Plant Problems & Pests
Diagnosis-first help for symptoms, root trouble, and common houseplant pests
9 reviewed guides
Guides in this topic
Fungus Gnats in Houseplants: An Evidence-Based Plan
Confirm fungus gnats, interrupt their moist-soil life cycle, and use targeted controls safely with this step-by-step indoor plant plan.
Read the guide →Mealybugs on Houseplants: Identification and IPM Treatment
Confirm mealybugs, isolate the plant, reduce the population mechanically, and use label-compliant treatment only when monitoring shows it is necessary.
Read the guide →Why Monstera Leaves Do Not Split: A Diagnostic Guide
Diagnose solid Monstera leaves by checking plant identity, growth stage, light, support, roots, and care—without forcing fenestration.
Read the guide →Why a Peace Lily Droops: A Diagnostic Guide
Distinguish dry-soil wilt from saturated roots, light stress, cold injury, pests, and transplant shock before treating a drooping peace lily.
Read the guide →Pothos Leaves Turning Yellow: A Diagnosis-First Guide
Yellow pothos leaves are a symptom, not a diagnosis. Use the pattern, root-zone condition, light, and pest evidence to choose the safest corrective action.
Read the guide →Houseplant Root Rot: How to Identify It and What to Do Next
Learn how to distinguish suspicious wilting from confirmed root damage, inspect a houseplant safely, salvage healthy tissue, and prevent another waterlogged pot.
Read the guide →Scale Insects on Houseplants: Identification and IPM Control
Distinguish soft from armored scale, verify which covers are alive, monitor for crawlers, and use mechanical or label-compliant controls according to the evidence.
Read the guide →Spider Mites on Houseplants: Diagnosis and IPM Control
Confirm live spider mites before treating, then use isolation, monitoring, water removal, plant care, and a label-compliant miticide only when needed.
Read the guide →Thrips on Houseplants: Identification, Monitoring, and IPM
Distinguish active thrips from old damage, use traps as monitors rather than cures, and build an adaptive IPM response around the pest, plant, and pesticide label.
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Browse Plant Topics
Houseplants & Indoor Spaces
Plant selection, setup, routine care, and evidence about plants in homes and workplaces
13 guidesPlant Problems & Pests
Diagnosis-first help for symptoms, root trouble, and common houseplant pests
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