Convert Particle systems of Blender to Omniverse

I have a scene in Blender with trees and grass placed on the ground using particle systems. However, when I export it as a USD file, the scene doesn’t appear as expected—instead of trees and grass, I only see hair particles in Omniverse.

Do you have any idea how I can convert the scene to Omniverse? I’d prefer to have the scene use a Point Instancer in OV. I’ve tried all the export options for USD, but none seem to work.