However, you get your firewood there is a chance some small critters hitchhike their way into your home. These insects living in the firewood pose no threat to you or your home. They are either feeding on the wood, nesting or are overwintering under the bark.
The best way to stop insects from getting into your home is to store your wood outside until it is ready to be burnt. spraying the wood with insecticides will not have much benefit and is potentially dangerous. This would not go deep enough into the wood to reach the insects.
Two insects that may cause problems are carpenter ants and termites. These can affect the house if stacked against the outside walls.
wood that remains moist for a long period of time is a good place for carpenter ants to live. They do not feed on the wood but they hollow out pieces inside the wood for nesting. If the wood is bought inside the ants may warm-up and move from the wood however the likely hood of the ants nesting inside the house is slim. but stacking wood against your home may provide a route for the ants to enter your home.
wood that is stacked on the ground may be eaten by termites. There might be mud tunnels visible on the outside of the wood. Termites bought into the home in firewood can’t establish a new nest or damage your furniture. however, if the wood is stacked against the house this ould provide a way for termites to extend their feeding into your home.
If you find a termite infestation in stacked wood near your home then consult a pest management professional and have your home treated.
These beetles like dead or dying wood, this makes them quite commonly found in firewood. They tend to feed on wood in large groups so a log cut could contain hundreds of these beetles.
a lot of insects spend their winters under the bark of trees or in your woodpile. When bringing firewood into your home it warms the wood and these insects crawl out of the wood. Pillbugs, centipedes, millipedes, ground beetles are commonly found in firewood. They will not harm you or your house and need only be picked up and removed.