Poplar catch 22

[Mick Stockbridge]

I knew me old book would come in handy sometime.

[sandspider]

Now that's a proper book. Thought the saltpetre was to blow it up for a second!

[farmer rod]

We coppiced a bit with some polpar and it suckered like a forest in the hay field next door, but mowed it off a couple of time and it doesnt come back anymore.

 

Not so easy if in woodland perhaps, just grazing with sheep would be better.

 

ps like the book, proper job

[APC]

Could you fell the ones you want then use an excavator to dig a trench around the retainers and install a root barrier, then treat any regenerated poplar without worrying about it affecting the retainers?

[Paul Cleaver]

fell the trees - any suckers treat with a contact only herbicide not a translocated herbicide - may need future applications

[daltontrees]

Youy can't get saltpetre, it's what is used to make gunpowder and it is banned. The drilling and smouldering trick with it used to work just as well with Sodium Chlorate but the killjoy brigade banned that too. I used to trace shallow roots out and drill them too, put a bit of Sodium Chlorate in the hole and plug it with putty. Absolutely devastated the roots.

 

But I guess the issue here is whether by poisoning the felled trees you will poison the perimeter ones. You can't , anuy subsurface connection between them will be trivial if the perimeter ones are by now established trees in their own right.

 

Besides, an experiment of mine showed that the glyphosate absorption applied to cambium of recently (and I mean within 5 minutes of felling) cut stump will only travel downwards about 25cm, just neough to kill off everything that might sprout from the stump but not extending to roots. They die because they get no more food.

 

Felled poplar roots will sucker up to 30 metres away for about a year, just go back and finish them off as soon as they appear and before they get woody, they'll soon give up. Instead of removing suckers, they can be sprayed with Roundup or wiped with a systemic herbicide gel.

[Paul Cleaver]

Youy can't get saltpetre, it's what is used to make gunpowder and it is banned. The drilling and smouldering trick with it used to work just as well with Sodium Chlorate but the killjoy brigade banned that too. I used to trace shallow roots out and drill them too, put a bit of Sodium Chlorate in the hole and plug it with putty. Absolutely devastated the roots.

 

But I guess the issue here is whether by poisoning the felled trees you will poison the perimeter ones. You can't , anuy subsurface connection between them will be trivial if the perimeter ones are by now established trees in their own right.

 

Besides, an experiment of mine showed that the glyphosate absorption applied to cambium of recently (and I mean within 5 minutes of felling) cut stump will only travel downwards about 25cm, just neough to kill off everything that might sprout from the stump but not extending to roots. They die because they get no more food.

 

Felled poplar roots will sucker up to 30 metres away for about a year, just go back and finish them off as soon as they appear and before they get woody, they'll soon give up. Instead of removing suckers, they can be sprayed with Roundup or wiped with a systemic herbicide gel.

 

thanks for that -

[Mortimer Firewood]

Wait a few years and go through them with a sub soiler or and plough thats what farmers do round here.

[bolthole]

You can buy Potassium Nitrate....

 

1kg Potassium Nitrate / Saltpetre Crystalline Salt (KNO3) (CAS No: 7757-79-1) | eBay

 

....and I'm DEFINITELY going to give that a try!!!

[unimog 72]

covering with chip wast of time let em sucker sparay with round up at 10%in spring or grind em out but you will have to be throught