Round up effectiveness not up to par?

I’ve noticed no matter what I use the effectiveness wears off after awhile. Roundup, ground clear, etc.

Maybe the rain making everything grow twice as fast including my lawn.

Be sure your using 41% glyphosphate at 2 oz per gallon of water. You can go a little stronger.

In places Ryegrass is becoming immune to Glyphosphate so it does lose its effectiveness. You can try a post selective herbicide like Clethodim EC at 1 oz per gallon of water, but must use an oil with it. I mix 1 oz of mineral oil per gallon of water with the Clethodim EC.

Ranger Pro, Mr. Gruber

About a month ago I sprayed glysophate with surfactant and it worked very well. I’m sure I mixed it on the strong side of the instructions.

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Maybe the rain making everything grow twice as fast including my lawn.

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This is actually the ideal time to use glyphosate. Of course you don't want it to wash off but glyphosate works better the faster plants are growing. Faster growing = quicker death. Slower growing = slower death.

Definitely weaker than the past mixes. Just stuns the weeds

Gasoline

I started buying the stuff from tractor supply and mixing it stronger than usual. Seems to be working fine. It’s also that with all this rain, other weeds sprout up in the sprayed areas faster.

I use Ranger Pro with a squirt of Dawn for each gallon along my pasture fence lines.
Works well, but I think all this rain makes new growth pop up a lot quicker.
Sprayed twice this year already, where I usually just spray twice a year.