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HOLLY PIT SCALE
HOLLY PIT SCALES on the bark of an American Holly tree. |
| Species |
Asterolecanium putneanum |
| Common Hosts: |
American holly Ilex opaca
Burford holly Ilex cornuta
Dahoon holly Ilex cassine
Japanese holly Ilex crenapa
Yaupon Ilex vomitoria |
Description |
Adult -- female approximately 1-2 mm wide; circular, slightly raised, yellowish-green, waxy body covering. |
Importance |
Severe infestations may result in branch dieback; death of tree uncommon. |
Signs
of Infestation |
Foliage discoloration and branch dieback. Twigs and branches with ring-like swellings or pits in bark. A result of reduced growth at the scale feeding site, but continued growth of surrounding tissue. |
Control |
Promote tree vigor and health. Use an approved insecticide for high-value trees or high scale populations. Prune branches that have significant scale levels. |
Bulletin No. 196-A | Printed October, 1983 |
Contact the
Forest Health Section
