Which of the following pest control measures is necessary for handling wood-boring beetle infestations?

Fumigation for controlled areas is a critical pest control measure for managing wood-boring beetle infestations. This method involves sealing off a designated area and releasing a gas that penetrates wood and other materials where these beetles may be hiding. Fumigation is effective because it allows for deep penetration into the wood, targeting life stages of the beetles that may not be reachable with other methods like direct sprays. This can be especially important for wood-boring beetles, which can reside deep within the wood where traditional surface treatments would not be effective.

The approach of regular inspections without treatment does not address the active infestation and would only help in tracking pest presence without mitigating the problem. Similarly, using traps for monitoring is useful for understanding the extent of an infestation but does not contribute to controlling or eliminating the pests. Direct elimination with sprays might be effective in some scenarios, but it typically cannot reach the deeper infested areas that fumigation can, making it less effective for severe infestations.