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View Full Version : crabgrass - what to spray now?


meets1
08-21-2009, 11:29 AM
Suddenly having issues with large estates where crabgrass is just poppen. Anything else out there to spray with to get results NOW!

Turf Logic
08-21-2009, 04:46 PM
What type of grass is it in?

FdLLawnMan
08-21-2009, 08:27 PM
He is in Iowa so it has to be cool season grasses. I would use Drive with Methylated Seed Oil. You could use Drive XLR8 but I am not familiar with it.

Grandview
08-21-2009, 09:22 PM
I would spray water and tell the customer it slowly fade in the next three weeks.

Camden333
08-21-2009, 09:27 PM
I have good results with Trimec Plus.

fastcat
08-21-2009, 10:33 PM
Camden,
What rate per gallon are you mixing. I keep hearing about trimec burning.
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RigglePLC
08-21-2009, 10:39 PM
Go with Drive with crop oil or Lesco Hawkeye as a surfactant. However Drive is no longer available. You have to use the liquid Drive: XLR8--costs more. But you can use a wettable powder generic quinclorac, if you can find it. Get it now before it is fully mature.

meets1
08-21-2009, 11:01 PM
bluegrass. Been wet here all summer which is good for the mowing crews and cool. I think we have had a few 90 degree days but that is it - not complaining. But this crabgrass is just takiing off in areas. I'll spray them and collect the money but with a frost only 4-6 weeks out for me (usually) how much bang for the buck are my clients really getting?

I like the water idea!!

starry night
08-21-2009, 11:16 PM
Q4 herbicide from PBI Gordon = broadleaves plus quinclorac for post-emergent crabgrass (and nutsedge control, too) Works great for me.

naughty62
08-22-2009, 07:44 AM
We cut off the post em crabgrass apps off a couple days ago.drive with M.S.O. .On a dry day after the dew burns off .we are starting fall broadleaf /fert and over seeding on irrigated properties. If they are not regular valued customers they are S.O.L. . One app at earl stage should suppess it till the frost finishes it off ,but you loose prime overseeding time .uptake will be getting slower .but a guy does not really know what weather sept. is gonna bring .60 or90 degrees .

lawn king
08-23-2009, 10:39 AM
Here in the northeast, crabgrass is in its final stages. I started seeing the edges of the leafs turning purple last week. I will spray some xlr8 this week but thats about it for post control this season. 2009 has been the year of extremes for us. Extreme amounts of winter snow into extreme amounts of spring & summer rainfall into extreme late summer heat! Im afraid to look around the next bend for whats coming?

Hissing Cobra
08-23-2009, 11:35 PM
I would spray water and tell the customer it slowly fade in the next three weeks.

What would you charge for this?

superintendent
08-24-2009, 10:02 AM
I have not found a iron product that I can use that will not clog up my strainer or nozzle filters

milike
08-24-2009, 12:14 PM
What would you charge for this?

depend of i was to use bottle water or not..:nono:

americanlawn
08-24-2009, 09:12 PM
Spraying heavy with Q4, etc will turn it brown in a couple weeks, but..IMO it's nearly getting to the point where I would just let it die naturally, unless this is a valued customer who has mowed correctly, etc. Sometimes spraying for crabgrass right now is worth it (just to show the customer you care). That's where we're at for the next 2 or 3 weeks (Des Moines). In a week or two, we will stop spraying crabgrass for folks who routinely mow/weedeat at 1/2 inch along the edges -- at that point, we'll just give them a "fact sheet" that explains why THEY created the problem (and didn't listen to us or ISU).

Average first frost date in Sioux City is about Sept 22. But more importantly, the average "killing frost" in Sioux City is around October 1st -- 13th (when Mother Nature will kill it). My 2 cents.

JaysLawns
08-24-2009, 09:52 PM
using Q4 at the maximum rate of 3.0 oz/gal will fry it in 3 days

TMlawncare
08-24-2009, 11:32 PM
using Q4 at the maximum rate of 3.0 oz/gal will fry it in 3 days

I love that Q4, I just hate the price. $275 for a 2.5gal jug and 3oz/gal hurts the profits, however I think it still a deal compared to Drive.

JaysLawns
08-27-2009, 11:38 PM
I think i'm going to cut back to 2.8/oz its just drive and surge mixed together.

bx24
08-29-2009, 08:19 PM
Here in the northeast, crabgrass is in its final stages. I started seeing the edges of the leafs turning purple last week. I will spray some xlr8 this week but thats about it for post control this season. 2009 has been the year of extremes for us. Extreme amounts of winter snow into extreme amounts of spring & summer rainfall into extreme late summer heat! Im afraid to look around the next bend for whats coming?

I just looked up the price of the new Xl drive...not bad at all.. About the same as the old.

GrazerZ
08-31-2009, 08:44 PM
I have been using drive xlr8 in backpacks and my zspray with good results. nIce product.