Gleosporium fungicide for orchids?

[tropterrarium]

I had a plant pathology lab ID a fungus on my plants as Gleosporium. The list of suitable fungicides includes:

pyraclostrobin (Pageant® ), propiconazole + chlorothalonil (Concert®), cyprodinil + fludioxinil (Palladium®), and tebuconazole (Torque®).

Is anybody familiar with any of those and can either recommend one as orchid safe, or also indicate those that are not? Thanks.

[RosieC]

[WhiteRabbit]

again
Good luck!

[DavidCampen]

Originally Posted by tropterrarium

I had a plant pathology lab ID a fungus on my plants as Gleosporium. The list of suitable fungicides includes:

pyraclostrobin (Pageant® ), propiconazole + chlorothalonil (Concert®), cyprodinil + fludioxinil (Palladium®), and tebuconazole (Torque®).

Is anybody familiar with any of those and can either recommend one as orchid safe, or also indicate those that are not? Thanks.

I use pyraclostrobin and chlorothalonil on orchids and have not seen ill effects. I have not used any of the azoles e.g. propiconazole and tebuconazole as I have heard that they can exhibit phytotoxicity. I don't know anything about Palladium.

[tropterrarium]

Thanks David. Most helpful!