Which of the following is true about Carpet Beetles?

The statement that only the larvae cause damage to natural fibers is accurate. Carpet beetle larvae are known for their feeding habits, specifically targeting natural fibers such as wool, silk, and other animal-based products. This feeding behavior is what leads to noticeable damage in carpets, upholstery, and clothing. The larvae possess strong mandibles that enable them to effectively chew through these materials.

In contrast, the adult carpet beetles primarily feed on pollen and nectar, rather than textiles or fibers. This distinction is important because it emphasizes that damage is chiefly a concern during the larval stage. Understanding this lifecycle aspect is crucial for effective pest management, as addressing the larvae's presence can prevent extensive damage to natural fiber items in homes and businesses.

Other options may create confusion about the adult's role or the activity levels of the beetles during different seasons, further reinforcing the significance of focusing specifically on the larvae when discussing damage to household materials.