Particles Dupli Group Visibility

I made a group of trees and made a hair emitter to populate a plane with the tees. I hid the original trees under the scene but haven’t applied the location so when I render they appear in the middle of the scene where I don’t want them. If I apply location the hairs drop down under the scene. How can I keep the original trees down there or make them not render while keeping the hairs emmited where they are ?


Put the group of objects on their own layer and don’t render that layer.
See https://www.blender.org/manual/editors/3dview/layers.html?highlight=layers

Thanks, thats exactly what I needed.