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Old 04-18-2013, 08:50 PM
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premierlawncaremi premierlawncaremi is offline
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Reduce mixing rates when tank mixing?

When tank mixing two chemicals such as a 3-way (1.5 oz/K) and Drive (1.45 oz/K) do you need to reduce the rates of each chemical or would you keep it the same so it would be a total of 2.95 oz/K? Any help would be greatly appreciated, this has always confused me as labels don't specify!
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Old 04-18-2013, 11:46 PM
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The label is the law!
The label tells how much of what chemical you can partner up with and what rates.
As far as me using--Prodiamine and lets say Vessel..........I use the labeled rates. As using herbicides with different modes of action isn't uncommon, the label will direct you to do a compatibility test. As far as using a reduced rate.........it depends on the label. Barricade is one that has reduced or split app rate charts. If the label shows it, then you can do it. Lets keep things in line so we don't lose any more herbicides to misapplication practices.
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Old 04-19-2013, 07:34 AM
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Why would you blanket spray drive?
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Old 04-19-2013, 07:42 PM
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premierlawncaremi premierlawncaremi is offline
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Why would you blanket spray drive?
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Not doing a blanket app..
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Old 04-19-2013, 08:06 PM
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Originally Posted by Efficiency View Post
Why would you blanket spray drive?
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When you have a massive CG outbreak.

If you read the label also, Drive has a relatively broad spectrum of control for other weeds also and a long residual.

Had to blanket spray a lawn with drive a few years back and got super killer control on a host of other weeds.


......
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Old 04-19-2013, 08:08 PM
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Quote:
Originally Posted by Think Green View Post
The label is the law!
The label tells how much of what chemical you can partner up with and what rates.
As far as me using--Prodiamine and lets say Vessel..........I use the labeled rates. As using herbicides with different modes of action isn't uncommon, the label will direct you to do a compatibility test. As far as using a reduced rate.........it depends on the label. Barricade is one that has reduced or split app rate charts. If the label shows it, then you can do it. Lets keep things in line so we don't lose any more herbicides to misapplication practices.

From what I'm recalling from our recent pesticide tests.

You can mix chems even if the label has no specific instructions.

If you have doubts, then call the maker of the chem.

But you must do the compatibility/jar test to make sure they will mix correctly. I've seen some chems in compatibility tests do some crazy things.




.........
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Old 04-19-2013, 08:25 PM
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premierlawncaremi premierlawncaremi is offline
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Quote:
Originally Posted by White Gardens View Post
From what I'm recalling from our recent pesticide tests.

You can mix chems even if the label has no specific instructions.

If you have doubts, then call the maker of the chem.

But you must do the compatibility/jar test to make sure they will mix correctly. I've seen some chems in compatibility tests do some crazy things.




.........
So what I'm asking...if the compatibility test passes then do I reduce rates of each chem??
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Old 04-20-2013, 10:24 AM
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Quote:
Originally Posted by premierlawncaremi View Post
So what I'm asking...if the compatibility test passes then do I reduce rates of each chem??
This is my answer,

No, use the recommended calibration rates for each chem.

The only time I would reduce either chem would be if each chem had one active ingredient that was the same. Then at that point, you would reduce the amount used of each to compensate for the max application rate for that single active ingredient that was in the mix.

With the Three way and Drive, if I'm not mistaken, they are completely different formulations. Drive is a Carboxylic Acid. (same type of carbon chain that Imprellis was based off of).


The only thing I might worry about is the non-ionic surfactant that is needed for Drive to work effectively. I would look into your 3-way and make sure that is compatible with it. Or call the manufacture and make sure it is.


......
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Old 04-20-2013, 10:53 AM
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Quote:
Originally Posted by White Gardens View Post
This is my answer,

No, use the recommended calibration rates for each chem.

The only time I would reduce either chem would be if each chem had one active ingredient that was the same. Then at that point, you would reduce the amount used of each to compensate for the max application rate for that single active ingredient that was in the mix.

With the Three way and Drive, if I'm not mistaken, they are completely different formulations. Drive is a Carboxylic Acid. (same type of carbon chain that Imprellis was based off of).


The only thing I might worry about is the non-ionic surfactant that is needed for Drive to work effectively. I would look into your 3-way and make sure that is compatible with it. Or call the manufacture and make sure it is.


......
Thanks, that answers my question! I've used Drive before with no surfactant or any additive at all and had great results...
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Old 04-20-2013, 12:16 PM
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I'be personally have had less than desirable results when not using the correct surfactant. Once I got the right one, I got great results, even with blanket apps at half the recommended rate. Though it wasn't a complete kill, it stunted the cg to a point where it couldn't thrive, and everytime it rained, it would stunt it again.
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