Hello and thanks for your inquiry. Unfortunately we do not currently have a pest control expert through MSU Extension on this platform. However, avoiding any chemical/poison rodent control products should be avoided around pets. Using mole-specific kill traps would be the safest way to only target moles and avoid any harm to pets. You can also try using snap traps for the voles, but it will likely be less effective if they are spread over a large area. 

Sorry we can't offer more detailed solutions at this time. 

Best,