When wood is infested by the beetles in this group, this outer shell is perforated with the exit holes of the successive generations of insects. These insects may be very damaging because they can reinfest timbers until the wood is completely hollowed out, leaving only a deceptive outer shell. These include the termites (order Isoptera), powderpost beetles (Lyctidae), false powderpost beetles (Bostrichidae), deathwatch beetles (Anobiidae), carpenter ants (Formicidae: Formicinae), and the oldhouse borer just mentioned. Other groups of insects can infest dry and seasoned wood. However, none of the above insects, except the cerambycid Hylotrupes bajulus (L.) (the oldhouse borer), reinfests seasoned lumber from which the adults have emerged. The larvae of some of these pests require many years to develop, and the adults may emerge from seasoned wood in buildings or furniture long after construction. Included among these insects are the bark beetles and ambrosia beetles (Scolytidae and Platypodidae), some weevils and snout beetles (Curculionidae), the flatheaded borers (Buprestidae), most roundheaded borers (Cerambycidae), some caterpillars (Cossidae), and the woodwasps (horntails) of the family Siricidae. POWDERPOST, FALSE POWDERPOST, AND DEATHWATCH BEETLESĪmong the wood-destroying insects there are a few species that attack healthy, living trees, but many more attack trees that are weakened by disease, fire, or old age, or are blown down or felled for lumber.ASSOCIATION OF WOOD-DESTROYING INSECTS WITH BACTERIA, FUNGI AND PROTOZOA.SUMMARY | Content of Chapter | Wood-Destroying Insects and Their Associations | TERMITESĭECAY FUNGI | POWDERPOST Beetles | FALSE POWDERPOST Beetles | DEATHWATCH Beetles | ROUNDHEADED Borers | FLATHEADED borers | BARK Beetles | AMBROSIA Beetles | WOODWASPS | CARPENTER Ants | CARPENTER Bees Walter Ebling Chapter 5 part 1 (pages128-167) Wood-Destroying Insects and Fungi in part 1
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