POWDERPOST BEETLE LIFE STAGES
Females mate often during their lifetime and the total number of eggs laid per female is about fifty. Powderpost females prefer to lay eggs on hardwoods rather than softwoods and prefer rough wood surfaces. Eggs hatch in approximately eight days and after hatching, larvae bore into the wood tunneling in the direction of the grain. One to five years later, adult beetles begin emerging from infested wood in early spring and continue through mid-summer. The life span of an adult beetle is generally a few months to a year, with few living more than a year.
POWDERPOST BEETLE THREATS
Powderpost beetles have the ability to bite, but rarely do since they spend most of their lives inside of wood. The real threat of this beetle is their ability to damage wood. The most commonly infested woods include ash, oak, hickory and walnut. Powderpost beetle damage is second only to termites in the United States. Powderpost beetles cause millions of dollars in damage each year as they infest dry seasoned wood.
POWDERPOST BEETLE EXTERMINATION AND CONTROL
The key to avoiding serious issues from powderpost beetles is early detection. Homeowners are more likely to see evidence of wood damage than the beetles themselves. The first evidence of an infestation is usually very fine sawdust on or beneath wood and small holes, 1/4 to 3/8 inch in diameter where mature adult beetles have emerged from the wood.
- Always inspect wood prior to purchase. Do not purchase wood with damaged surfaces or with present exit holes.
- When purchasing wooden objects, check to make sure the wood has been kiln-dried or that it has been sanded and has a varnished finish. Apply shellac or varnish to the surface of untreated wood before bringing it into the home.
- Avoid using old lumber from improperly maintained wood yards or piles where these beetles may be hiding.
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