Strange brown growth and dark spot on Cattleya leaves
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  #1  
Old 04-20-2021, 12:08 AM
ergovolts ergovolts is offline
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Strange brown growth and dark spot on Cattleya leaves Male
Default Strange brown growth and dark spot on Cattleya leaves

I'm relatively new to orchids and one of my new plants has some strange growths on it that I can't identify. Does anyone know what this is and how serious a problem it might be?
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Old 04-20-2021, 09:27 AM
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Strange brown growth and dark spot on Cattleya leaves Male
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Welcome to the Orchid Board!

That looks like old damage from scale insects. I would first spray the whole plant and medium with 70% alcohol (rubbing alcohol.) Keep it away from other plants for a few weeks. Do some reading here about scale. The Search function is in the top maroon menu.
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Old 04-20-2021, 12:52 PM
ergovolts ergovolts is offline
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Wow, they did a number on it. Hopefully it's just old damage. Should I still be able to see the scale pest? Will using a higher %alcohol be an issue? Thanks for the help!
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Old 04-20-2021, 02:45 PM
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There may be so few now they're hard to see. I would dilute down to 70%.
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