fugicide for Angraecoids?

Can anyone recommend an active ingredient that is proven safe on Aerangis and other Angs? I've heard that they can be sensitive to certain chemicals. I don't currently use anything, but I probably should. I've seen some black spots here and there on them. Also I lost a new growth on a Psychopsis to rot, so I should use something. I'd like to avoid using different things on different plants if possible. thanks, MB

I've used Daconil on everything, and have never experienced any problems. Just keep the stuff off of buds and blooms or you'll burn them.

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Louis J. Aszod

Thank you Louis. I appreciate the info.

are you sure it's a fungus rot?

i've had good results conquering bacterial rot with 3% hydrogen peroxide (the kind you buy at the drug store) poured directly over the plant.

that is now the way i test anything that starts to look suspicious, if it fizzes then it's bacterial. if it doesn't fizz, then i'm in trouble. i have some funginex at home, but i don't know if that's even safe to use on orchids (it's for black spot on roses apparently)? i'm also completely clueless as to dosage for that stuff too.

in short, i hope your problem is really bacterial and you can solve it with some judiciously applied peroxide!

--mo--

Funginex is safe to use on orchids. I have used it many times in the past. There are a few other systemic products I want to buy but their name escapes me.

what dosage do you use mike?

--mo--

I have not found it to be particularly useful. I have used about 3 fungicides and all need constant treatmeant. Maybe this is just the way it is.

I just followed the directions for roses. As always, try to keep it off any buds or flowers.