"bdowling_on_foxhill" wrote ...
I have a horrible problem with Sumac, which has infested a hill and
completly obstructs our view. There are hundreds of them. Is there any
other suggestion for solving this large scale problem.

I killed ours by cutting it down and drilling holes in the stump in which we
poured neet SBK Brushkiller, this did for the roots, suckers and all.
However, it would help if you would give an indication of your location.

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Regards
Bob
In Runnymede, 17 miles West of London