Which method is NOT advisable for dealing with moisture issues in the basement before treatment?

Addressing moisture issues in the basement is crucial for effective pest prevention and treatment. Ignoring surface moisture is not advisable because it can lead to an environment that is conducive to wood-destroying pests, such as termites and carpenter ants. These pests thrive in damp conditions, and allowing moisture issues to persist can exacerbate infestations and structural damage.

On the other hand, checking for cracks, sealing foundation walls, and using dehumidifiers are proactive measures designed to eliminate both existing moisture problems and prevent future issues. Checking for cracks can identify potential entry points for water, while sealing foundation walls helps to create a barrier against moisture infiltration. Using dehumidifiers can effectively reduce humidity levels in the air, further mitigating the appeal of the environment for wood-destroying pests. Thus, ignoring surface moisture stands in stark contrast to these effective strategies, making it an unwise choice.