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PSOCIDS OR BARK LICE
Protective silk webbing spun by PSOCIDS over the bark of an oak tree.
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| Species |
Several |
| Common Hosts: |
Rough-barked hardwoods
Palms |
Description |
Adult -- approximately 6 mm long; brownish-black body with white edges and stripes on wings; wings held roof-like over body.
Nymph -- similar to adult; wingless. |
Importance |
Large populations may produce a great amount of silk webbing on a tree, but no damage is done. Insects feed on fungi, spores, pollen, lichen, and other debris on a tree's bark. |
Signs
of Infestation |
Small portions or entire tree trunk covered with a fine silk webbing. Dark area on trunk or branch comprised of several hundred psocids or bark lice. |
Control |
- Use a garden hose and water to wash insects and silk webbing off infested trees. May need to repeat through the year.
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Bulletin No. 196-A | Printed October, 1983 |
Contact the
Forest Health Section
