Oil Prune (Plum Oil) is effective as an attractant in badger traps, and also liked by a bear. The smell is nothing but a strong scent of plums.
Many who actively captures badger in traps like that just plums provide excellent catch performance. Problem with plums in a badger trap is that even rats will find them very desirable and often quickly eat up everything. Plums oil has the advantage that it can be applied directly inside the trap, preferably in front of relese plate. Applied offers it for long term let out a completely natural smell of plums that badger have big difficult to resist and therefore enters the trap, even if the remaining baits are eaten.