IPM Checklist

Safe First Steps for Garden Pests โ€” an IPM Checklist

The short answer

Integrated Pest Management (IPM) is simply the habit of reaching for the least-toxic effective option first. Before any spray: prevent (healthy plants, clean beds, rotation), monitor and identify what's actually there, and decide whether the damage is bad enough to act at all โ€” a few chewed leaves usually isn't.

When you do act, start physical: hand-pick larger pests into soapy water, blast aphids and mites off with a strong jet of water, and use row covers as barriers. Only if that fails, step up to the least-toxic product that targets your specific pest โ€” insecticidal soap or a neem-based product โ€” never a broad, persistent synthetic as a first move.

The IPM order of operations

  1. 1Prevent โ€” Right plant, right place; keep beds clear of diseased material; rotate crops so pests don't build up.
  2. 2Monitor โ€” Check plants regularly for pests and damage, and judge whether the damage is actually enough to warrant doing anything.
  3. 3Identify โ€” Correctly ID the plant AND the pest before acting โ€” the right response depends entirely on what you have.
  4. 4Manage, least-toxic first โ€” Work up the ladder: cultural โ†’ physical/mechanical โ†’ least-toxic product, only as far as you need to go.

Physical controls to try first

  • Hand-pick beetles, caterpillars, and egg clusters into a cup of soapy water.
  • Blast aphids, mites, and whiteflies off leaves with a strong stream of water.
  • Use floating row covers as a physical barrier (remove them at flowering for crops that need pollination).
  • Remove and destroy heavily infested or diseased plant parts to slow spread.

If you do need a product

Choose the least-toxic, most pest-specific option available โ€” insecticidal soaps and neem-based or other naturally-derived products โ€” before any broad-spectrum synthetic. Spray only the affected plants, follow the product label exactly, and avoid spraying open flowers to protect bees.

โš  Always read and follow the product label โ€” it is the law and the safe dose. GardenSays never gives pesticide rates or DIY chemical mixes; identify your pest with your local Extension office and use a labeled product as directed.

Sources

Reviewed 2026-07-18. We cite university Extension, government, and established horticultural sources โ€” and never invent pesticide rates or dangerous treatments.

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Reference

Fire Blight: How to Identify and Manage It

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Fusarium Wilt: Identifying and Managing a Soilborne Vascular Disease

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Verticillium Wilt: Identifying and Managing a Long-Lived Soil Disease

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Blossom-End Rot: Why Fruit Rots at the Bottom and How to Prevent It

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Anthracnose: Identifying Leaf, Fruit, and Twig Symptoms and Managing Them

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Septoria Leaf Spot: Identifying and Managing It on Tomatoes

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Botrytis Blight (Gray Mold): Identifying and Managing It

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Clubroot: Identifying and Managing a Soilborne Brassica Disease

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Crabgrass: Identification and Cultural Control

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Dandelion: Identification and Control

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White Clover: Identification and Control in Lawns

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Ground Ivy (Creeping Charlie): Identification and Control

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Yellow Nutsedge: Identification and Control

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Field Bindweed: Identification and Control

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Common Purslane: Identification and Control

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Common Chickweed: Identification and Control

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Quackgrass: Identification and Control

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Poison Ivy: How to Identify It and Stay Safe

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How to Control Canada Thistle

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How to Control Wild Violet in Lawns

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How to Control Broadleaf Plantain

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How to Control Spotted Spurge

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How to Control Henbit

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How to Control Nimblewill

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How to Control Annual Bluegrass (Poa Annua)

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Aphids in the Garden

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Japanese Beetles in the Garden

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Squash Bugs in the Garden

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Squash Vine Borer in the Garden

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Tomato Hornworms in the Garden

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Cabbage Worms in the Garden

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Slugs in the Garden

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Spider Mites in the Garden

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How to Control Whiteflies in the Garden

Plant Problem Diagnostic

How to Control Cutworms in the Garden

Plant Problem Diagnostic

How to Control Flea Beetles in the Garden

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How to Control Scale Insects on Plants

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How to Control Fungus Gnats in Houseplants

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How to Control Colorado Potato Beetles

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How to Control Cucumber Beetles in the Garden

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How to Control Mexican Bean Beetles

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How to Manage Powdery Mildew on Plants

