Booklice feed on starch and fungi on books. Which statement is true?

• A. 1 false, 2 true
• B. 1 is true, 2 is false
• C. Both are false
• D. Both are true

Answer: (D)

Booklice thrive in damp environments where mold and mildew grow on paper and glue, and they actually feed on that fungal growth. They also eat starch-containing materials that are common in books, such as the paste, sizing, and bindings. Because both fungi and starch-based materials are present in books, they have food sources for both on the same habitat. That’s why both statements are true. In practice, controlling booklice involves reducing humidity and mold, which removes their fungal food source, and addressing starch-containing materials in bindings to limit further feeding opportunities.