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View Full Version : Lesco Three Way on Staugustine


JoeTurf
10-08-2011, 09:21 AM
I'm up in NE Oklahoma where we don't see Staugustine too often. It's my first. Around here we use Simazine and Three Way for our fall treatments on warm season grass with excellent results. I'm getting conflicting answers when asking around what broadleaf control I can use. Lesco rep says to use my normal Simazine/Three way mix and I didn't think Staugustine could take 2,4D. He said I'll get a little yellowing which would be ok since the color it turning anyways in Oct. Thanks for any advise.

jvanvliet
10-08-2011, 12:30 PM
NE Oklahoma gets a little cold for St. Augustine, are you sure that's what it is?

I wouldn't use 3 way on St. Agustine, mix blade & quicksilver for safe treatment on St. Agustine.

Landscape Poet
10-08-2011, 01:16 PM
Broadleaf = manor when I was doing my own lawn. Cost effective and great control. I have heard missed reviews on celsius
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JoeTurf
10-08-2011, 06:20 PM
Yeah it's definately St. Augustine. I thought it was the 2,4D in the 3 way that hurt it. Trimecs label, which is like 3 way, says its safe. 3 way label says its ok on Dormant St. Augustine. Thanks for the replies. I'll put down something that is for sure safe.

ted putnam
10-08-2011, 08:28 PM
Spraying St. Aug with a full rate of 3-way is a "crap shoot". I've seen it knock it back for months and I've seen it have no ill effects. I am limited on tank space so what I do is mix with a half rate of 3-way and a full rate of simazine, spray the few St. Augs I have that day first then adjust my 3-way rate for typical bermuda/zoysia spraying the rest of that day. This has worked great for me for years.

Turf Dawg
10-08-2011, 09:38 PM
I use it at the rate it calls for southern grasses 80 degrees and below. Over 80 I switch to celcius.

JoeTurf
10-08-2011, 09:42 PM
Ted Thanks. Sounds good. There's only around 3ksf of Staugustine on this property but I want to make sure it comes back in the spring. We don't see it around here much and I've never treated it before.

JoeTurf
10-08-2011, 09:52 PM
Turf Dog thats exactly what my Lesco rep said after he asked a rep in SE Texas. I think I'm just going to go with a lower rate on it and I can alway back pack a few areas in Nov. if needed.

greendoctor
10-09-2011, 01:47 AM
I have never seen anything less than a high rate of amine based herbicide + surfactant kill weeds here. This is more than what st augustine will deal with and not stunt or turn yellow. I will second the metsulfuron + Quicksilver or even Celsius + Quicksilver. One more thing, both of those herbicides stay in the soil to affect weeds attempting to germinate after the first generation has been killed.

Ric
10-09-2011, 04:03 AM
..



I am going to weigh in on this one because in the past I have recommend Three Way on several occassion. I am also going to give away one of my secrets. When applying 3 Way us the 3/4 oz rate as per label, BUT USE 5 GALLON OF WATER PER THOUSAND for no burn on St A and good weed control. The lower percent per volume of water saves the St A any rel stress.



..

jvanvliet
10-09-2011, 07:47 AM
Celsius does OK in full sun, high heat, just really slow. Have to be careful about concentrations too, max can cause the St. Agustine to shock and go into decline with the unintended consquence of the broadleaf taking over again. I know this because I was agressive with an application on my own lawn :cry:

I've always had excellent results with Blade & Quicksilver, but the stuff is so expensive.

I'm afraid of 2-4-D in St. Augustine personally, although Ric is usually right on the money. Sure wish I could get some 40% Atrazine.

Ric
10-09-2011, 08:00 AM
Celsius does OK in full sun, high heat, just really slow. Have to be careful about concentrations too, max can cause the St. Agustine to shock and go into decline with the unintended consquence of the broadleaf taking over again. I know this because I was agressive with an application on my own lawn :cry:

I've always had excellent results with Blade & Quicksilver, but the stuff is so expensive.

I'm afraid of 2-4-D in St. Augustine personally, although Ric is usually right on the money. Sure wish I could get some 40% Atrazine.

jvanvliet

Legal applicators can get 4L Atrazine, it is a RUP that only a CPO can legally buy. You must also keep records of every oz and where it was applied. If you can't Buy 4L Atrazine then you are not a licensed applicator.


I for got to add Read the Label about Heat restrictions on using 3 way herbicide, you can fry a lawn in the summer.

tillerstick
10-09-2011, 10:11 AM
St. Augustine has been taken off the label of Lesco three way in all but a very few applications. Read the label as you are probably not in compliance of the law if you are spraying St. Augustine and/or centipede.

jvanvliet
10-09-2011, 07:26 PM
jvanvliet

Legal applicators can get 4L Atrazine, it is a RUP that only a CPO can legally buy. You must also keep records of every oz and where it was applied. If you can't Buy 4L Atrazine then you are not a licensed applicator.


I know :cry:

Ric
10-09-2011, 07:45 PM
I know :cry:

jvanvliet

Don't cry to me if you aren't Certified. I not only paid my dues but I also offered to help others get Certified many time right here on Lawnsite.

jvanvliet
10-09-2011, 07:55 PM
Yah, Ric, I know. Wasn't crying to you, just sad cause I can't get a safe and effective broadleaf control agent for my properties because of H/O abuse & mass hysteria started by the Euro Enviro Tofu Farting Fairies and picked up on by the Enviro Tofu Farting Fairies here. :waving:

Ric
10-09-2011, 08:27 PM
Yah, Ric, I know. Wasn't crying to you, just sad cause I can't get a safe and effective broadleaf control agent for my properties because of H/O abuse & mass hysteria started by the Euro Enviro Tofu Farting Fairies and picked up on by the Enviro Tofu Farting Fairies here. :waving:

Yea Right, you never would apply Chemicals illegal on your customer's yards.

ted putnam
10-09-2011, 09:04 PM
I have never seen anything less than a high rate of amine based herbicide + surfactant kill weeds here. This is more than what st augustine will deal with and not stunt or turn yellow. I will second the metsulfuron + Quicksilver or even Celsius + Quicksilver. One more thing, both of those herbicides stay in the soil to affect weeds attempting to germinate after the first generation has been killed.

I agree with you. In fact, I use metsulfuron for new sales that are primarily St. Aug with heavy weed infestation. My earlier post was meant mainly as a course of action I take, out of convenience, for a Fall pre-emergent app for a St Aug lawn that has been under my control for awhile and has had a major portion of the difficult to control weeds already eliminated.

jvanvliet
10-10-2011, 05:18 AM
Yea Right, you never would apply Chemicals illegal on your customer's yards.

Actually Ric, I don't. We have grown too much in the last several years for me to get busted for something stupid. I recommend a local pest control co. with whom I have a relationship. I do the ornamentals and the fertilizer for which I am licensed.

My wife and I own several properties which I treat in addition to those of our parents, to the best of my knowledge not illegal.