"Winston" wrote in message

but, I can draw one simple conclusion.

Without the whole story?

Yes, I'm rather intelligent.



In spite of what you say, she is not all that smart. Cutting something
that grows back is not a solution, no matter how good the tool.

You missed the part where she tried several applications
of a previously effective herbicide and will shortly test
another herbicide that is rumored effective against this
kind of plant?

The smart solution is to eliminate them with the proper herbicide or by
manually pulling the roots out. That is the only way to get a permanent
solution.

There's an echo in here!

Evidently, she did not use the proper harbicide or proper application. She
would do well to consult a professional or the local colege ag deparment or
similar service.



First prize would be to find a way to kill the seeds.
She's working on that.

It may be possible to pick many of the seeds on the plant or to treat them
with a pre-emergent solution. See above about consulting a pro.