Pest identification
What's eating my blue chalksticks?
Mealybugs
Signs: White cottony deposits where cylindrical leaves meet stems; affected stems may yellow and shrivel.
Control: Spot-treat with 70% isopropyl alcohol on cotton swabs at every leaf axil. Repeat weekly for four to six weeks.
Aphids
Signs: Small colonies on soft new growth, especially on outdoor plants in spring; sticky honeydew and leaf distortion.
Control: Knock off with a firm water spray; treat with insecticidal soap or dilute neem oil. Most infestations clear quickly on this species.
Scale insects
Signs: Flat, waxy brown discs on stems; slow decline and sticky residue on leaves below the feeding site.
Control: Scrape off with a soft toothbrush and follow with an alcohol wipe. Inspect again in two weeks.
Keep blue chalksticks pest-free
Healthy plants resist pests best. Get the basics right:
- What eats blue chalk sticks — the species this cultivar belongs to
- What eats blue chalksticks — our other guide for the same plant
- PictureThis alternatives — 7 plant ID apps compared
- Common blue chalksticks problems & fixes
- Blue Chalksticks watering schedule
- Blue Chalksticks light requirements
- Full blue chalksticks care guide
Blue Chalksticks pests — FAQ
What is eating my blue chalksticks?
Blue Chalksticks (Curio repens) is a trailing succulent mainly affected by mealybugs in its leaf axils and aphids when grown outdoors. Scale insects occasionally colonise the stems. Like all Curio/Senecio-type succulents it is susceptible to root rot if overwatered, which weakens plants and invites secondary pest pressure.
How do I get rid of mealybugs on blue chalksticks?
White cottony deposits where cylindrical leaves meet stems; affected stems may yellow and shrivel. Spot-treat with 70% isopropyl alcohol on cotton swabs at every leaf axil. Repeat weekly for four to six weeks.
How do I get rid of aphids on blue chalksticks?
Small colonies on soft new growth, especially on outdoor plants in spring; sticky honeydew and leaf distortion. Knock off with a firm water spray; treat with insecticidal soap or dilute neem oil. Most infestations clear quickly on this species.
How do I get rid of scale insects on blue chalksticks?
Flat, waxy brown discs on stems; slow decline and sticky residue on leaves below the feeding site. Scrape off with a soft toothbrush and follow with an alcohol wipe. Inspect again in two weeks.