Fusarium Wilt Blooper :-s

[Klueless_Kristie]

Hi all :-) I have been reviving an orchid greenhouse and when repotting have come across every disease listed in sue bottoms disease booklet (sadly I carry my iPhone with me now with this booklet to hold I against the plants to ID the problem)

Problem is my brain can only absorb do much and 'cut away infected tissue' is permanently etched into my brain.

So last week a plant fell apart, so I do cleaned the divisions cut off root rot and saw the purple ring tissue. So brain kicked in with 'remove infected....' Lol u get the gist. But rather than cut psuedobulbs until no infection I decided to carve away purple tissue until I got to creamy healthy tissue. Then I soaked in fungarid (systemic fungicide I got in bunnings).

So I didn't sanitise after each cut, and I think I'm a carver/whittler of wood (I know wtf *shakes head) and now I don't know what I should do?? I can't find a fusarium chemical treatment here in brisbane Australia because I'm new to this and I have no idea where they are sold despite hours list on google :-(

Please help

[WhiteRabbit]

From your description - I'm getting the impression that the rhizome is destroyed ... ? In which case, there's probably no hope for the plant ...

I've only trashed orchids that had fusarium, so I can't advise much on treatment.

There's this thread: http://www.orchidboard.com/community...-diseases.html
-there are other threads regarding fusarium
Orchid Board - Most Complete Orchid Forum on the web ! - Search Results

And from Orchid Diseases

Treatment: Discard infected part of rhizome and pseudobulb if the purple band is evident. Repot only the part of plant showing no purple discoloration. Drench sanitized plants in a thiophanate methyl (like Cleary's 3336 or Banrot) following label instructions. Be diligent in disinfecting growing area and cutting tools. Each time the cutting tool contacts infected tissue, it should be sterilized before making a second cut.

Hopefully others will chime in!