Lilac
Fall webworm
Lilac borer
Lilac leafminer
Lilac rust mite
Oystershell scale
White prunicola scale

Locust, Black
Locust borer
Locust leafminer

Magnolia
Magnolia scale
Tuliptree scale

Maple
Aphids
Calico scale
Cankerworm
Cottony maple scale
Elm spanworm
European fruit lecanium
Fall webworm
Forest tent caterpillar
Gloomy scale
Greenstriped mapleworm
Japanese beetle
Leafhopper
Maple callus borer
Maple gall mites (eriophyid)
Maple leafcutter
Maple petiole borer
Oystershell scale
Pear thrips
Whitemarked tussock moth
Yellownecked caterpillar

Mimosa
Mimosa webworm

Mountain-Ash
Aphids
European red mite
Japanese beetle
Mountain-ash sawfly
Pear sawfly
Roundheaded appletree borer

Mountain Laurel
Azalea bark scale
Mulberry whitefly
Redbanded leafhopper
Rhododendron borer
Rhododendron lace bug
Rhododendron stem borer
Southern red mite
Twobanded Japanese weevil

Oak
Aphids
Borers
Cankerworm
Elm spanworm
Fall webworm
Forest tent caterpillar
Gall midges
Gall wasps
Golden oak scale
Gypsy moth
Leafhopper
May/June beetle
Oak kermes scale
Oak lace bug
Oak skeletonizer
Obscure scale
Orangestriped oakworm
Spider mites
Twig pruner
Twolined chestnut borer
Yellownecked caterpillar

Pachysandra
Euonymus scale
Oystershell scale
Twospotted spider mite

Pear (flowering-ornamental)
Aphids
Calico scale
Cottony maple scale
European fruit lecanium
Forest tent caterpillar
Oystershell scale
Pearleaf blister mite

Pine
Aphids
Bagworm
Engraver beetle
Eriophyid mite
European pine shoot moth
Gypsy moth
Nantucket pine tip moth
Northern pine weevil
Pales weevil
Pine bark adelgid
Pine bark beetle
Pine needle midge
Pine needleminer
Pine needle scale
Pine oystershell scale
Pine root collar weevil
Pine tortoise scale
Pine tube moth
Pine webworm
Sawflies
Spittlebugs
Spruce spider mite
Striped pine scale
White pine weevil
Zimmerman pine moth

Privet
Privet rust mite
Privet thrips
Twobanded Japanese weevil
White peach scale
White prunicola scale

Purpleleaf Plum
Globose scale
Pear sawfly

Pyracantha
Aphids
Globose scale
Hawthorn lace bug
Indian wax scale
San Jose scale
Spider mites

Redbud
European fruit lecanium
Spider mites
Twig girdler
Twig pruner
Whitemarked tussock moth

Rhododendron
Azalea bark scale
Black vine weevil
Cottony azalea scale
Leafhoppers
Mealybugs
Rhododendron borer
Rhododendron gall midge
Rhododendron lace bug
Rhododendron stem borer
Southern red mite
Townsend scale
Twobanded Japanese weevil
Whitefly

Rose
Aphids
Black vine weevil
Bristly roseslug
Curled roseslug
European red mite
Fall webworm
Fourlined plant bug
Japanese beetle
Leafhoppers
Mossyrose gall wasp
Obliquebanded leafroller
Raspberry cane borer
Rose chafer
Rose midge
Rose scale
Roseslug
Thrips
Twospotted spider mite

Serviceberry
Aphids
Hawthorn lace bug
Pear sawfly

Spirea
Aphids
Twobanded Japanese weevil

Spruce
Aphids
Bagworm
Cooley spruce gall adelgid
Eastern spruce gall adelgid
Elongate hemlock scale
Gypsy moth
Pine needle scale
Sawflies
Spruce bud scale
Spruce needleminer
Spruce spider mite
White pine weevil

Sweetgum
Bagworm
Calico scale
Fall webworm
Gypsy moth
Sweetgum scale

Sycamore
Aphids
Bagworm
Fall webworm
Japanese beetle
Sycamore lace bug
Sycamore plant bug
Terrapin scale
Tussock moth

Tuliptree
Aphids
Tuliptree scale
Yellow poplar weevil

Viburnum
Aphids
Fourlined plant bug
Indian wax scale
Southern red mite
Twobanded Japanese weevil
Viburnum leaf beetle

Weigela
Fourlined plant bug
Japanese beetle
Twobanded Japanese weevil

Willow
Aphids
Eastern tent caterpillar
Gypsy moth
Japanese beetle
Imported willow leaf beetle
Oystershell scale
Spider mites
Spiny elm caterpillar

Wisteria
Calico scale
Japanese beetle

Yew
Black vine weevil
Cottony taxus scale
Fletcher scale
Taxus bud mite
Taxus mealybug