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How to Manage Downy Mildew in the Garden

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How to Manage Early Blight on Tomato and Potato

Plant Problem Diagnostic

How to Manage Late Blight on Tomato and Potato

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How to Manage Black Spot on Roses

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How to Manage Rust Disease on Plants

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How to Manage Cedar-Apple Rust

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How to Keep Deer Out of the Garden: Fencing That Actually Works

How-to Guide

Rabbit Damage in the Garden: Signs and Fencing That Stops It

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Squirrel Damage: Dug-Up Bulbs, Chewed Bark, and What Helps

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Vole Damage: Surface Runways, Gnawed Bark, and How to Stop It

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Mole Damage: Raised Tunnels, Mounds, and Honest Fixes

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Groundhog and Gopher Damage: Burrows, Fencing, and Realistic Fixes

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How to Keep Cats Out of Garden Beds (RHS-Backed Methods)

How-to Guide

Protecting Fruit from Birds: How to Net Safely

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Ticks in the Yard: CDC-Backed Landscaping That Reduces Risk

How-to Guide

Reducing Mosquitoes in the Yard: Start with Standing Water

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Wasps in the Garden: When They Help and When to Act

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Mealybugs on Houseplants and in the Garden: ID and Control

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Thrips in the Garden: Signs and Management

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Leafminers: What the Squiggly Trails Mean and What to Do

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Earwigs in the Garden: Damage, Trapping, and When to Ignore Them

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Spotted Lanternfly: How to Report and Destroy It

Reference

Emerald Ash Borer: What Ash Tree Owners Should Know

Reference

Why Is My Evergreen Turning Brown? A Diagnostic Guide

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Road and De-Icing Salt Damage to Plants: Signs and Prevention

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Japanese Knotweed: How to Identify It and Why It's Serious

Reference

Attracting Beneficial Insects: Building Habitat, Not Buying Bugs

Reference

Neem Oil and Horticultural Oils Explained: What They Do and Don't Do

Reference

Scarlet Lily Beetle: How to Spot and Control It

Plant Problem Diagnostic

Box Tree Caterpillar: How to Identify and Control It

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Vine Weevil: Notched Leaves, Root-Eating Grubs and How to Stop Them

Plant Problem Diagnostic

Horsetail (Mare's Tail): How to Control a Deep-Rooted Weed

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Ground Elder: How to Control a Fast-Spreading Perennial Weed

IPM Checklist

What's Eating My Rose Leaves? (Roseslugs vs. Beetles)

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Does Corn Gluten Meal Prevent Weeds?

Reference

Does Vinegar Kill Weeds?

Reference

Herbicide Damage on Tomatoes (Drift and Contaminated Compost)

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Sunscald on Tomatoes and Peppers

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Rose Rosette Disease: Witches' Broom, Excessive Thorns, and Why the Plant Has to Go

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Ants in the Garden and Lawn: Harmless, Helpful, or Fire Ants?

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Snakes in the Garden: Discourage Them Safely (No Killing Required)

How-to Guide

Poison Hemlock, Giant Hogweed, and Wild Parsnip: Deadly Look-Alikes

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Hemlock Woolly Adelgid: How to Spot the White Wool and the Treat-or-Lose Decision

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Peach Leaf Curl: The One Dormant-Spray Window That Actually Works

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Worms in My Apples: Codling Moth vs. Apple Maggot, and How to Stop Both

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Brown Rot on Peaches, Plums, and Cherries: Why Removing Mummies Comes First

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The Backyard Fruit Tree Spray Schedule: Dormant Oil, Petal Fall, and Never During Bloom

Seasonal Action Guide

Plum Curculio: The Crescent Scar on Your Fruit and How to Beat It at Petal Fall

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Yellow Woodsorrel (Oxalis): How to Tell It from Clover and Actually Stop the Spread

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Stinging Nettle: Removing It Safely and Getting the Rhizomes Out

How-to Guide

Pokeweed: How to Identify It, Why It's Toxic, and How to Remove It

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Creeping Bentgrass in the Lawn: Those Light-Green, Puffy Patches

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Brown Marmorated Stink Bug: Garden Crop Damage and Fall Home Invasion Control

IPM Checklist

Harlequin Bug on Brassicas: Identification and Control on Cabbage, Kale and Collards

