AGreenNestPlant Pests & Diseases
Aphids, mealybugs, fungus gnats, and root rot are the four horsemen of houseplant heartbreak. Here is how to identify each issue fast and fix it before it spreads.
Plant Pests & Diseases
How to Deal With Leaf Spot
Leaf Spot: what it looks like, why it happens, and the fix. Brown or black spots with yellow halos on leaves.
Plant Pests & Diseases
How to Deal With Mealybugs
Mealybugs: what it looks like, why it happens, and the fix. White, cottony clumps in leaf joints and at the base of leaves.
Plant Pests & Diseases
How to Deal With Over-fertilisation
Over-fertilisation: what it looks like, why it happens, and the fix. Crispy brown leaf edges and a white crust on the soil.
Plant Pests & Diseases
How to Deal With Powdery Mildew
Powdery Mildew: what it looks like, why it happens, and the fix. White powdery coating on leaves and stems.
Plant Pests & Diseases
How to Deal With Root Rot
Root Rot: what it looks like, why it happens, and the fix. Yellow, wilting leaves in wet soil; black, mushy roots and a sour smell.
Plant Pests & Diseases
How to Deal With Scale Insects
Scale Insects: what it looks like, why it happens, and the fix. Brown, dome-shaped bumps stuck to stems and leaves.
Plant Pests & Diseases
How to Deal With Spider Mites
Spider Mites: what it looks like, why it happens, and the fix. Fine webbing and stippled, bronzed, or speckled leaves.
Plant Pests & Diseases
How to Deal With Sunburn
Sunburn: what it looks like, why it happens, and the fix. Bleached white or brown scorched patches, often on the side facing the window.
Plant Pests & Diseases
How to Deal With Thrips
Thrips: what it looks like, why it happens, and the fix. Silvery streaks and tiny black droppings on leaves; distorted new growth.
Plant Pests & Diseases
How to Deal With Whitefly
Whitefly: what it looks like, why it happens, and the fix. Tiny white moth-like insects that fly up when disturbed.
Plant Pests & Diseases
How to Eliminate Fungus Gnats for Good
Eliminate fungus gnats with sticky traps, hydrogen peroxide drenches, and bottom watering. A AGreenNest guide to breaking the gnat life cycle in houseplants.
Plant Pests & Diseases
Fungus Gnats vs Spider Mites
Tell these two common pests apart and pick the right fix for each.
Plant Pests & Diseases
How to Get Rid of Mealybugs on Houseplants
Learn how to get rid of mealybugs with isolation, alcohol swabs, neem oil, and insecticidal soap. A complete AGreenNest guide to save your infested houseplants.
Plant Pests & Diseases
Identifying Plant Pests Early
The first tiny signs that tell you a pest has arrived -- before it spreads.
Plant Pests & Diseases
Neem Oil: The Backyard Pest Fix
How to mix and use neem oil safely for houseplant pests, and why it is a beginner's best friend.
Plant Pests & Diseases
Pet-Safe Pest Control Indoors
How to deal with houseplant pests when cats and dogs share your home.
Plant Pests & Diseases
Powdery Mildew on Houseplants
The white dust on leaves, why it appears, and how to clear it.
Plant Pests & Diseases
How to Quarantine New Plants (and Why It Saves Your Collection)
A two-week isolation routine that stops pests before they spread to your healthy plants.
Plant Pests & Diseases
Root Rot First Aid: Saving a Soggy Plant
The step-by-step rescue when leaves wilt in wet soil and roots have gone mushy.
Plant Pests & Diseases
Saving a Plant After a Pest Outbreak
Step-by-step recovery: from isolation and treatment to helping the plant regrow.
Plant Pests & Diseases
How to Save a Plant With Root Rot
Save a plant with root rot by unpotting, trimming mushy roots, and repotting in gritty soil. A AGreenNest step-by-step recovery guide for overwatered plants.
Plant Pests & Diseases
Scale Insects on Houseplants: Identification and Treatment
Learn how to identify scale insects on houseplants and treat them with alcohol swabs, horticultural oil, neem oil, and systemic granules. AGreenNest guide.
Plant Pests & Diseases
Spider Mites on Houseplants: ID and Treatment
Identify spider mites by fine webbing and stippled leaves, then treat with neem oil, humidity, and quarantine. A AGreenNest guide to saving infested plants.
Plant Pests & Diseases
Sunburn vs Pest Damage: Telling Them Apart
How to read scorched leaves versus pest feeding so you treat the right problem.
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Plant Pests & Diseases
Houseplant Pests: The Complete Identification & Treatment Manual
Spot, name, and kill every common houseplant pest — with a fast identification table, safe treatment for each, and the routine that keeps them from coming back.
Plant Pests & Diseases
How to Get Rid of Mealybugs on Houseplants
Learn how to get rid of mealybugs with isolation, alcohol swabs, neem oil, and insecticidal soap. A complete AGreenNest guide to save your infested houseplants.
Plant Pests & Diseases
White Mold on Plant Soil: Clear It Fast
That white fuzzy growth on your potting soil is a harmless saprophyte, but it signals wet, stale conditions. Learn what it is, whether it hurts the plant, and how to clear it in a few days.
Plant Pests & Diseases
Bacterial Blight: Spots, Smell & How to Stop It
Bacterial blight and leaf spot cause foul-smelling water-soaked spots with yellow halos. Learn to prune, dry leaves, and treat with copper soap to save plants.
Plant Pests & Diseases
Caterpillars on Plants: Chewed Leaves & Quick Fixes
Caterpillars and leaf-chewing larvae leave holes and frass on indoor and patio plants. Learn to hand-pick, use neem oil, Bt, and insecticidal soap to stop them.