Phalaenopsis spots on leaves and strange growth

[Piao Liang]

I checked if there was anything in the leaves but I couldn’t see anything except for one leaf which had small brown specks. I checked them under the microscope and I couldn’t find insects. I probably washed them away with the miticide? However, I could see fungi mycelium. I think that it was first a flat mite problem followed by (or together with) a fungal infection. We will see after the Captan and fungal treatment.