PEV Codes: Codes with a P prefix (e.g., PGM, PTT) indicate the condition was Previously Evident from a prior visit and is still present.
BFA
Arborvitae Black Flag
Black foliage; likely physical injury — prune out
BBD
Beech Bark Scale / Disease
Wax-covered scale insects disrupting vascular system
BLK
Black Knot
Irregular black galls on plum, apricot, chokecherry
BD
Branches Dead
Dead wood harbors insects/disease — prune annually
D03
Deer Damage — Buck Rub
Bark damage from deer antler rubbing
D01
Deer Damage Arborvitae
Deer feeding on evergreen foliage
D02
Deer Damage Yew
Deer feeding on yew plants
EXM
Excessive Mulch
Mulch piled too high; promotes rot
GIR
Girdling Root
Root circling trunk; restricts nutrients
TJP
Just Pruned
TLS
Leaf Scorch
Browning leaf edges from heat/wind stress
TOW
Over-watering
Too much water; root rot risk
C02
Planted Too Deep
Root flare buried; can cause decline
TPB
Plants Blooming
TDP
Plants Dead
PLD
Poor Landscape Drainage
Standing water around plants
TPN
Pruning Needed
Overgrown; recommend professional pruning
RF
Rabbit Feeding
Bark gnawing or stem damage from rabbits
SQL
Spruce — Squirrel Damage
TIN
Systemic Insecticide Used
C03
Trees Exceeded Spray Height
Too tall for standard spray equipment
TIS
Watering Your Trees
Reminder: deep watering during dry periods
TWN
Winter Burn
Desiccation from cold, dry winter winds
W02
Winter Damage Arborvitae
W01
Winter Damage Boxwood
W03
Winter Damage Juniper
S00
Arborvitae
S01
Azalea
S02
Barberry
S03
Boxwood
S04
Burning Bush
S05
Crabapple
S06
Hydrangea
S07
Japanese Maple
S13
Large Perennial Population
S08
Pear Tree
S10
Redbud
S09
Rhododendron
S11
Spruce
S12
Yew
AT
Anthracnose
Fungal leaf/twig blight; brown spots & dieback
AS
Apple Scab
Dark spots/lesions on crabapple/apple leaves
BK
Black Knot
Black galls on cherry/plum branches
C
Cankers
Dead bark areas on trunk/branches
CYC
Cytospora Canker
Resinous cankers on spruce; blue-white sap
DH
Dothistroma Needle Blight
Red-brown bands on pine needles
TFB
Fire Blight
Bacterial; blackened “shepherd’s crook” shoots
TSP
Leaf Spot — Trees
Various fungal leaf spots
NL
Needle Cast
Fungal disease causing needle drop in conifers
PS
Phomopsis
Tip blight on junipers and arborvitae
PM
Powdery Mildew — Tree
White powdery coating on leaves
T33
Rose Black Spot
Black spots with yellow halos on rose leaves
TAR
Tar Spot
Black tar-like spots on maple leaves
TT
Tip Blight
Dieback of new growth tips
PTT = Previously Evident
PTT
Tip Blight — Previously Evident
PEV code for Tip Blight (TT)
RS
Trellis / Cedar Apple Rust
Orange gelatinous galls on cedar; spots on apple
DI
Diplodia
Stunted new growth on pines; brown tips
AD
Adelgids
White cottony masses on hemlock/spruce
T01
American Plum Borer
AP
Aphids
Sap-sucking; cause curled/sticky leaves
T02
Arborvitae Leaf Miner
T07
Azalea Leaf Miner
T03
Azalea Whitefly
BW
Bagworm
Spindle-shaped bags on evergreens; defoliator
T05
Balsam Gall Midge
T04
