Mealybugs
Pseudococcidae
Sap-Sucking Insects Moderate Risk 2-5 mm
📖 Description
Mealybugs are sap-sucking insects protected by a white waxy coating that makes them resistant to many contact insecticides. They cluster in protected areas like leaf axils, stem joints, and roots, feeding on plant sap and excreting honeydew. Root mealybugs are particularly difficult to detect and eliminate, as they live below the soil surface. Heavy infestations can cause significant plant decline and even death if left untreated.
⚠️ Symptoms to watch for
- White cottony masses on stems and leaf joints
- Sticky honeydew and sooty mold
- Yellowing leaves and stunted growth
- Wilting despite adequate watering
- Leaf drop in severe infestations
🩹 Treatment
- Dab individual bugs with a cotton swab dipped in rubbing alcohol (organic)
- Spray with insecticidal soap thoroughly (organic)
- Release cryptolaemus beetles (mealybug destroyers) (organic)
- Apply neem oil to all plant surfaces (organic)
- Use systemic insecticide containing imidacloprid (chemical)
- Spray with acephate-based insecticide (chemical)
🌿 Organic treatments
- Dab individual bugs with a cotton swab dipped in rubbing alcohol
- Spray with insecticidal soap thoroughly
- Release cryptolaemus beetles (mealybug destroyers)
- Apply neem oil to all plant surfaces
🧪 Chemical treatments
- Use systemic insecticide containing imidacloprid
- Spray with acephate-based insecticide
🛡️ Prevention
- Quarantine new plants for 2-3 weeks before adding to collection
- Inspect undersides of leaves and leaf axils regularly
- Avoid over-fertilizing with nitrogen which attracts mealybugs
- Maintain good air circulation around plants
- Remove dead leaves and debris where mealybugs hide
🪴 Affected plants
- Succulents
- Orchids
- Tropical Plants
- Indoor Plants
- Citrus Trees
- Ferns
🦋 Natural predators
- Mealybug Destroyers
- Green Lacewings
- Ladybugs
🌱 Host plants
- Orchidaceae spp.
- Citrus spp.
- Succulents
🔄 Lifecycle
- Females lay 300-600 eggs in cottony egg masses over 1-2 weeks.
- Eggs hatch in 6-14 days into tiny crawlers that actively seek feeding sites.
- Crawlers settle within 1-2 days and begin secreting wax.
- Females develop through 3 nymphal stages over 4-6 weeks.
- Males are rare, tiny, and winged, existing only to mate.
- Some species reproduce parthenogenetically.
📅 Season
- Year-round indoors, Spring-Summer outdoors
🔎 Appearance
- Small, oval, soft-bodied insects covered in white, cottony or powdery wax.
- Look like tiny tufts of cotton clustered in leaf axils, stems, and roots.
💥 Damage level
- Moderate
🔁 Reproduction rate
- Fast
🗺️ Geographic regions
- North America
- South America
- Africa
- Asia
Have an Insect to Identify?
Upload or take a photo of an insect on your plant and our AI will identify it and recommend treatments.
📷 Diagnose from Image