One of my apple trees has white sticky stuff on the trunk (it's a 2 yr. old tree about 3 ft. high). How do I get rid of it?
Apple Tree Fungus
Certified GKH Gardening Expert
This could be a fungus or insect infestation.
Here are some links for you.
Use Neem Oil as a treatment since it works as both an insecticide and fungicide.