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IPM Scouting in Woody Landscape Plants

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Identifying common insect pests and diseases of woody landscape plants
The information presented here about common diseases, insect pests and beneficial species was developed from the publication A Pocket IPM Scouting Guide for Woody Landscape Plants by Diane Brown-Rytlewski. Purchase this in a pocket-sized guide for reference in the field from MSU Extension (publication E-2839).

For reference: 		Cover photo
Insects and aphids
Aphids
Ash flower gall mite
Ash plant bug
Black vine weevil
Bronze birch borer
Cooley spruce gall adelgid
Cottony maple scale
Eastern spruce gall adelgid
Eastern tent caterpillar
Emerald ash borer
Euonymus scale
 European pine sawfly
Fall webworm
Flat-headed apple tree borer
Fletcher scale
Gall-producing mites
Gypsy moth
Honeylocust mite
Honeylocust plant bug
Honeylocust leafhopper
Japanese beetle

 Juniper scale
Leaf-mining sawflies
Oystershell scale
Pine needle scale
Potato leafhopper
Rose chafer
Slug sawflies
Spruce spider mite
Twolined chestnut borer
Twospotted spider mite
Diseases
Anthracnose of shade trees
Apple scab
Beech bark disease
Black spot
Botryosphaeria canker
Cedar-apple rust
Cedar-hawthorn rust
Cedar-quince rust		 Crown gall
Cytospora canker
Diplodia
Dogwood anthracnose
Dutch elm disease
Fire blight
Juniper tip blight
Oak wilt		 Phytophthora dieback
Phytophthora root and crown rot
Powdery mildews
Rhizosphaera needlecast
Sphaeropsis tip blight
Tar spot
Verticillium wilt
Animal damage
Deer damage Meadow vole damage Rabbit damage
Abiotic injury
Chlorosis
Drought
Fall needle drop
Freeze damage

 Frost damage
Girdling wires and ropes
Improper planting depth		 Overmulching
Salt
Scorch
Natural enemies
About beetles
About natural enemies
Aphidiid wasps
Assassin bugs
Braconid wasps
Brown lacewing
Cecidomyiids		 Damsel bug
Green lacewing
Ground beetles
Ichneumonid wasp
Lady beetles
Parasitic flies
Parasitic wasps		 Predatory flies
Predatory mites
Syrphid fly
Spined soldier bugs
Tachinid flies
True bugs
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
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Updated 10/11/07