Johnson grass and roundup?

[split toe]

What strength are you mixing the roundup for johnson grass?

 

[THE LLC]

I use 1 quart per 25 gallons of water. Works good if johnson grass isn't too old.

 

[Blizzard Ridge]

Good luck with killing that crap. I sprayed my beans 3 times last year in one of my plots and never did get it all killed.

 

[mattpatt]

My Grandpa used to use a wick applicator attached to the front of his tractor and would drive down the rows of beans. Since the Johnson grass was so much taller it worked pretty good


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[Brushpile]

If Johnson Grass is coming up from seed, glyphosate will kill it. If the JG has established rhizomes, glyphosate will produce a top kill and the JG will regrow after every spraying.