Bermudagrass Mite
Eriophyes cynodoniensis Sayed, Eriophyidae, PROSTIGMATA


DESCRIPTION

Adult -- Approximately 0.2 mm long, this mite is worm-like in shape and creamy white in color.

Eggs -- Oval and about 0.07 mm long, the eggs are transparent to opaque white in color.

Nymphs -- These stages are approximately two-thirds the size of the adult and are whitish in color. They also appear worm-like or cigar-shaped and have four legs as do the adults.


BIOLOGY

Distribution -- Its origin is thought to be Africa. In the United States, the mite may be found from Florida to Arizona. It has also been collected from Las Vegas, Nevada.

Host Plants -- Bermudagrass.

Damage -- Initial damage is observed in the spring when lawns fail to begin normal growth. These areas may be yellow or brown in color. Damage appears as a typical resetting and tufting, caused by a shortening of the internodes. As the grass is mowed the clumps of grass become less vigorous. Infested grass will have large brown clumps of distorted stems that usually die. Grass in infested lawns usually thins, allowing weed development.

Life History -- The adult mites infest the grass in protected areas primarily under the leaf sheaths. The eggs are deposited in these areas. Five to 7 days are required for complete development from egg to adult. This species is active primarily in the late spring and summer.


CONTROL

For control recommendations see the state extension service recommendations for turf pest insect control.