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TRUE POWDER POST BEETLE TRUE POWDER POST BEETLE TRUE POWDER POST BEETLE TRUE POWDER POST BEETLE

Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR

1.Antenna- short, 2 segmented club 6.Thorax TRUE POWDER POST BEETLE 1.Antenna- short, 2 segmented club 6.Thorax TRUE POWDER POST BEETLE
2.Eyes- compound 7.Petiole- none 2.Eyes- compound 7.Petiole- none
3.Head 8.Abdomen- large 8 3.Head 8.Abdomen- large 8
4.Legs- 6 9.Color- brownish to black 4.Legs- 6 9.Color- brownish to black
5.Wings- covered, hard elytra 10.Other 5.Wings- covered, hard elytra 10.Other
Life Cycle Life Cycle
They mate soon after exiting infected wood, and between 15-20 eggs They mate soon after exiting infected wood, and between 15-20 eggs
are laid in wood galleries about a week later. The eggs will hatch in one are laid in wood galleries about a week later. The eggs will hatch in one
to three weeks. Larvae go through several molts while eating wood right to three weeks. Larvae go through several molts while eating wood right
away, and build a pupal chamber where they take two weeks to a month 4 away, and build a pupal chamber where they take two weeks to a month 4
to become adults. The whole life cycle is completed in 9-12 months. Photo Courtesy of UNIVAR to become adults. The whole life cycle is completed in 9-12 months. Photo Courtesy of UNIVAR
TRUE POWDER POST BEETLE TRUE POWDER POST BEETLE
Actual size 1/4” Actual size 1/4”
These beetles are named because they reduce the hardwoods that they infest to a fine powder, which is ejected These beetles are named because they reduce the hardwoods that they infest to a fine powder, which is ejected
from an exit hole. They are small, only about 1/4th inch long, and are a reddish, dark brown or black color. They from an exit hole. They are small, only about 1/4th inch long, and are a reddish, dark brown or black color. They
prefer to infest hardwoods, and are often found in flooring. This beetle will reinfest, if the wood’s moisture and prefer to infest hardwoods, and are often found in flooring. This beetle will reinfest, if the wood’s moisture and
starch content is high enough. starch content is high enough.
BLACK POLYCAON BLACK POLYCAON BLACK POLYCAON BLACK POLYCAON

Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR
1.Antenna- 3 segmented club 6.Thorax BLACK POLYCAON 1.Antenna- 3 segmented club 6.Thorax BLACK POLYCAON
2.Eyes-compound 7.Petiole- none 2.Eyes-compound 7.Petiole- none
3.Head 8.Abdomen- flattened body 8 3.Head 8.Abdomen- flattened body 8
4.Legs- 6 9.Color- dark brown to blackish 4.Legs- 6 9.Color- dark brown to blackish
5.Wings- covered, hard elytra 10.Other- pitted exterior 5.Wings- covered, hard elytra 10.Other- pitted exterior
Life Cycle Life Cycle
Eggs are laid directly on or in the infected wood products. Larvae hatch Eggs are laid directly on or in the infected wood products. Larvae hatch
and burrow deeply into the wood, and stay there for at least a year while and burrow deeply into the wood, and stay there for at least a year while
developing. They leave an exit hole when emerging, usually the first 4 developing. They leave an exit hole when emerging, usually the first 4
sign of the infestation. Every September the adults emerge from the sign of the infestation. Every September the adults emerge from the
infested wood, looking for a new habitat. infested wood, looking for a new habitat.
Photo Courtesy of UNIVAR Photo Courtesy of UNIVAR
BLACK POLYCAON BLACK POLYCAON
Actual size 3/4” Actual size 3/4”
These beetles are about 3/4th inch in size, and obviously of black color. They infest just about any wood, espe- These beetles are about 3/4th inch in size, and obviously of black color. They infest just about any wood, espe-
cially softwoods and new construction materials, and will attack cupboards, cabinets, furniture, and especially cially softwoods and new construction materials, and will attack cupboards, cabinets, furniture, and especially
plywood. They will also get into trees--both dead and living, but will not re-infest wood once they have left. plywood. They will also get into trees--both dead and living, but will not re-infest wood once they have left.

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