Is there a way to get LR to delete photos from my camera when deleting from lightroom?

Iphotos can delete from camera after improting. What would be amazing would be for LR to delete ONLY those that Ive deleted from LR. Is there a way to do this? I shot Birds at 20FPS and it just consumes a lot of memory. its teious to go back in and delte them ne at a time. THanks!