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  #1  
Old 07-18-2024, 03:13 PM
ColumbusOrchidGrower ColumbusOrchidGrower is offline
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Need help in identifying white spots on my Phal.
Default Need help in identifying white spots on my Phal.

I really need help in identifying these tiny white bumps appearing on some of the backsides of my Phaaenopsis leaves. I already know they're not spider mites and am pretty sure they're not mealy bugs. They actually appear to be inside (not on top of) the leaves. Otherwise, the plant looks healthy. Can someone please help me identify what the problem might be? Thanks!!!
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  #2  
Old 07-19-2024, 07:14 AM
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Need help in identifying white spots on my Phal. Male
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That’s a new one to me.

Welcome aboard!
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Old 07-19-2024, 08:37 AM
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Need help in identifying white spots on my Phal. Female
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Hmm... I just did some searching and one suggestion that came up was plant edema (which I had no idea was a thing). Wikipedia says it can be frequently confused with powdery mildew, and other pests, fungus, and viruses (Edema (plants) - Wikipedia

Caused by potentially excessive humidity, or any situation which causes the roots to take up more water than can be transpired by the leaves.

Interesting, but ofc just a guess!
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Old 07-19-2024, 06:14 PM
Blueszz Blueszz is offline
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I’ve seen edema on my Phals in the past but it didn’t look anything like that. It looked more like blisters.
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Old 07-19-2024, 06:31 PM
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Need help in identifying white spots on my Phal. Male
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Welcome to the Orchid Board.

What are your growing temperatures and humidity? Have a look with a magnifying glass if you have one.
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