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: Order Psocoptera, family Psocidae
Size: 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.