This map represents the termite probability and we disagree with it. Arizona is shown as only “moderate” when in reality if you have lived in Arizona for any length of time you will agree that Arizona is ‘Very Heavy” with the subterranean termite being well established and very prevalent. To a lesser degree we experience Drywood Termites in various locations in the state.
Drywood Termites: This species of termite burrows into the wood after a nuptial flight. Pairing swarmer’s create or start a colony inside the wood usually entering in small gaps such as 2x 4’s nailed together. Drywoods will remove each other’s wings and burrow into the wood leaving very fine sawdust called frass. Drywood colonies are slow to establish, once established they will start to kick pellets, these pellets are their waste and resemble the color of the wood they are ingesting. Fumigation is recommended for heavy infestations or inaccessible infestations. Localized treatment is very effective as long as you can access the galleries in which the termites are working and living. Drywood termites do not need any contact with the soil and can survive within the wood with at least a 10% moisture content.
Subterranean Termites: This species which is very active in Arizona lives in the soil and randomly forges for food. Desert Subterranean Termites will randomly forge their way into your building seeking any material containing cellulose (their food). These termites can enter through a crack no greater than the width of a dime on edge. Tell tail signs include “mud tunnels or mud tubing”. Subterranean termites live in the soil and under most conditions need contact with the soil for moisture. Treatment methods include soil treatment, baiting and foaming wall voids at points of activity. Preventative methods include installing a physical barrier and / or a liquid barrier during the construction of the structure.
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