weed eaters work wonders...
....only joking, i do realize some spots may not be very practical to get a weed eater in....regardless of the grass, still some good pictures u got..

I've actually had the idea of using a weed-eater but my trail cam spot is .75 mile one way so that was thrown out fast

just take some rope, you can use a fallen limb or somethin like that too....point 75 through the bush is along way i know.