brown sap

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  1. Ernesto

    Brown, sticky sap on leaves

    What is this? I saw this stuff on three of my paphs and they’re all close to each other, so I suspect whatever it is to be transmissible. Conditions in my grow space: Humidity 60s-70s Temperature 70s F Top watering every 4-5 days, then fertilize 75ppm K-Lite Lights on 16 off 8