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Old 04-13-2007, 06:32 PM
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americanlawn americanlawn is offline
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Quackgrass herbicide (new)

"Certainty" by Monsanto claims to kill it without killing Kentucky bluegrass.

I started this new post because quackgrass is a huge problem with no good solution, and it seems nobody else on this site is aware of it.

(if you try & it works, you owe me a six-pack)

Check Monsanto's website for how & when to use it. LESCO sells it.

It came on the market late last fall, so little is known in field trials.

Basically -- spray the quackgrass when it's actively growing (spring or fall).

Follow-up treatments may be needed. It may also yellow out the bluegrass for a short time.

It comes as a granular product similar to "Manage" in a small plastic bottles.

Mix it with water as well as a spreader/sticker.

I'm thinking the quackgrass must be tall, then use a fine mist when you spray it (just like nutsedge).

Call your local LESCO dealer, and also see Monsanto's website.

I'm gunna try it soon.

30 years in the lawn care industry. I hope soon to become a senior lawn site member. Good luck.
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Old 04-13-2007, 06:52 PM
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jrc lawncare jrc lawncare is offline
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Quote:
Originally Posted by americanlawn View Post
"Certainty" by Monsanto claims to kill it without killing Kentucky bluegrass.

I started this new post because quackgrass is a huge problem with no good solution, and it seems nobody else on this site is aware of it.

(if you try & it works, you owe me a six-pack)

Check Monsanto's website for how & when to use it. LESCO sells it.

It came on the market late last fall, so little is known in field trials.

Basically -- spray the quackgrass when it's actively growing (spring or fall).

Follow-up treatments may be needed. It may also yellow out the bluegrass for a short time.

It comes as a granular product similar to "Manage" in a small plastic bottles.

Mix it with water as well as a spreader/sticker.

I'm thinking the quackgrass must be tall, then use a fine mist when you spray it (just like nutsedge).

Call your local LESCO dealer, and also see Monsanto's website.

I'm gunna try it soon.

30 years in the lawn care industry. I hope soon to become a senior lawn site member. Good luck.
I see it's registered in NY. Gonna have to check it out.
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Old 04-13-2007, 07:00 PM
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jrc lawncare jrc lawncare is offline
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Sure as hell aint cheap, though. $93.00 my cost, 1.25 oz. Ouch!!!
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Old 04-13-2007, 11:54 PM
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Victor Victor is offline
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Location: Columbus, OH
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Quote:
Originally Posted by americanlawn View Post
"Certainty" by Monsanto claims to kill it without killing Kentucky bluegrass.

I started this new post because quackgrass is a huge problem with no good solution, and it seems nobody else on this site is aware of it.

(if you try & it works, you owe me a six-pack)

Check Monsanto's website for how & when to use it. LESCO sells it.

It came on the market late last fall, so little is known in field trials.

Basically -- spray the quackgrass when it's actively growing (spring or fall).

Follow-up treatments may be needed. It may also yellow out the bluegrass for a short time.

It comes as a granular product similar to "Manage" in a small plastic bottles.

Mix it with water as well as a spreader/sticker.

I'm thinking the quackgrass must be tall, then use a fine mist when you spray it (just like nutsedge).

Call your local LESCO dealer, and also see Monsanto's website.

I'm gunna try it soon.

30 years in the lawn care industry. I hope soon to become a senior lawn site member. Good luck.
It might be hard for you to believe Americanlawn, but there are more than a couple people on this site that already knew about it. I'm one of those people. Not bad for a "Senior Member" huh?
I've already put a bug in my supplier's ear to get some in for me as soon as he can.
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  #5  
Old 04-14-2007, 03:51 PM
Grandview Grandview is offline
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The stuff is not that expensive, about 51.00/acre. You only use .75 oz to .5 oz/acre. After talking to the Monsanto rep I am going to start at the .5 oz rate. and recommend double application plus fertilizing.
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  #6  
Old 04-14-2007, 06:36 PM
ThreeWide ThreeWide is offline
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It has been sold in my area for at least the past year.

Even though it is pushed for the ability to control nutsedge, it is also labeled for controlling Poa and other grassy weeds in warm season turf. We also use it mixed with MSMA for Dallisgrass supression. Versatility is one of the reasons I like the product. There may be better solutions for nutsedge control, but none quite so versatile.

Since it cannot be used on Fescue, I doubt it will be extremely popular in the transition zone.
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Old 04-14-2007, 07:55 PM
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FERT-TEK FERT-TEK is offline
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I am going to check out the monsanto website but is it also recommended for crab?
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Old 04-14-2007, 07:59 PM
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FERT-TEK FERT-TEK is offline
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While searching for Certainty I found this link by OSU regarding all new products for turf
http://osu-ns03.cis.okstate.edu/tools/webtools.nsf/Images/Turf/$FILE/2005okpestconf.pdf
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  #9  
Old 04-14-2007, 08:02 PM
ThreeWide ThreeWide is offline
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Quote:
Originally Posted by FLC Dave View Post
I am going to check out the monsanto website but is it also recommended for crab?
Not on the label.

And also to the originator of this thread.....the label indicates that it controls bluegrass. The only cool season grass it is labeled for is bentgrass.

Last edited by ThreeWide; 04-14-2007 at 08:09 PM.
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  #10  
Old 04-14-2007, 08:38 PM
Turf Troll Turf Troll is offline
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http://www.pbigordon.com/professiona...ornamental.php

I think Q4 product from PBI Gordon does Quackgrass. crabgrass and yellow nutsedge
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