Summer is the time of year when people are easily lured to yard and estate sales. The finds can be great ranging from antiques to nearly new items. One thing to keep in mind, however, is when choosing wooden items like furniture and frames, and baskets, always scout for signs of insect infestation such as holes or sawdust.

During the summer months in Florida, our office receives phone calls from garage and estate sale bargain hunters looking for help to treat their furniture against insect infestations. This usually coincides when they bring their purchases home after having sat in their garages or from previous infested locations and brings it in the airconditioned home.

Unfortunately, standard homeowner’s insurance does not cover their removal. These pests are active all year in Florida and may be dormant up to five years. Infestations develop slowly, but wood can be reinfested year after year. Once they are established in your home; they are harder to get rid of.

Damage

These beetles are harmless to humans and do not bite. Don’t let that fool you, as powderpost beetles can be serious pests of your structures! The larvae of these beetles live in and consume dry, seasoned wood. This includes:

• beams, sills, joists, studs, subflooring and plywood
• both hardwood and softwood furniture, wall paneling, window and door molding, and hardwood floors

Signs

One way to determine feeding damage is to look for signs on your furniture.  Recent holes (ranging in size from 1/16”-1/8” in diameter), powder-like dust, sawdust or gritty frass, or by the sound of feeding that may be heard (clicking or rasping sound) are all indications that you have an infestation. I have used my stethoscope here……….

Prevention

• Beetles will not infest wood that is painted, varnished, waxed or similarly sealed. Once treated, seal the holes to prevent reinfestation.
• Replace localized damaged wood with clean, treated wood
• Spray or paint insecticide to penetrate into infested wood to create a protective barrier.

Treatment

To remove the pest, the lumber can be kiln-dried for hours PRIOR to using in construction (shelves, woodworking, flooring etc…). Borate wood preservatives treatments such as BoraCare®, and Tim-bor® Professional, with low-toxicity products can be used. Follow label directions for use.  If you have an isolated piece of furniture that needs treatment, you can contact your local pest control company that offers fumigation chambers. They tend to charge by the pound and offer the most effective treatment within 12-24 hours. Compare prices as it can be costly.  For more information on powerpost beetles, contact your local UF/IFAS extension office.

Resources

https://edis.ifas.ufl.edu/publication/IG119

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