PDA

View Full Version : Quackgrass herbicide (new)


americanlawn
04-13-2007, 06:32 PM
"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.

jrc lawncare
04-13-2007, 06:52 PM
"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.

jrc lawncare
04-13-2007, 07:00 PM
Sure as hell aint cheap, though. $93.00 my cost, 1.25 oz. Ouch!!!:dizzy:

Victor
04-13-2007, 11:54 PM
"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.

Grandview
04-14-2007, 03:51 PM
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.

ThreeWide
04-14-2007, 06:36 PM
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.

FERT-TEK
04-14-2007, 07:55 PM
I am going to check out the monsanto website but is it also recommended for crab?

FERT-TEK
04-14-2007, 07:59 PM
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

ThreeWide
04-14-2007, 08:02 PM
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.

Turf Troll
04-14-2007, 08:38 PM
http://www.pbigordon.com/professional/turfornamental.php

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

Grandview
04-14-2007, 11:02 PM
I did not see quack grass on the Q4 label under weeds controlled.

ThreeWide
04-15-2007, 08:33 AM
The originator of this thread was indeed correct.

Even though it is not on the label, Monsanto has this on their website indicating how quackgrass is controlled in bluegrass. It does say that some injury will occur on the bluegrass.

http://www.monsanto.com/ito/pdfs/Certainty_Quackgrass_KY_2007.pdf

It seems that this product was put on the market before they realized all capabilities. Apparently there is still a good amount of research being conducted with it.

Grandview
04-15-2007, 11:25 AM
I talked to Joe Downs the midwest Monsanto rep. He also indicated a label for bluegrass/perennial rye mixtures was coming out. The rate was going to be limited to .5 oz/acre. He indicated there was little room for error with this product. There is not a 2X or 3X rate safety factor with Certainty. He indicated that bluegrass could not take much more than the .75 oz rate. Better have your equipment calibrated with this stuff. He said you will get less yellowing of bluegrass if night time temps were above 50 degrees and daytime in the 70s.

ThreeWide
04-15-2007, 11:42 AM
FWIW, I have been trying Certainty to control some clumpy Perennial Rye in my Bermudagrass at home. The lawn was overseeded two Fall seasons ago, and some of it managed to survive the Summer even after being treated with Revolver a couple of times. I have sprayed the areas with Certainty at least 2 times since late Winter.

Just as I thought it was gone, the cool weather has seen it return. At this point, I'm not sure what to say about its ability to control Perennial Rye. But then again, my relative who is a superintendent says that old Perennial Rye returning is also problem for them on the course despite spraying Roundup in the Winter.

americanlawn
04-15-2007, 05:02 PM
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.
Sorry Victor. I searched this site and found nothing for quackgrass herbicides.

I was merely trying to help others on this site who were searching for advice regarding quackgrass. I sincerely apologize if I offended you. I did not mean to.

I am glad to see others who appreciated my post. I did not mean to cause a problem.

americanlawn
04-17-2007, 08:30 PM
LESCO told me this product was new.

I hope I did not offend anyone, and I hope me credibility is not in question.

Just trying to help others, american.

Screw Loose
05-01-2007, 03:27 PM
LESCO told me this product was new.

I hope I did not offend anyone, and I hope me credibility is not in question.

Just trying to help others, american.

Helped me out!

Thanks!

americanlawn
05-01-2007, 07:45 PM
Hi screw loose - I just hope this product works.

I'm looking forward to the Iowa/Wisky football game this fall. Should be a good one.