Charles H. Bronson, Commissioner    -    James R. Karels, Director
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Insects of HARDWOOD BRANCH AND STEM
Black Twig Borer
Carpenterworm
Cicadas
Clearwing Moths
Florida Wax Scale
Giant Bark Aphid
Holly Pit Scale
Kermes Scale
Oak Lecanium Scale
Oak Treehopper
Obscure Scale
Psocids/ Bark Lice
Twig Girdler



 

Forest Health > Insects and Diseases publication

INSECTS of...Hardwood Branch and Stem

Common Name:

KERMES SCALE
A KERMES SCALE on petiole of oak leaf.



A KERMES SCALE on petiole of oak leaf.

 

Species

Kermes spp.

Common Hosts:

Laurel oak Quercus laurifolia
Live oak Quercus virginiana
Water oak Quercus nigra
Other oaks Quercus spp.

Description

Adult -- female approximately 3-7 mm wide; gall-like or globular; light brown with darker irregular lines.

Importance

Severe infestations may result in branch dieback; death of tree rare.

Signs of Infestation
Foliage discoloration. Gall-like or globular growths- kermes scales.
Control
Promote tree vigor and health. Use an approved insecticide for high-value trees or especially damaging scale populations.



Bulletin No. 196-A | Printed October, 1983 | Contact the Forest Health Section
Division of Forestry Shield


Florida Department of Agriculture and Consumer Services