Balsam Twig Aphid
T08
Birch Leaf Miner
BSK
Birch Skeletonizer
T06
Black Vine Weevil
Notched leaf edges on rhododendron/yew
T10
Boxwood Mite
T12
Boxwood Psyllid
Causes cupped leaves on boxwood
T14
Cherry Leaf Miner
T15
Cooley Spruce Gall Adelgid
Pineapple-shaped galls on spruce tips
T16
Cottony Maple Scale
White cottony masses on maple branches
T17
Dogwood Borer
T18
Dogwood Sawfly
TC
Eastern Tent Caterpillar
Silk tents in tree crotches; defoliator
T19
Elm Casebearer
T20
Elm Leaf Beetle
T21
Elm Leafminer
T22
Elongate Hemlock Scale
T23
Euonymus Scale
T24
European Elm Scale
T26
European Pine Shoot Moth
FW
Fall Web Worm
Web nests at branch tips in late summer
FHA
Flat Headed Appletree Borer
T27
Greenstriped Mapleworm
GM
Gypsy Moth
Major defoliator of hardwoods
PGM = Previously Evident
PGM
Gypsy Moth — Previously Evident
PEV code for Gypsy Moth (GM)
T28
Hawthorne Leaf Miner
JB
Japanese Beetles
Skeletonize leaves; metallic green/bronze
LH
Leaf Hopper
LM
Leaf Miners
Larvae feed inside leaves; serpentine trails
T25
Lecanium Scale
T29
Magnolia Scale
MB
Mealy Bug
MI
Mites Present
Stippled/bronzed leaves; fine webbing
C01
Planted Too Deep
Root flare buried; can cause decline
SF
Sawflys
Larvae feed in groups; defoliate quickly
SC
Scale Insects
Bumps on bark/leaves; sap feeders
ST
SpittleBugs
Frothy white masses on stems
WE
Weevils
WF
White Fly
WPW
White Pine Weevil
Kills leader shoot on white pine/spruce
UAD
Adelgids
U01
American Plum Borer
UAT
Anthracnose
UAP
Aphids
UAS
Apple Scab
U02
Arborvitae Leaf Miner
U07
Azalea Leaf Miner
U03
Azalea Whitefly
UBW
Bagworm
U05
Balsam Gall Midge
U04
Balsam Twig Aphid
UBO
Birch Borers
U08
Birch Leaf Miner
UBK
Black Knot
U06
Black Vine Weevil
UBD
Boxwood Damage
U11
Boxwood Leaf Miner
U09
Boxwood Mite
U12
Boxwood Psyllid
UBU
Burning Bush Damage
UC
Cankers
U13
Cankerworms
U14
Cherry Leaf Miner
UCT
Chlorotic Tree(s)
Yellowing from nutrient deficiency
U15
Cooley Spruce Gall Adelgids
U16
Cottony Maple Scale
UCP
Crab & Pear Program
UDR
Deep Root Feeding
Subsurface fertilization for trees
UDI
Diplodia
U17
Dogwood Borer
U18
Dogwood Sawfly
UDH
Dothistroma Needle Blight
UDE
Dutch Elm
UTC
Eastern Tent Caterpillar
U19
Elm Casebearer
U20
Elm Leaf Beetle
U21
Elm Leaf Miner
U22
Elongate Hemlock Scale
U23
Euonymus Scale
U24
European Elm Scale
U26
European Pine Shoot Moth
UFW
Fall Webworm
U32
Flat Headed Appletree Borer
UFC
Frost Crack
U27
Greenstriped Mapleworm
UGM
Gypsy Moth
U28
Hawthorne Leaf Miner
UJB
Japanese Beetle
ULH
Leaf Hopper
ULM
Leaf Miner
USP
Leaf Spot — Trees
U25
Lecanium Scale
U29
Magnolia Scale
UMB
Mealy Bug
UMI
Mites
UNL
Needle Cast
UOW
Oak Wilt
UPS
Phomopsis
UPR
Phytophthora Root Rot
UPM
Powdery Mildew — Tree
U33
Rose Black Spot
USF
Saw Flys
USC
Scale
UST
Spittlebugs
USD
Spruce Decline
UTT
Tip Blight
URS
Trellis / Cedar Apple Rust
UVT
Verticillium Wilt
UWE
Weevils
UWF
White Fly
U31
White Pine Weevil
UWD
Winter Damage
UWN
Winter Protection
DAR
Deer & Rabbit Repellent