As spring and summer roll around, homeowners’ thoughts turn to landscaping and beautifying the yard. Many homeowners like to mulch the landscaping plants for many reasons; it keeps down weeds, retains moisture, and looks good, among other things. However, mulch is not a completely innocent substance. Mulch is a wood product, and unfortunately, there are insects that can damage property that love to live in mulch.
The first is carpenter ants. One of their key attributes is that they chew up tons of wood into fine sawdust that rots, turns into compost that in woodsy areas is great for new growth. However, when the wood they have chewed up is the wooden floors, siding, or other parts of the house, they are no longer beneficial. They hollow out the wood of the dwelling in order to build nests. It may be years before the ants create a lot of damage to a dwelling, from doors and windows that stick to floors that slope, ceilings that sag, and walls that bulge, but the infestation may not be noticed until the damage is done.
Like carpenter ants, termites are beneficial when in the right places. In nature, they break down wood that adds nutrients to the soil. Unfortunately, when the termites are in your home they cause damage similar to that of carpenter ants; the termites eat the wood weakening structures and even chewing on furniture. The termites eat the wood leaving voids, and in severe cases can leave just a layer of paint or very thin wood remaining. A hollow sound when knocking on a wall can be a clear indication of termites.
While carpenter ants and termites live in the wilds of suburbia, one thing they both have in common is a fondness for mulch. Termites are attracted to its ability to retain moisture, as are the ants. Carpenter ants will appear around dishwashers, sinks, and other areas where pipes could leak. Resolving any leaks helps deter the ants.
Insect damage is not covered by a standard homeowners policy. Damage caused by insects, as well as birds and rodents is not covered. This kind of damage is wear and tear and insurance pays for accidental losses such as tornadoes or fires.
So what’s a homeowner to do? This is where prevention comes in. While useful and pretty, the proper application of mulch is important. A layer of gravel is recommended next to the dwelling if there is any wood there. Insects aren’t attracted to rocks. Mulch should be no more than three inches deep; both ants and termites like to nest in it, so don’t have mulch deep enough for them to have a fancy bachelor pad. Use stone instead of railroad ties for borders; stone is cold and hard, and railroad ties are warm and rotting, basically an engraved invitation for insects to come settle in.
Shade is great but there is such a thing as too much. An area that is shady all the time will retain moisture that attracts ants and termites; you don’t want the ground to stay too wet. Once in the mulch, termites and ants are that much closer to your home so that feasting on it is the obvious next step. Some mulches are treated to deter insects, but over time, that treatment will eventually wear off.
Insurers want to provide coverage for well-maintained homes, and that often includes landscaping. While termite and ant damage are not covered by the homeowners policy, a few easy steps can ensure that the more common bugs find your yard less attractive than the neighbor who has several inches of mulch up against the house and under large trees where the sun rarely falls.
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