Desert Drywood Termites

SCIENTIFIC NAME

Marginitermes hubbardi

APPEARANCE

The desert drywood termite is also called the light western drywood termite. This common name comes from the appearance of the winged reproductive life stage, or alate. The alates are yellow to light brown and, including wings, are about ½-inch long. Termite soldiers are large and equipped with mouthparts that help them defend the colony against predators. The workers are actually the nymphal stage, and they feed the colony and perform the maintenance work needed to keep the colony functional.

BEHAVIOR, DIET & HABITS

Desert drywood termites readily invade, feed on and damage wooden structures, but more often they will feed on trees that grow along canyon riverbeds and large desert cacti. The likelihood for damage to homes is highest in areas where suburban neighborhoods expand into the termite’s normal habitat. In addition to homes, the desert drywood termite damages poles, firewood and posts.

Often drywood termite identification relates to the appearance of drywood termite damage, described as looking like the termite has eaten across the wood grain, not with the wood grain. Also, their galleries are very smooth and without soil. Their fecal matter generally takes on an oval shape and is firm with six concave sides, while reaching no more than 1/32 inch long. These pellets are excreted from the wood by being pushed out through kick-out holes located in the infested wood.

REPRODUCTION

Swarmers fly at night and normally just after a rain and are most active from May through September. After swarming, they shed their wings, mate and find a location to begin a new colony.

SIGNS OF AN INFESTATION

Indicators of desert drywood termite activity include the presence of swarmers (alates) or their shed wings and finding small piles of termite fecal pellets that were pushed out of infested wood. Seeing swarmers or their shed wings inside the house is not a good sign since it indicates a colony that could be located inside the home.

DISTRIBUTION

The desert drywood termite generally inhabits arid portions of Arizona and southeastern California.

OTHER INFORMATION

Your pest management professional (PMP) is the best source of information and resolution if you believe a problem with desert drywood termites exists inside your home or another location on your property. Your PMP will inspect for and identify the termite species, plus locate the source of the problem. Of course, he will provide a control plan that may involve alternatives such as fumigation or replacement of infested wood.

Termite Control

How do you know if you have termites?

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Why should you be worried?

Termites cost Americans more than $5 billion in damage each year and most insurance plans don’t cover the damage.

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