Havent had any problems with the oposum in my garden but do , from time to time, have problems in my grain bin. My answer is steel traps, or under another name leg hold traps. I use a rat & mouse bait in a large pan with the (two) traps outside the pans. The oposum has a leisurly gait and will wander into the trap usually both traps. Then the 22 cal. revolver does the finishing act. Yes they are classed as a fur bearer and have a season but my state permits certain property protection rights. guy1223@epsi.net Guy R. Murray