I use Mojave 70 EG herbicide on my arena and driveway. It lasts a full year. I use the Mule and the 25-gallon tow behind sprayer spray bar for the arena and driveway and the wand to spot spray corners and such. Starting this year I will spray fence lines with it. I mix in glyphosate at 4% for a quick kill as the Mojave takes about a month to kill everything. Just don't get it on something you want to stay alive.
I use mojave as well. Best I have found (at an affordable price) that actually makes a difference. I have tried the RM43 stuff as well as pramitol 25e. I think the Mojave is the best bang for buck. Might have to spot spray a few areas later in the year, but for the most part it does keep control for a year. Instead of spraying every month with roundup
I recently switched to Roundup Ultra Max 3. quicker knock down.
Roundup "brand" has several catchy labels but ultimatly there is little difference among them. Just varying the concentration of glyphosate. So you use more or less of the concentrate to get your desired rate. But I havent seen "ultramax" anywhere here in the states. And google seems to indicate its an Australia thing.
But it does read just like Power-max.
Roundup has:
Roundup Pro with 50.2% glyphosate in Isopropylamine salt form
Roundup promax 48.7% Glyphosate in potassium salt form
Roundup powermax3 with 51.2% Glyphosate in potassium salt form
Roundup quickpro with 73.3% Glyphosate in ammonium salt form with a 2.9% Diquat kicker.
The "salt" form that the GLY has is subject to debate. Like potassium salt form has a smaller molecule....that some say it works better. But ultimately it comes down to how much glyphosate "acid" is in the mix. And the potassium salt form has more acid. Which is ultimately what the glyphosate is.
For example.....
RU Pro 50.2% has 5# per gallon active ingredient......and 3.7#/gallon of acid
Promax 48.7% has 5.5# active ingredient per gallon.....and 4.5#/gallon of acid
So even though the roundup pro seems more concentrated at 50.2%.....the Promax is actually the "hotter" chemical being potassium salt form.
And for comparison...
Powermax3 is 5.88#/gal active ingredient and 4.8#/gal of acid
Quickpro is a dry power so things are compared in pounds and not gallons.
They also have surfactants....(which make them work better) that most generics dont have.
The whole "idea" behind roundup was always about it being a slow kill. Because if you burn the vegetation too quickly the roots wont die and weeds come back. Slow kill is a good thing. But people want instant results.
If you want a quick burndown....use something with diquat. Roundup quickpro is what most landscaper type companies use because of fast results. And thats what customers want. But its $150/jug of the stuff. and 1.2oz/gal mix....and that jug will make about 90 gallons of mix.
If you really want to be frugal....you can buy a quart of diquat, and 2.5gal of generic glyphosate and make your own roundup "quickpro" for less than $100 vs the $150 quickpro. And that "less than $100" will make almost double the mix. So its a good 3x cheaper.
That is what I do. Generic roundup spiked with diquat on areas I dont want to use mojave because of runoff concerns....or around the electric fence encircling the garden, etc. But I already buy diquat normally.....in 37% form. (takes 2/3 of a teaspoon or 0.1oz per gallon) for mix. But I already have it on the shelf for treating pond weeds
At the end of the day, there is alot of playing with numbers and science and marketing involved. IF whatever you are using is JUST glyphosate with no other kickers......there isnt one better than the other if they are mixed at the SAME ACID rate. Any differences you may see with generic vs name brand, or promax vs pro vs powermax vs regular, etc etc.....those differences are either in mix rates no being the same or some having surfactant and others not.
