REFERENCE LIST
Anthracnose
Aphids
Armillaria root rot
Azalea leaf and flower gall
beech scale
Black knot
Black spot on rose
Black vine weevil
Borers
Botryosphaeria
Burls
Cankers
Cottony scale
Damaged roots
Drought
Dutch elm disease
Eriophid mite damage
Euonymus scale
Flower thrips (rose)
Fungi at the base (Hen-of-the-woods)
Green holly berries
Gummosis
Hemlock elongate scale
Hemlock woolly adelgid
Holly leaf miner
Horticultural oil
Insecticidal soap
Iron deficiency
Japanese beetle
Juniper scale
Lace bugs
Leaf hopper, plant hopper
Leafminer damage
Mealy bug
Oak leaf galls
Oak twig galls
Phytophthora
Pitch mass borer
Powdery mildew
Redheaded pine sawfly
Rusts
Shelf fungi (Northern tooth fungi)
Slime flux
Spruce spider mite
Tulip tree scale
Verticillium wilt
Viruses
Whitefly
This web site was created for the Morris Arboretum of the University of Pennsylvania's Plant Clinic.
Created by C. Hetzel and revised by S. Eisenman on 3/7/02.
URL = http://www.upenn.edu/PaFLORA/Plantclinic/referencelist.html