[Market-farming] plastic mulch over johnson grass?

Bill Shoemaker wshoemak at illinois.edu
Mon Feb 23 14:26:09 EST 2009

>I've got an area of my gardens that has some johnson grass problems. I did some fallow tilling last summer, and I'm sure I've reduced it's vigor somewhat, but I doubt it's gone completely. I'm wondering if anyone has used plastic mulch in areas with Johnson grass? I am a little worried that it might just poke right on through?


We don't have Johnson Grass in northern Illinois. But I've experienced yellow nutsedge poking right through plastic mulch. It has a sharp point as it emerges and it just pierces the plastic. Hope that helps.


William H Shoemaker, UI-NRES
Sr Research Specialist, Food Crops
St Charles Horticulture Research Center
535 Randall Road  St Charles, IL  60174
630-584-7254; FAX-584-4610

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