Bark Lice

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.