INSECTS of...Hardwood Branch and Stem

Common Name:	OAK LECANIUM SCALE OAK LECANIUM SCALE on an oak twig.
Species	Parthenolecanium quercifex
Common Hosts:	Laurel oak Quercus laurifolia Live oak Quercus virginiana Other oaks Quercus spp.
Description	Adult -- female approximately 5 mm wide; circular, strongly raised, reddish to dark brown body; tortoise-like, but double hump.
Importance	Severe infestations may result in branch dieback; death uncommon.
Signs of Infestation	Foliage discoloration and branch dieback. Clumped swellings- the scales - on branches or twigs.
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

OAK LECANIUM SCALE