Hi All 
Saw a bit of discussion on copper based sprays.

I have found copper based sprays to be very irritating to orchid roots causing 
them the seal over and sometimes die back dramatically. 

Kocide was the offending product.

Monopodial orchids were the ones most affected as their roots seem to want to 
live outside the potting media.

Kind Regards,

Wayne Turville
Australian Orchid Nursery

Ph: (03) 5977-3122
Fax: (03) 5977-3350
Email: [EMAIL PROTECTED]
Web: www.australianorchids.com.au
          www.cymbidium.com.au
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