Success is highest in spring and fall, especially after rains. In winter and summer, burrows are deeper and more difficult to locate. Mole traps produce quick kills and with reasonable caution, are safe for the user, pets and wildlife. Traps are usually set in surface burrows. Some of these burrows are used frequently by moles and others are travelled in only once.
Success is highest when traps are set in active burrows.
Burrows that are in disrepair or meander around the surface most likely are used infrequently. To find frequently used burrows, look for fresh sign and a burrow that either runs in a straight line, connects two mounds, or follows concrete sidewalks or other structures. If in doubt as to whether a burrow is active, flatten a small section with your foot. Moles quickly repair damage to active burrows. Setting a harpoon trap.