Print This Page

Bark Lice

Bark lice - closeup



Bark lice prefer to make their home in the bark of hardwoods,
especially oak trees. (Photo Courtesy of Texas Cooperative Extension)


Common Names: Bark Louse, plural - Bark Lice


Scientific Name: various, Order Psocoptera, family Psocidae


Adult: less than 1/4"


Identification: Adult looks a little like brown lacewing. Protective silvery web on the trunks of trees.


Biology/Life Cycle: Silvery web covers the trunk and limbs of trees in the early fall. It happens very quickly, often overnight. More prevalent in south Texas than elsewhere. Web usually lasts only a few days then disappears.


Habitat: Limbs of shade trees.


Feeding Habits: Feeds on fungi, scale, aphids and other insects on tree bark of oaks and other shade trees.


Economic Importance: Beneficial, feeds on troublesome insects.


Natural Control: Biodiverse gardens.


Organic Control: None needed.


Insight: Nature will supply these beneficial insects where needed. No need to purchase and release them.








  Search Library Topics      Search Newspaper Columns