WOT!

Waste of time! It shows you the cron jobs, and you can delete them, but it won’t tell you what plugin they are associated with. If you want anything more than to simply view crons, then you have to purchase the premium version. The plugin WP Control does everything the free version of this plugin does, plus shows you what plugin/theme/etc. the cron event is associated with. This plugin is no more than a schill to purchase the pro version.