Key Features
- Small insects with angular wing marks
- Striped wingless immature insects
- Webs (only certain species)
Symptoms
Although this group of insects does not damage plants and shrubs, it can cause concern when groups of them are found on the bark. Some species may produce unsightly webs. As these insects chew on bits of bark, fungi, lichen, and other organic matter, none harm their host plant. Cerastipsocus venosus adults can be 1/4 in long and have distinctive wings. Wingless immature stages are striped.
Biology
Winged adults and wingless nymphs can be present all summer.
Management Recommendations
Control is not needed. This is not a pest. Barklice may be dislodged from bark by spraying with a strong stream of water from a garden hose.
Effective Pesticides
Pesticides are neither available nor recommended for managing this pest.
