Cattleyas in SH showing white substance
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Pleurothallis has white substance in potting media Cattleyas in SH showing white substance
 
 
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Old 02-22-2023, 03:54 PM
Dusty Ol' Man's Avatar
Dusty Ol' Man Dusty Ol' Man is offline
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Default Cattleyas in SH showing white substance
Here are four photos of the issue. The first two are a mini Catt and the second two are a standard Cattlianthe. Both in semi-hydroponic-culture. Both receive the same care. Water with rainwater. Using K-lite @~100ppm weekly, Quantum Total weekly, and Kelpak monthly. There is a white substance which has formed on some of the surfaces above the substrate.










The mini has two new growths approx 2 months old that have yet to put out new roots.

Temp range 65-85°f. Humidity 55-70%. There are small fans in the grow tent that move air lightly.
Anyone have an idea what I'm looking at?
Last edited by Dusty Ol' Man; 02-22-2023 at 04:06 PM..
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