrawDude
*sigh*
thanks crawdude...
thanks crawdude...
Posted on 2/1/21 at 10:51 am to CrawDude
What can i get at the big box stores...Pre & Post for Bermuda?
Posted on 2/5/21 at 9:57 am to CrawDude
My yard is about 6 month old centipede. It's done pretty well this winter, only a few small clover and dollarweed patches.
Do you think it would be best to over seed to help thicken it up as it is a little thin, or stick with Pre emerg?
Thanks as always for the help.
Do you think it would be best to over seed to help thicken it up as it is a little thin, or stick with Pre emerg?
Thanks as always for the help.
Page 3 of 4
Popular
Back to top
Follow TigerDroppings for LSU Football News