A new factsheet was released to the Extension Content Database on bermudagrass mites.

Bermudagrass mites are tiny, worm-like arachnids present in the soil that can occasionally cause damage to turfgrass. Prevalence of bermudagrass mite damage has increased over recent years, likely a result of the use of more narrow-spectrum products, and changes in irrigation practices. Damage is, as far as we know, specific to bermudagrass and thus, is more prevalent in the southern United States.

Link: Bermudagrass Mites