@serenesurface-- I don't mind the needles. I actually think that a larch is pretties when the needles have turned yellow in fall. And it adds such a nice contrast in the yard, and goes well with other fall colors.
I realize the needles can be annoying if you don't want to leave them there and have to clean them. Have you thought about making mulch with the needles with a compost machine? They might not be the best mulch material alone, but you can mix them with other plant materials like leaves and cones to make a nice mulch to use in the garden. My neighbor does this and is happy with the results.