Laravel Query Tracer is a new package by Trevor Fitzgerald that allows you to find exactly where a query is being called in your app. It works by tapping into Laravel’s global query scopes to do a backtrace and find where a query originated.
The package ships with support for the Laravel Debugbar, Clockwork, or your own query listener.
Update: Barry vd. Heuvel, author of Debugbar, pointed out on Twitter that this is already included with it.