Keeping Spanish moss in my trees

How can I keep my Spanish moss in the trees around my pond?

I know it seems like a simple question but I’ve been adding Spanish moss around my pond for the last couple of years. It hasn’t spread much and typically just ends up falling out of my willows and other trees around my levee.

I’m in Southern AR and pretty much the extreme northern limit of Spanish moss, that said several lakes 15 miles or so away have tons of it.

I like like the look of it, most of my land is prairie/pasture that I’m working to restore really the only trees are a few on the fence line and around this 2 acre pond.