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Charlie Pridham[_2_] · 11-03-2020, 07:19 PM posted to uk.rec.gardening

On 11/03/2020 14:14, wrote:
On 11/03/2020 11:51, wrote:
I'm wondering whether it's OK to cover the ground of a large fruit
cage with wood chips that are partly from tanalised wood. A lot of
googling hasn't produced a clear answer, mainly because older
discussions date from when tanalisation used arsenic as one of the
components.
What's the opinion of those here?
A bit more info: the tanalising is Lonza Tanalith.
Active ingredients: 16.1% w/v (12.4% w/w) copper (Cu) present as a
cupric carbonate ethanolamine complex and 0.64% w/v (0.50% w/w)
tebuconazole.
pH 9.5 (5% w/v product solution)

Not a good idea, but you say partly? I guess if it was a small
percentage it may not be so bad but you would be worried about eating
the crop. I know because we have a fairly toxic arsenic layer in our
subsoil and don't grow root veg because of that, do grow stuff like
beans in raised beds.

--
Charlie Pridham
Gardening in Cornwall
www.roselandhouse.co.uk