|
OBSCURE SCALE
OBSCURE SCALES on twigs. Note
the close resemblance in color of scales and twig
. |
| Species |
Melanaspis obscura |
| Common Hosts: |
Laurel oak Quercus laurifolia
Live oak Quercus virginiana
Pecan Carya illinoensis
Turkey oak Quercus laevis
Water oak Quercus nigra
Other oaks Quercus spp. |
Description |
Adult -- female approximately 3 mm wide; circular, slightly raised, grayish to black body; closely matches bark color. |
Importance |
Severe infestations may result in branch dieback; death of tree uncommon. |
Signs
of Infestation |
Foliage discoloration and branch dieback. Roughened appearance of bark due to layering of scales one on another. |
Control |
- Promote tree vigor and health. Use an approved insecticide for high-value trees or high scale populations.
|
Bulletin No. 196-A | Printed October, 1983 |
Contact the
Forest Health Section
