What environmental condition should be monitored to prevent subterranean termites?

• A. Soil moisture levels
• B. Air temperature
• C. Wind speed
• D. Humidity levels indoors

Answer: (A)

Monitoring soil moisture levels is important in preventing subterranean termites because these pests thrive in moist environments. Subterranean termites require a certain level of humidity and moisture in the soil for their survival and to build their colonies. High soil moisture can create ideal conditions for termite activity, as it provides the necessary environment for their nests and also aids in their foraging behavior.

Maintaining proper drainage and addressing leaks or excess moisture around structures can significantly reduce the chances of termites establishing themselves nearby. While air temperature, wind speed, and indoor humidity may have some influence on pest activity, soil moisture directly correlates to the habitat needs of subterranean termites, making it a critical factor in prevention strategies.