Relocation is not recommended unless the porcupine is being rescued.
Translocation is not recommended unless legal and the porcupine is being rescued.
Small-caliber firearms (.17 or .22) are the first choice for many operators where shooting is allowed and after safety concerns are addressed. The shot should be from close range and directed to the head. Operators often opt to use “low” power ammunition such as .22 -caliber “CB cap” or “Short” rounds. Follow all instructions for firearm safety at all times.
Check your state regulations regarding disposal of carcasses.