Quote Originally Posted by Rosenstrauch View Post
You can macro it to drop on your location instead of your current target. Though that opens up the possibility of misclicking it and dropping the salt far away from the boss. Macroing it to target an enemy also runs into issues when that enemies is a boss like the Idol of Darkness—the boss's center is off-stage, and so the game thinks you're trying to place Salted Earth at an invalid location.

It's a really annoying ability, honestly.
Can you macro it to yourself instead?