Fungal growth is primarily consumed by which type of pest?

The correct answer is the foreign grain beetle, as this pest is particularly associated with the consumption of fungal growth found in stored grains and grain products. The foreign grain beetle thrives in environments where mold and fungi are present, often infesting materials that have been compromised by moisture, leading to fungal development.

In contrast, the granary weevil primarily targets whole grains and seeds, not specifically seeking out fungal growth. The Indian meal moth is known for feeding on a variety of stored food products, but it does not specifically rely on fungus as its primary food source. Silverfish, while they do feed on various organic materials, including starches and paper, are not specifically known for consuming fungal growth either. Thus, the foreign grain beetle stands out as the pest that is most directly associated with fungal consumption.