I used to be able to pick all the asparagus I wanted by walking the back roads, no more. Since the townships have started spraying the banks along the road to kill the weeds, no more asparagus.
Asparagus is resistant to 2-4-D. In a home garden, using 2-4-D will kill the broadleaf weeds and any grass killer with Sethoxydim will take out the grass. Asparagus is resistant to both. Do your spraying after the harvest season is over.
One time I got the bright idea of cutting it all below the ground level and covering the stumps with dirt. Then spray the weeds with roundup. Don't do that.
Thank you very much!
I had been planning to do that very thing with Glyphosate.
Figured it wouldn't hurt anything, no residual and all.
We have a patch about 80' long, 2 rows.
20 years old, various Jersey varieties, Martha Washinton, and purple.
Some of it is getting old I'm afraid. Plus, the last couple years it's not
been weeded and munched well. Was looking for an easy shortcut.