Spots

[bayswaterorchid]

Hi orchid lovers, does anyone know what these markings are? i suspect it's caused by fungal infection. We are heading into summer here in New Zealand and I am not entire sure whether high humidity or strong sun was the factor.
I have applied fungicides on affected areas but am not sure if that is going to solve the problem.
Any advice would be highly appreciated!

[bayswaterorchid]

In the past few days, these spots have become more noticeable and are about to spread all over.
I don't think my fungicide has worked at all. I don't know what other things I need to do to stop this damage?

[wolf71758]

Luckily, not much experience in this area. St. Augustine Orchid Society webpage has good section with photos that I use as a reference. St. Augustine Orchid Society - North Florida Orchid Growing

Good luck.
Bob
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[bayswaterorchid]

Thank you Bob, that website was very helpful. It looks like I need to keep applying fungicides and provide better air circulation.
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[cucubirds]

Isolate this plant as disease will spread from splashing of water from plant to plant. Use a good fungicide & spray once every three day or once a week. If it can be brought under control, you shouldn't see any spot on next new leave. The current spots will eventually blacken/dry & will remain on old leaves.

[bayswaterorchid]

Thank you for your advice, cucubirds.
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