How to remove from scope when not in use in AngularJS?

I've setup a controller to tick every few seconds, which in turn makes a restful call to a backend api. Everything is working as expected, except when I navigate to another section (handled by a separate controller), the tick continues to fire.

Is it possible to remove the controller from scope entirely?

Here's a paste of my current controller:

myApp.controller('SupervisorController', function($scope, supervisord, $timeout) {

    $scope.supervisord = supervisord;

    (function tick() {
        $scope.supervisord.fetch();
        $timeout(tick, 2500);
    })();
});