Welcome to OrchidTalk Orchid Forums
The Friendliest Orchid Community on the Internet!
OrchidTalk - "Bringing People Together to Grow Orchids Better!"
Let us help you grow your Orchids better; Join our community today.
Register or Login now to remove this advertisement.
This is a discussion on Help ID what this is. within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; Welcome back Angela - we've missed you. Treat it with fungicide and isolate it from ...
Welcome back Angela - we've missed you. Treat it with fungicide and isolate it from the rest of your collection in case it is something more serious.
in my opinion it is some thai strain of pseudocercospora or cercospora....i have had experience with this from imported thai plants and since they spray fungicide regularly you would expect a resistance to be built up to many fungicides....Phyton 27!!!!works for sure......
---------- Post Merged at 03:36 PM ----------
i feel your pain but Physan out of several fungicides seem to workkk...i had about 50 dendros that had it and all fine now...it retards the plants with that chlorotic nonsense...a friend of mine was fighting with a bacterial rhizome rot of cattleyas alliance...encyclias,catts and even a few reedstems perish within days..large plants lost forever....resistant Phytopthora from thailand once again nothing seems to be working...a new product called Kazumin from Japan recently shows some promise