Tree stump poisoning

[Drikonus]

Hi guys I was wondering what type of trees should be poisoned before grinding out. There are some resilient trees like robinia and they can still produce shoots from their roots even after grinding out. Any other trees I should be aware of?

 

How long to wait for the poison to take effect? I usually wait 6 weeks. I heard 2 weeks but that might not be enough?

 

Thanks for the replies.

 

L

 

I'm sure he's only using it to assist in composting the stump.

 

If I were doing it I'd have to get PA1 and resurrect my drench gun, a shot of glyphosate followed by a plug of clay should be effective.

 

I do stump grinding so I don't really poison the stumps. started this thread as my mate wanted to know if the stumps should be poisoned before grinding...