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If My Home’s Timber-Frame Remains Free Of Moisture Am I Safe From Termite Attacks?

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It is often claimed that termites require high-moisture conditions in order to survive, but this claim may seem dubious considering that several subterranean termite species have no problem surviving within Arizona’s exceptionally dry desert soil. While not all of the termite species in Arizona are considered pests to structures, the entire state is located within a geographic region where termite pest activity is considered moderate to heavy, and termites are considered the most significant indoor insect pests within the state.

Since termites are clearly abundant in the Sonoran Desert region of Arizona, they must find water somewhere. Since the sandy desert surface is cleary bereft of moisture, subterranean termites are able to establish colonies located far below the ground surface where adequate moisture can be found. The arid land subterranean termite species maintains a habitat in particular areas where soil contains a bit more moisture than can be found within the barren sandy landscapes that most people picture when thinking of the Sonoran Desert. This species can be found in nearly all areas of the state. The desert subterranean termite is the only subterranean termite species in Arizona that can withstand periods of drought within the hottest areas of the state. This species is the most common termite pest found within structures in Arizona, but unlike the arid land subterranean termite species, the desert subterranean termite species can only be found in the southern half of the state.

Subterranean termite species in Arizona can attack new homes where lumber is dry, as these species construct mud tubes that connect the ground soil to indoor structural wood. These mud tubes provide subterranean termites with direct access to soil where they can readily quench their thirst. Subterranean termites can establish a permanent infestation within indoor wood sources that have become heavily saturated with water due to plumbing leaks or seepage from rain water, making repeated trips to soil unnecessary.

Drywood and dampwood termite species do not make contact with soil; instead, colonies maintain a constant presence within single wood items, such as dead trees and logs. However, the swarming termites (alates) that emerge annually from drywood and dampwood termite colonies often squeeze into small cracks and pores within any area of a home’s wood exterior where they proceed to establish infestations that usually spread into a home’s interior timber-frame. Since these termites do not extract water from the soil, they can only survive within wood that contains adequate moisture levels. Most homes in Arizona contain wood that is moist enough to support drywood termite colonies, but dampwood termites require more water in order to establish an infestation, making dampwood termite infestations relatively rare in Arizona.

Were you aware that dampwood termites could infest homes in Arizona?

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