Insects and Diseases on Insects and Diseases on Common Long Island Common Long Island

Landscape PlantsLandscape Plants

Peter FelixPeter FelixISA Certified Arborist NY0263ISA Certified Arborist NY0263

AndromedaAndromeda

Lace bugsAzalea bark scale

Alberta spruceAlberta spruce

Spider mites attack alberta spruce usually in full sun

AzaleasAzaleas

lacebugs Azalea bark scaleTwo banded japanese weevil

ArborvitaeArborvitae

bagworms

Arborvitae leafminer

Spider mites

Arborvitae Leaf-Miner AdultArborvitae Leaf-Miner Adult

Adult

When in flight it resembles a small moth

Phytophthora citricola

Wooly beech aphid

European Beech TreesEuropean Beech Trees

Phytophthora on European Phytophthora on European BeechBeech

American Beech American Beech Beech Bark ScaleBeech Bark Scale

Birch treesBirch trees

Birch leaf miner Bronze birch borer

Birch treesBirch trees

BronzeBirch Borer

Adult

BoxwoodBoxwood

Boxwood leafminer

Boxwood psyllid

CherryCherry

Tent caterpillar

White prunicola scale

CrabappleCrabapple

Tent caterpillar

Cedar-apple rust

Apple scab

CotoneasterCotoneaster

lace bugs

CypressCypress

Spider mites

scale

anthracnose

DogwoodDogwood

Euonymus scale

Euonymus caterpillar Two banded weevil

EuonymusEuonymus

FirFir

Balsam wooly adelgid

Spider mites

HemlockHemlock

Elongate hemlock scale

Hemlock wooly adelgid Spider mites

Cottony camellia scale

Holly leaf miner

HollyHolly

Honey locust plant bug Honey locust plant bug adult

Honey locust pod gall midge

Honey locustHoney locust

Japanese Black PineJapanese Black PineBlack Turpentine BeetleBlack Turpentine Beetle

Pitch tubes which look like sap volcanoes

Blue stain fungusBlue stain fungusThe fungus, carried by the beetle, spreads throughout the tree and restricts

vascular flow to the top of the tree essentially cutting off it’s life supply.

Japanese Black PineJapanese Black PineScaleScale

Juniper scale

Phomopsis tip blight Spider mites

JuniperJuniper

Powdery mildew

White peach scale

LilacLilac

LindenLinden

Cottony scale

MaplesMaples

aphidsaphids

Cottony maple scale

Mountain laurelMountain laurel

Leaf spot

Pine sawfly

Pine sawfly

Pine needle scale

Mugo pineMugo pine

OaksOaks

Gypsy moth

Golden oak scale

Oak gall

Purple leafed plumPurple leafed plum

scale

PrivetPrivet

White peach scale

borers

midge

Black vine weevil

RhododendronsRhododendrons

RosesRoses

aphids

SpireaSpirea

aphids

SpruceSpruce

Spruce gall adelgid

Two spotted mites

SycamoreSycamore

Sycamore anthracnose

White PineWhite Pine

spittlebugPine barkadelgid

White pine weevil

Cottony taxus scale

Fletcher scale

Mealy bugs

Cottony taxus scale

YewYew

Injuries From Poor Cultural Injuries From Poor Cultural PracticesPractices

Lawn mower and weed whacker Damage

SolutionSolution

Weekly Soil Scratching Kills Weekly Soil Scratching Kills roots!roots!

Overhead irrigation hits foliage Overhead irrigation hits foliage causing disease problemscausing disease problems

Overhead irrigation hits foliage Overhead irrigation hits foliage causing disease problemscausing disease problems

Overhead irrigation hits foliage Overhead irrigation hits foliage causing disease problemscausing disease problems

Poor cultural practices Poor cultural practices De-icing saltDe-icing salt

Salt damage

Too DeepToo Deep

Excessive soil around tree trunks

Mulch VolcanoesMulch Volcanoes

Wrong Plant Wrong PlaceWrong Plant Wrong Place

Wrong plant wrong place

Soil CompactionSoil Compaction

Soil CompactionSoil Compaction Construction Construction

vehiclesvehicles Lawn mowersLawn mowers PetsPets Pedestrian trafficPedestrian traffic Rain DropletsRain Droplets

Measuring Soil CompactionMeasuring Soil Compaction

PenetrometerPenetrometer

Alleviating Soil Compaction Alleviating Soil Compaction (Trees)(Trees)

Radial Trenching with Air-SpadeRadial Trenching with Air-Spade

Alleviating Soil Compaction Alleviating Soil Compaction (Trees)(Trees)

Radial Trenching with Air-spadeRadial Trenching with Air-spade

Alleviating Soil Compaction Alleviating Soil Compaction (Trees)(Trees)

Radial Trenching with Air-spadeRadial Trenching with Air-spade

Grade changesGrade changes

Root Collar ExcavationsRoot Collar Excavations

Root Collar ExcavationsRoot Collar Excavations

What is Plant Health Care?What is Plant Health Care?

PHC is the art and science of caring for PHC is the art and science of caring for plants as a whole through frequent plants as a whole through frequent monitoring during the season. PHC monitoring during the season. PHC programs include building soil programs include building soil microbiology, creating proper plant microbiology, creating proper plant growing environments, preventing growing environments, preventing pest problems, and dealing with pest pest problems, and dealing with pest outbreaks, while being sensitive to the outbreaks, while being sensitive to the environment and beneficial organisms.environment and beneficial organisms.

PHC ToolsPHC Tools

Compost TeaCompost Tea

Thank YouThank You

Any Questions? Any Questions?