Originally Posted by shaggy
Without a professional to help I see perfect situation to get killed. And don't say go find one cause i've looked before none in my area.
It sounds like it needs to be moved but in the meantime you may want to help your horse and you. Try using approach and retreat to get him over it. There has to be a distance where he isn't scared of it, go just inside that distance so he gets just a little nervous and start moving his feet. Doesn't have to be hard or fast, just keep him moving. Once he shows some sign of relaxing...walk him away from it. Do that several times till that distance has no effect on him, then move closer and repeat. It may take awhile but you can them over nearly anything by being patient and using approach and retreat.
My daughters horse had an unrealistic fear of plastic bags and tarps. We got him over his tarp issue the same way...and he did the same thing, ran away, shook all over etc. Apparently he heard the rumor going around the pasture...tarps eat horses!
have fun and be careful.