A question for high level wizards

[Shodo]

How would you rate the efficacy of the spell Disintegrate
in terms of using it to camp cash mobs (that are below the max level threshold)? Are there many camps/situations where it is useful, or does the challenge tend to be keeping adds/pops clear? Is it too easily resisted? Seems like fun to be able to just explode a mob as soon as it spawns, with no worry of roots breaking or mobs running off into a dungeon full of friends.