I have a problem that seems to eventually impact all my paphs and would like to better understand the cause, as shown in the pic the neck of the fans all seem to get this reddish rust marks that tends to eventually deteriorate the leaves. I've dealt with mealybugs (the white on the roots is remnants of a confidor tablet), and have seen spider mites time to time so am trying to control them, would the damage be attributed to them or is it a fungal issue that's the cause? Me and my paphs thank you.
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