The burrowing behaviour of C. destructor is a cause for concern for farmers. Yabbies are capable of digging very deep burrows which can be 50 cm to two meters deep depending on the species. Burrows are connected by access shafts to the water. In the event of the water drying up, the yabby is able to survive over summer in the burrows. Unfortunately, this behaviour may also destroy the integrity of dam walls causing problems for farmers