Which pest is known to infest tobacco products?

The cigarette beetle is specifically known for infesting tobacco products. This small, brownish beetle primarily targets cured tobacco and can cause significant damage to stored tobacco leaves, raw tobacco products, and even packaged tobacco products like cigarettes. The larvae of the cigarette beetle feed on tobacco, leading to degradation in quality and economic loss for producers and retailers.

In contrast, the tobacco moth is also associated with tobacco but is not the primary pest affecting specific products like the cigarette beetle does. Leaf cutter ants and grain weevils are primarily associated with other plant materials and stored grain, respectively, rather than tobacco products. The unique relationship of the cigarette beetle with tobacco, especially in dried and processed forms, makes it the clear answer to the question regarding pests that infest tobacco.