scale insects on Jade Plant
Quick answer
If your Jade Plant has scale insects, the most likely cause is: Scale insects (primarily Coccus hesperidum and related species) infest jade plants, appearing as small brown or tan bumps on leaves and stems. These sap-sucking pests attach permanently to plant tissue, feeding on phloem and excreting honeydew that promotes sooty mold growth. Jade plants are particularly susceptible due to their fleshy, nutrient-rich tissue and the sheltered environment of leaf axils where scales colonize undetected.
Start here:
- 1. Inspect entire plant with magnifying glass to identify all scale locations
- 2. Wipe visible scales with cotton swab dipped in 70% isopropyl alcohol to dissolve protective coating
Why Jade Plant gets scale insects
Crassula ovata
Scale insects (primarily Coccus hesperidum and related species) infest jade plants, appearing as small brown or tan bumps on leaves and stems. These sap-sucking pests attach permanently to plant tissue, feeding on phloem and excreting honeydew that promotes sooty mold growth. Jade plants are particularly susceptible due to their fleshy, nutrient-rich tissue and the sheltered environment of leaf axils where scales colonize undetected.
How to reverse scale insects on Jade Plant
- 1
Inspect entire plant with magnifying glass to identify all scale locations
- 2
Wipe visible scales with cotton swab dipped in 70% isopropyl alcohol to dissolve protective coating
- 3
Apply neem oil or horticultural oil every 7-10 days for 4-6 weeks to smother crawlers
- 4
For severe infestations: Use systemic insecticide containing imidacloprid as soil drench
- 5
Isolate infected plant until 2 weeks after last visible scale is removed
Keep scale insects off this Jade Plant
Quarantine new plants for 14 days before introducing to collection. Inspect leaf undersides and stem joints weekly with 10x magnification. Maintain proper spacing between plants for airflow. Avoid over-fertilization which produces soft, nitrogen-rich growth that attracts scales.