mealybugs on Echeveria
Quick answer
If your Echeveria has mealybugs, the most likely cause is: Mealybugs are the most common pest affecting echeverias, targeting the tight rosette centers where leaves overlap and provide shelter. These sap-sucking insects excrete honeydew that promotes sooty mold growth. The waxy coating on mealybugs makes them resistant to standard water sprays, requiring targeted intervention.
Start here:
- 1. 1. Manual removal: Dip cotton swab in 70% isopropyl alcohol and dab each visible mealybug. Alcohol dissolves their waxy coating on contact.
- 2. 2. Spray treatment: Mix 1 tablespoon mild liquid soap + 1 cup 70% rubbing alcohol + 1 quart water. Spray entire plant, especially leaf axils, every 3 days for 3 treatments.
Why Echeveria gets mealybugs
Echeveria spp.
Mealybugs are the most common pest affecting echeverias, targeting the tight rosette centers where leaves overlap and provide shelter. These sap-sucking insects excrete honeydew that promotes sooty mold growth. The waxy coating on mealybugs makes them resistant to standard water sprays, requiring targeted intervention.
How to reverse mealybugs on Echeveria
- 1
1. Manual removal: Dip cotton swab in 70% isopropyl alcohol and dab each visible mealybug. Alcohol dissolves their waxy coating on contact.
- 2
2. Spray treatment: Mix 1 tablespoon mild liquid soap + 1 cup 70% rubbing alcohol + 1 quart water. Spray entire plant, especially leaf axils, every 3 days for 3 treatments.
- 3
3. Systemic for severe cases: Apply imidacloprid granules to soil per label instructions for ongoing protection lasting 6-8 weeks.
- 4
4. Inspect undersides: Check leaf undersides and base of plant weekly for 3 weeks after treatment to catch survivors.
- 5
5. Quarantine: Keep treated plant isolated until 2 weeks after last visible mealybug observed to prevent spread to other plants.
Keep mealybugs off this Echeveria
Inspect new plants thoroughly before introducing to collection. Isolate new acquisitions for 2 weeks. Avoid over-fertilizing which produces soft growth attractive to pests.