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
Brown Spots on Leaves: Fungal vs Bacterial Leaf Spot
Brown or black spots with yellow halos are leaf spot. Tell fungal from bacterial by the halo and the spread, then prune, improve airflow, and spray a targeted fix within 48 hours.
Plant Pests & Diseases
5 Plant Disease Myths I Wish I'd Stopped Believing
Old wives' tales about yellow leaves and cinnamon cures cost plants their lives. I checked the research and the clinic samples, and here are the five disease myths that do real damage.
Plant Pests & Diseases
Broad Mites: Why New Leaves Come Out Twisted
Broad mites are microscopic pests that twist new leaves into a shiny, blistered mess. Learn the signs, how to confirm them with a 10x loupe, and a three week plan to clear them.
Plant Pests & Diseases
Scale Insects on Houseplants: Remove Them Fast
Those little brown bumps stuck to your stems are scale, sap-sucking insects that leave sticky honeydew and black soot. Learn to spot them, scrub them off, and stop them returning in three weeks.
Plant Pests & Diseases
Root Mealybugs: Spot Them and Kill Them
Root mealybugs hide below the soil and starve a plant slowly. Learn how to spot the white waxy crust on the roots, why they appear, and a 48-hour bare-root fix that saves the plant.
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
I Tested 4 Fungus Gnat Traps on 12 Plants
I ran yellow cards, a vinegar bowl, a BTI dunk, and a sand top dressing across 12 gnat infested plants for 14 days. Here are the real catch counts and which combo actually cleared them.
Plant Pests & Diseases
I Saved My Monstera from Spider Mites
A first-person week-by-week rescue of a Monstera deliciosa hit by spider mites: shower, soap wipe, neem every three days, and raised humidity cleared the colony in about three weeks.
Plant Pests & Diseases
5 Plant Pest Control Myths Busted
Think soapy water kills every bug, or that more neem is always better? We bust five houseplant pest-control myths and explain what works to clear pests.
Plant Pests & Diseases
Botrytis Gray Mold: Save Plants in 48 Hours
Gray fuzzy mold on flowers and stems? Botrytis cinerea thrives in damp, still air. Learn the common causes and a 48-hour rescue plan to save your plants.
Plant Pests & Diseases
Downy Mildew on Houseplants: Spot It and Stop It in 48 Hours
Downy mildew looks like dust on the leaf underside and yellow patches on top. Catch the cause, isolate the plant, and treat within 48 hours to save it.
Plant Pests & Diseases
Black Leaf Coating? Sooty Mold 48-Hour Fix
Black leaf coating? Sooty mold feeds on honeydew from aphids, mealybugs, scale and whitefly. Get a 48-hour fix to clean leaves and stop the pests for good.
Plant Pests & Diseases
Whiteflies on Houseplants: Spot Them and Clear Them in 48 Hours
Whiteflies rise in a cloud when you touch the leaves and leave sticky honeydew behind. Find the cause, isolate the plant, and treat the undersides within 48 hours to stop the spread.
Plant Pests & Diseases
I Rescued a Fiddle Leaf Fig from Scale
A first-person week-by-week rescue of a Ficus lyrata covered in scale insects: isolation, alcohol swabs, neem oil, and the new leaves that proved it worked.
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.
Plant Pests & Diseases
Damping-Off in Seedlings: Causes & Easy Prevention
Damping-off makes seedlings collapse at the soil line from Pythium and fungi. Learn to use sterile mix, bottom water, and cinnamon to prevent seedling killer.
Plant Pests & Diseases
Rust Fungus on Houseplants: ID, Treatment & Prevention
Orange and yellow rust fungus pustules on houseplant leaves? Learn what rust looks like, why it spreads, and how to treat and prevent it with neem oil.
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
Brown Leaf Tips on Houseplants: 4 Common Causes
Discover why houseplant leaf tips turn brown from low humidity, tap water, watering mistakes and salt buildup, with fixes: distilled water and humidity trays.
Plant Pests & Diseases
How to Deal With Aphids
Aphids: what it looks like, why it happens, and the fix. Clusters of soft green/yellow bugs on new growth; sticky leaves.
Plant Pests & Diseases
How to Deal With Edema
Edema: what it looks like, why it happens, and the fix. Blistered, corky, or watery bumps on the undersides of leaves.
Plant Pests & Diseases
How to Deal With Etiolation (Too Little Light)
Etiolation (Too Little Light): what it looks like, why it happens, and the fix. Pale, stretched, leaning growth with wide gaps between leaves.
Plant Pests & Diseases
How to Deal With Fungus Gnats
Fungus Gnats: what it looks like, why it happens, and the fix. Tiny black flies hovering over the soil surface.
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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.