What kind of pests? how to I kill them?
Have sticky leaves on one phalenophsis orchid, black tiny bug? Or scale, it seems like, on underside of leaves. I can clean it off with fingernail, but always comes back. How can I prevent this? I'm keeping this one separated from other orchids. Not happening on adjacent varieties of house plants in window.
Certified GKH Gardening Expert
Unfortunately your photo did not come through. I will be unable to identify your pest. It does sound like scale, by the description. This article will help: https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm