▁are ▁examples ▁of ▁invas ive ▁species ▁that ▁threaten ▁natural ▁forest ▁e cos ystem s . ▁ ▁In vas ion ▁and ▁control ▁ ▁Wood bor ing ▁be et les ▁are ▁commonly ▁detected ▁a ▁few ▁years ▁after ▁new ▁construction . ▁The ▁l umber ▁supply ▁may ▁have ▁contained ▁wood ▁inf ected ▁with ▁be et le ▁eggs ▁or ▁lar va e , ▁and ▁since ▁be et le ▁life ▁cycles ▁can ▁be ▁one ▁or ▁more ▁years , ▁several ▁years ▁may ▁pass ▁before ▁the ▁presence ▁of ▁be et les ▁becomes ▁notice able . ▁In ▁many ▁cases , ▁the ▁be et les ▁will ▁be ▁of ▁a ▁type ▁that ▁only ▁attacks ▁living ▁wood , ▁and ▁thus ▁in cap able ▁of ▁" inf est ing " ▁any ▁other ▁pieces ▁of ▁wood , ▁or ▁doing ▁any ▁further ▁damage . ▁▁▁ ▁G enu ine ▁inf est ations ▁are ▁far ▁more ▁likely ▁in ▁areas ▁with ▁high ▁hum id ity , ▁such ▁as ▁poor ly ▁vent il ated ▁craw l ▁spaces . ▁H ous ing ▁with ▁central ▁he ating / air - condition ing ▁tends ▁to ▁cut ▁the ▁hum id ity ▁of ▁wood ▁in ▁the ▁living ▁areas ▁to ▁less ▁than ▁half ▁of ▁natural ▁hum id ity , ▁thus ▁strongly ▁reducing ▁the ▁lik elihood ▁of ▁an ▁inf est ation . ▁Some ▁species ▁will ▁inf est ▁furn iture . ▁ ▁Some ▁be et les ▁in va de ▁wood ▁used ▁in ▁construction ▁and ▁furn iture ▁making ; ▁others ▁limit ▁their ▁activity ▁to ▁for ests ▁or ▁roots ▁of ▁living ▁trees . ▁ ▁The ▁following ▁lists ▁some ▁of ▁those ▁be et