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Garden Pest & Disease Library

Something wrong in your garden?

Browse expert guides to identify and control common insect pests, plant diseases, and wildlife damage affecting vegetables, herbs, fruits, and flowers. Each guide explains what you’re seeing, what causes it, and how to fix it safely and effectively.

Not sure what the problem is? Use our Plant Problem ID Tool to diagnose by symptom and get instant guidance.

Indoor & Household Pests

Ants

Fleas

A Close up of a Bed Bug (Cimex lectularius)

Bed Bugs

Silverfish

Plant Diseases

Cabbage plants showing symptoms of clubroot disease (Plasmodiophora brassicae), characterized by swollen, deformed roots,a serious soil-borne disease affecting Brassicaceae crops

Clubroot

Basil seedlings wilting and dying from Verticillium wilt infection

Verticillium Wilt

Tomato roots showing dark, damaged growth caused by root rot

Root Rot

Tomato plant showing sudden wilting caused by bacterial wilt

Bacterial Wilt

plant disease, onion rot in production field

White Rot

Damping off

Damping Off

Bacterial burn on young apple tree branches in the garden. g

Fire Blight

Late Blight on Tomato Plant

Late Blight

Fusarium Wilt

Early Blight

Downy Mildew

Blossom-End Rot on Tomatoes

Blossom-End Rot

White cottony mycelium of Sclerotinia sclerotiorum on plant stem causing white mold disease.

White Mold

Rust Plant Disease

Gray Mold

Anthracnose

virus disease on eggplant, yellow leaf mosaic

Mosaic Viruses

powdery mildew plant disease on a yellow summer squash plant and leaves

Powdery Mildew

Insect Pests

roots pulled up with root-knot nematode infection

Root-Knot Nematodes

Harlequin bug feeding on a yellow flower.

Harlequin Bugs

Tarnished plant bug (Lygus lineolaris) on a leaf

Tarnished Plant Bug

Corn earworm feeding on a corn cob

Corn Earworms

Grasshopper chewing on a green leaf

Grasshoppers

A wireworm pest emerging from a freshly dug potato

Wireworms

Symptoms of white rust in Mustard plant

White Rust

Cercospora leaf spot (Cercospora beticola).

Leaf Spot

Echinacea plants with aster yellows disease

Aster Yellows

Spittlebug Foam on Flowers

Spittlebugs

Armyworm on leaf

Armyworm

Fire Ant on a plant

Fire Ants

Cabbage Looper Moth Caterpillar (Trichoplusia ni) on a green and red succulent leaf.

Cabbage Looper

Leafhoppers

Stink Bugs

colorado potato beetle

Colorado Potato Beetles

Leaf Miners

Scale Insects

Spider Mites

Chiggers (Mites)

Chiggers

fungus gnat on a plant leaf

Fungus Gnats

Thrips

Squash Vine Borer

Squash Bugs

Striped cucumber beetle on a leaf

Cucumber Beetles

Cutworms

Japanese Beetles

green aphids crawling on a plant

Aphids

Tomato Hornworms

whiteflies and whitefly eggs on a green leaf

Whiteflies

Cabbage Root Maggots

cabbage worm on a cabbage leaf

Cabbage Worms

Slugs & Snails

Earwigs

Flea Beetles

Mexican Bean Beetles

Animal Pests & Wildlife

white-tailed deer eating plants in a garden

Deer

Raccoons

a woodchuck/groundhog in the garden

Groundhogs

Mice

Rabbits

grey squirrel on a green lawn

Squirrels

A skunk, black feathers and white stripes running from the body to the tail, walk on a wooden table.

Skunks

Mole (Scalopus Aquaticus)

Moles

American Crow, Corvus brachyrhynchos, standing on a brick post in a suburban garden

Crows

Voles

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