Cryptotermes hermsi

Cryptotermes hermsi is a species of drywood termite belonging to the order Blattodea and the family Kalotermitidae. Unlike subterranean termites, this species does not require soil contact or high humidity levels to survive, as it obtains sufficient moisture directly from the wood it consumes.

This pest primarily attacks seasoned wood, including structural timber in buildings, wooden furniture, and utility poles. While their impact on living trees is secondary, they can colonize parts of trees that are dry or have exposed heartwood, eventually weakening the structure over long periods of infestation.

The biology of Cryptotermes hermsi involves a caste-based society consisting of nymphs, soldiers, and reproductives. They live within small, isolated colonies deep inside the wood. Their life cycle is slow, and populations may take several years to reach a size that causes noticeable structural degradation to the host material.

The most diagnostic sign of their presence is the accumulation of frass, which consists of small, hard, six-sided pellets. These are pushed out through tiny holes by workers to keep their tunnels clean. The economic impact is significant, as the termites create internal cavities that are invisible from the surface, often leading to sudden structural failure.

Effective management requires a combination of strategies, including:

• Regular inspection of structural timbers and furniture.
• Application of borate-based wood preservatives to prevent future colonization.
• Whole-structure fumigation or local heat treatment for active infestations.
• Sealing cracks and holes to prevent the entry of winged reproductive adults (alates).