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Asparagus Beetle Identification and Control: Common and Spotted Species

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Boxelder Bugs: Managing a Nuisance Fall Home Invader

IPM Checklist

Corn Earworm in Sweet Corn: Why Worms Are in the Ear Tip and How to Manage Them

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Pickleworm on Cucurbits: Holes and Frass in Squash, Cucumbers, and Melons

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Fall Armyworm: Sudden Lawn Browning and Vegetable Defoliation in Late Summer

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Sod Webworms in Lawns: Diagnosing Small Brown Patches and the Soap-Flush Test

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Billbugs in Lawns: The Tug Test for Grass That Pulls Up Easily and Sawdust-Filled Stems

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Chinch Bugs in Lawns: Telling Sap-Feeding Damage from Drought and the Float Test

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Creeping Bellflower: Why This Pretty Purple Weed Is So Hard to Kill

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Mugwort: The Silver-Backed, Chrysanthemum-Scented Weed That Laughs at Pulling

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Garlic Mustard: Pull It Before It Seeds (and Bag What You Pull)

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Lesser Celandine (Fig Buttercup): The Spring Weed That Vanishes Before You Can Fight It

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Lambsquarters: The Mealy-Leaved Garden Weed (and How to Tell It from Pigweed)

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Redroot Pigweed: The Red-Rooted Annual That Buries the Soil in Seed

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Goosegrass: The Silver-Centered 'Crabgrass' That Loves Compacted Soil

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Dallisgrass: The Clumping Perennial Grass That Keeps Coming Back in Circles

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Bermudagrass as a Weed: Getting It Out of Flower Beds and Other Lawns

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Mock Strawberry: The Yellow-Flowered Lawn 'Strawberry' with Tasteless Fruit

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Prostrate Knotweed: The Wiry Mat That Signals Compacted Soil

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Common Burdock: The Burr Weed with a Rhubarb-Sized Taproot

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Common Mallow (Cheeseweed): Pull It Young, Before the Taproot Turns Woody

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Bitter Pit in Apples: The Corky Brown Spots That Aren't a Disease

Plant Problem Diagnostic

Iron Chlorosis: Why Pin Oak, River Birch, and Blueberry Leaves Yellow Between the Veins

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Black Knot on Plum and Cherry: The Black Warty Galls, and Why Pruning Comes First

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Peachtree Borer: The Gummy Sawdust at the Trunk Base and How to Stop It

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Hollyhock Rust: The Orange Pustules Underneath, and Why Sanitation Beats Spraying

IPM Checklist

Peony Botrytis Blight: Blackened Buds, Rotting Stems, and the Fall Cleanup That Prevents It

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Tomato Leaf Mold: Yellow Spots on Top, Olive Mold Underneath, and Why It Loves Greenhouses

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Southern Blight: The White Fungal Fan and Mustard-Seed Sclerotia at the Soil Line

Plant Problem Diagnostic

White Mold (Sclerotinia): The Cottony Growth and Black Sclerotia on Beans and Lettuce

Plant Problem Diagnostic

Bacterial Spot vs. Speck on Tomato and Pepper: Telling Bacteria from Fungus, and From Each Other

Plant Problem Diagnostic

Mosaic Virus on Tomato: Why Your Leaves Are Mottled, and Why There's No Cure

Plant Problem Diagnostic

Tomato Spotted Wilt Virus: Ring Spots, Thrips, and Why Roguing Plants Is the Only Fix

Plant Problem Diagnostic

Quince Rust: The Cedar Rust That Deforms Hawthorn and Serviceberry Fruit

Plant Problem Diagnostic

Why Your Fruit Tree Bears Every Other Year, and How Thinning Fixes It

Reference

Bagworms on Evergreens: Spindle-Shaped Bags on Arborvitae, Juniper, and Spruce

IPM Checklist

Tent Caterpillar vs. Fall Webworm: Telling the Two Tree Webs Apart

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Viburnum Leaf Beetle: Skeletonized Leaves and Dormant-Season Egg Pruning

IPM Checklist

Leaf-Footed Bugs on Tomatoes: Damage, Beneficial Look-Alikes, and Control

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Chipmunk Damage in the Garden: Dug-Up Bulbs, Burrows, and Honest Fixes

IPM Checklist