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americanlawn

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Discussion starter · #1 ·
Asking for your opinion. What's your current (favorite) product for control of both crabgrass & nutsedge??? (both are emerging here right now)

Thanks in advance. :waving:
 
#3 ·
I just read solitare is coming out in a liquid formulation,
might try that out,

i use q4 spiked with dismiss currently,

i also saw nufarm has a new formulation with fenoxaprop and dicamba and fluxopyr i think
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#4 ·
Are you asking for one product that will control both at the same time. Solitare does that. I have used it and it does the job. It has Sulfentrazone and Quinclorac in it. I have also use each separately' which is less costly.
 
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#7 ·
southernturfpros said:
Celsius and dismiss
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Are you mixing them together? Spot spray or blanket? Surfactant?

I just finished a round with celcius/prosedge/MSO surfactant and have seen some yellowing in my Bermuda....especially hrbrid 419. No problems yet that I know of in centipede or other warm season turf.
 
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#10 ·
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#13 ·
Make sure your combo products containing sulfentrazone actually 'control' nutsedge rather than just 'suppress'. What suppress means is it will knock down the foliage this season but come next season the nutlets will spring right back up again.
 
Discussion starter · #14 ·
I was using Q4 & spiking with Dismiss or Drive (depending on the lawn). I also used Drve 75 DF & spiking it with either Basagran or Dismiss (depending on the lawn).

Here's what I'm finding out:

Quinclorac is best for crabgrass control
Sulfentrazone is best for nutsedge control
With both the above, it's recommended to add surfactant

Q4 Plus:
8.43% Quin
0.69 Sulf
(Q4 only "suppresses" nutsedge)

Dismiss contains 39.6% Sulf

Drive contains 15.93% Quin

Drive 75 DF never failed me regarding killing crabgrass. A newer better formulation of Drive is now the XLR8 (liquid).

It's no wonder Q4 was a disappointment for me cuz it's active ingredients are WEAK.

I need to order product, and I think I know what I have in mind. Just waiting for my rep to call back.

thoughts?
 
#15 ·
I use .6 oz of Celsius and .180oz of dismiss per 4 gallon backpack. As long as I spray it in moderation, it won't burn Bermuda or zoysia. It will kill and thing in warm season turf in 4-5 days, except Dallas grass. If it gets in the 90's I'll splash some iron in with the mix. Better mix than tribute total, tribute total takes to long to show effects for my liking. A lot cheaper too!!!!
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#16 ·
Drive with mso is the best for crab
Dismiss is the best for sedges

Solitaire did good on sedges...horrible on crab....
Q4 plus sucked except on broad leaves

I just mix drive with dismiss and threesome if the lawn needs all three...otherwise individual
 
Discussion starter · #17 ·
Solitaire = 18.75% sulf (sedge control), but Dismiss contains twice as much. quin (crabgrass) = 56.25% (3 times as much AI compared to Drive.

I'm confused. Anybody else? :laugh:
 
#18 ·
americanlawn said:
I was using Q4 & spiking with Dismiss or Drive (depending on the lawn). I also used Drve 75 DF & spiking it with either Basagran or Dismiss (depending on the lawn).

Here's what I'm finding out:

Quinclorac is best for crabgrass control
Sulfentrazone is best for nutsedge control
With both the above, it's recommended to add surfactant

Q4 Plus:
8.43% Quin
0.69 Sulf
(Q4 only "suppresses" nutsedge)

Dismiss contains 39.6% Sulf

Drive contains 15.93% Quin

Drive 75 DF never failed me regarding killing crabgrass. A newer better formulation of Drive is now the XLR8 (liquid).

It's no wonder Q4 was a disappointment for me cuz it's active ingredients are WEAK.

I need to order product, and I think I know what I have in mind. Just waiting for my rep to call back.

thoughts?
Click to expand...
Guys, youÂ’ve really got to read and understand the labels to be functional in this business. Also, understand that the amount of active ingredient is the key, not just a product rate.

Sure, Q4 Plus has 8.43% quniclorac and 0.69% sulfentrazone, but itÂ’s a liquid formulation. It contains 0.75 lbs of quinclorac/gal of Q4 and 0.06 lbs of sulfentrazone/gal of Q4. If you apply at 8 pints Q4/A (top rate on the label), you get 0.75 lbs quniclorac/A and 0.06 lbs sulfentrazone/A.

Q4 Plus (8 pts/A) = 0.75 lbs quinclorac/A
= 0.06 lbs sulfentrazone/A
Drive 75 (1 lb/A, the rate on the label) = 0.75 lbs quinclorac/A
Dismiss (4 oz/A) = 0.125 lbs sulfentrazone/A

So, Q4 Plus (8 pts/A) delivers the same amount of quinclorac as most labeled Drive applications, but half the sulfentrazone of most Dismiss applications. This is pretty common. You can get sedge activity with less sulfentrazone than 0.125 lbs/A, but you canÂ’t get crabgrass activity with less than 0.75 lbs/A of quinclorac. When PBI/Gordon put the higher sulfentrazone rate in with the other ingredients, they saw too much turf injury. But, when they backed off the sulfentrazone, there was less turf injury and decent sedge control.

Make sure youÂ’re looking in the right spot when comparing active ingredients on labels. For liquid products, the percent of ai is meaningless for our purposes. You need to look at the weight per gallon of the ai.

This really is basic stuff and should have been covered in your commercial applicator exams.
 
#19 ·
surprised no one said tenacity yet. I like idiot proof. If its a grass and doesnt belong, tenacity treats it. Why use old chemistry like quinclorac and add ?? when one product does it. you really think your guys are mixing exactly right in the field? not likely
 
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#20 ·
americanlawn said:
Solitaire = 18.75% sulf (sedge control), but Dismiss contains twice as much. quin (crabgrass) = 56.25% (3 times as much AI compared to Drive.

I'm confused. Anybody else? :laugh:
Click to expand...
Much like I said for the other poster, you really need to learn how to read and understand labels. This should have been covered in your commercial applicator exam. This is why we have those exams: so hacks who donÂ’t know what theyÂ’re doing donÂ’t screw stuff up.

Solitaire is a dry product with 0.1875 lbs of sulfentrazone and 0.5625 lbs of quinclorac in each pound of product. If you apply the max rate for cool season grasses (20 oz/A; or 1.25 lb/A), you are applying 0.23 lb/A sulfentrazone and 0.7 lb/A quinclorac. The max rate for Dismiss is 0.25 lb/A sulfentrazone and the max for Drive is 0.75 lb/A quinclorac. So, they put out just about the same amount of active ingredient.

When you see a 32-0-0 fertilizer and a 16-0-0, do you think that the 32%N product is necessarily better, since the other one doesnÂ’t have as much N in it?
 
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Marine03112
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