TreeIssues

Pest & Disease Forecast for Missouri

It's September — 186 tracked threats are active right now in Missouri. Each timeline shows estimated activity across the year.

Active nowWatch closely — these threats are at or near peak activity this month.
Emerald Ash Borer
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Japanese Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Bagworm
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Dutch Elm Disease
DiseaseCRITICAL

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Fire Blight
DiseaseHIGH

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Cedar-Apple Rust
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Anthracnose
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Powdery Mildew
FungusLOW

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Apple Scab
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Armillaria Root Rot
FungusHIGH

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Diplodia Tip Blight
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Dothistroma Needle Blight
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Rhizosphaera Needlecast
FungusHIGH

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Stigmina/SNEED Needlecast
FungusHIGH

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Pine Wilt Disease
DiseaseCRITICAL

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Cytospora Canker
FungusHIGH

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Bacterial Leaf Scorch
DiseaseHIGH

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Verticillium Wilt
FungusHIGH

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Phytophthora Root Rot
FungusHIGH

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Leaf Spot Diseases
FungusLOW

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Tar Spot
FungusLOW

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Seven-spotted Lady Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Six-spotted Tiger Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
turkey-tail
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Thiers' lepidella
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Asian Longhorned Beetle Damages hardwood trees by tunneling deep into trunks and branches
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Walnut Sphinx
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
flowerpot parasol
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Reddish-brown Stag Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Southern Masked Chafer
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Grapevine Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Pink-barred Pseudeustrotia Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Two-lined Spittlebug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
False Milkweed Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
crown-tipped coral fungus
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Chickweed Geometer Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Coppery Leafhopper
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Ozophora picturata
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
indigo milk cap
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
oak bracket
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Smooth Chanterelle
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Spotted Cucumber Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Versute Sharpshooter
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Common Eastern Firefly
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Helmeted Squash Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Green-spored Parasol
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Oleander Aphid
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Constricted Leafhopper
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Cyclocephala lurida lurida
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Speckled Sharpshooter
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Ailanthus Webworm Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
White-crossed Seed Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Lesser Maple Spanworm Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Polished Lady Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
American Tar Spot
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Eight-spotted Forester Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Ivory-marked Borer
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Red-tailed Specter Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Large Milkweed Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Asian Lady Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Betrothed Underwing
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Juniper Geometer Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
North American Tarnished Plant Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Red-banded Leafhopper
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Virginia Creeper Sphinx
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Red-shouldered Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Eastern Hercules Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Squash Lady Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Spiny Assassin Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Common Green June Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Citrus Flatid Planthopper
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Pale Green Assassin Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Ringless Honey Mushroom
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Serrate Cedar Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Eastern Red-bellied Tiger Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Virginia Metallic Tiger Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Christina Sulphur
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Stirellus bicolor
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Grape Leaffolder Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Orange Wing
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Moon-lined Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Superb Dog-day Cicada
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Bush Cicada
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Lynx Paw Oyster
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Mustard Yellow Polypore
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Hagen's Sphinx
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Green Stink Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Ring-horned Assassin Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Ashy Gray Lady Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Snowy Urola Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Giant Eucosma Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Meal moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Black-bordered Lemon Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Pustulated Carrion Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Red-legged Buprestis Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Polyphemus Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Waved Sphinx
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Eggplant Leafroller Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Dotted Gray
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Notonecta irrorata
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Peach Root Weevil
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Long-necked Seed Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Pink-striped Oakworm Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Basswood Leafroller Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Spotted Pink Lady Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
North American Luna Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Delicate Cycnia Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Salt Marsh Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Dark Flower Scarab
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Evergreen Bagworm Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
black locust treehopper
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Eastern Tiger Swallowtail
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Hackberry Emperor
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
American Red Admiral
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Northern Pearly-eye
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Lucerne Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Tropisternus collaris
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Striped Blister Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Fiery Searcher
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Green Cloverworm Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Clymene Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Viceroy
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Sweet Click Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Splendid Earth-boring Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Bisected Honey Locust Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Beautiful Wood-nymph
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Corn Earworm Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Harnessed Tiger Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Ragweed Flower Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Beggar Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Elegant Grass-veneer
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Pandorus Sphinx
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Rice Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Coppery Dung Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Celery Leaftier Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Carolina Sphinx
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Yellow-collared Scape Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Black Stink Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
onion-stalk parasol
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
White-fringed weevil
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Juniper Stink Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Keeled Treehopper
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Phileurus valgus
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Clemens' Grass Tubeworm Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Eastern Leaf-footed Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Swamp Milkweed Leaf Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Pearl Crescent
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Scissor Grinder
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Monarch
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Big-eyed Toad Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Mealybug Destroyer
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Zebra Conchylodes Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Spotted Beet Webworm Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Leptoglossus oppositus
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Goldenrod Soldier Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Variegated Fritillary
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
North American Wheel Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Relict Rhinoceros Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Question Mark
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Brown Stink Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Orange Assassin Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Inornate Pyrausta Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Guenée's Pearl
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Red-spotted Admiral
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Snowberry Clearwing
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Maple Looper Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Common Idia Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Diamondback Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Plains Dog-Day Cicada
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Bay Polypore
FungusMODERATE

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
Hibiscus Scentless Plant Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Packard's Lichen Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
North American Common Gray
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Northern Flatid Planthopper
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Small Milkweed Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Common Spragueia Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Crocus Geometer Moths
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Common Buckeye
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Wavy-lined Emerald
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Waterlily Leafcutter Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Isabella Tiger Moth
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Belostoma
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Common Tan Wave
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Elm Leaf Beetle
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Locust Borer
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Harlequin Bug
InsectMODERATE

Peak activity: Summer

J
F
M
A
M
J
J
A
S
O
N
D
Quiet for nowLow activity this month, but still present in the region.
Oak Wilt
DiseaseCRITICAL

Peak activity: Spring

J
F
M
A
M
J
J
A
S
O
N
D
← National forecast|All Missouri threats →|Get monthly care reminders →

Activity windows are seasonal estimates based on pest type and known phenology for the continental US; local timing varies with weather and elevation. Always confirm with a certified arborist or your state extension office.