How can you get rid of book lice in the house? - briefly
Reduce indoor humidity below 50 %, vacuum shelves, cracks, and book spines, then apply a low‑toxicity dust insecticide such as pyrethrin. Seal windows, store paper items in airtight containers, and repeat treatment weekly until no insects are observed.
How can you get rid of book lice in the house? - in detail
Book lice, also known as psocids, thrive in humid environments and feed on mold, fungi, and organic debris. Effective control requires a combination of sanitation, moisture reduction, and targeted treatment.
First, eliminate food sources. Remove piles of paper, cardboard, and cloth that have been stored for long periods. Vacuum shelves, baseboards, and cracks, discarding the bag immediately. Wash infested fabrics in hot water and dry on high heat.
Second, lower indoor humidity. Aim for a relative humidity below 50 %. Use dehumidifiers in basements, closets, and rooms with poor ventilation. Keep windows open when weather permits, and repair leaks in roofs, pipes, or windows promptly.
Third, apply chemical or non‑chemical interventions.
- Chemical options – Apply a residual insecticide labeled for psocids, following label directions precisely. Focus on cracks, crevices, and the undersides of furniture. Re‑treat after two weeks if activity persists.
- Non‑chemical options – Place silica gel packets or moisture‑absorbing crystals near vulnerable items. Use diatomaceous earth lightly dusted on shelves; it damages the insects’ exoskeletons.
- Heat treatment – Expose affected books or papers to temperatures above 120 °F (49 °C) for at least 30 minutes. Professional heat chambers can treat large collections safely.
Fourth, monitor progress. Set sticky traps near likely entry points and inspect them weekly. Continue vacuuming and humidity control for at least a month after visible signs disappear.
Finally, prevent re‑infestation. Store paper products in airtight containers, keep storage areas well ventilated, and maintain humidity levels year‑round. Regular inspections of vulnerable zones will catch any resurgence early.