johnson grass ARG!!!!!!!!!!

[shadowwalker37148]

Does anyone have a good remedy for this WEED?

[ceresone]

well, let me tell you, i'm too old to have made the mistake i did. several years ago, i planted broom corn, irritated me to no end when it came up the next 5 years, so i griped about it on another forum--described it, even. found out that i had a nice start of johnson grass in my garden!!
luckily, i found out in july, so i spread plasic over it for about 6 weeks, then, i carefully tilled the area, sifting out any roots i could find. only spring will tell how successful i was. luckily, the roots are pretty big--unlike that blasted bermuda grass that i've battled for 40 years. now--if theres a proven solution for that...........

[johno]

Roundup, or other product containing glyphosphate, works wonders, although it frequently takes a second application. If your "good" plants are already up, as I'm sure they are by now, you will need a helper to carry a shield for you. Also, NEVER use it unless the air is still, i.e., no wind.

[johno]

No takers on the roundup idea? Okay, it's probably not on the approved synthetics list, anyway...

Cardboard boxes from your local refridgerator store might be a more organic approach. They make a tough mulch and they cover a lot of space in a short amount of time.

[sparrowgrass]

I am pretty much anti-chemical, but the two exceptions I make are for johnson grass and poison ivy.

I am about ready to add spiny amaranth to that list, but I am not sure even chemicals can kill that stuff.