Pest identification
What's eating my geranium cinereum var. subcaulescens?
Vine weevil
Signs: Root destruction by larvae causes rapid plant collapse; adult notching of leaf margins is the first visible warning
Control: Apply nematode (Steinernema kraussei) drench to damp soil in late summer; grow in gritty, free-draining compost to slow weevil egg development
Slugs and snails
Signs: Foliage and flower stems are rasped at ground level; damage worst in wet or humid weather
Control: Use iron phosphate pellets or sharp grit mulch; hand-pick after dark; improve drainage to reduce slug habitat
Aphids
Signs: Soft-bodied colonies on new shoot growth cause leaf curl and honeydew deposits
Control: Spray with a strong water jet or insecticidal soap; ladybirds and parasitic wasps provide effective natural control
Keep geranium cinereum var. subcaulescens pest-free
Healthy plants resist pests best. Get the basics right:
- What eats grayleaf cranesbill — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Common geranium cinereum var. subcaulescens problems & fixes
- Geranium cinereum var. subcaulescens watering schedule
- Geranium cinereum var. subcaulescens light requirements
- Full geranium cinereum var. subcaulescens care guide
Geranium cinereum var. subcaulescens pests — FAQ
What is eating my geranium cinereum var. subcaulescens?
Geranium cinereum var. subcaulescens is a low-growing alpine from Balkan rocky habitats. Its small root mass makes it especially vulnerable to vine weevil grubs. Slugs and snails can devastate new growth in rainy weather. Aphids are occasional visitors on tender spring shoots.
How do I get rid of vine weevil on geranium cinereum var. subcaulescens?
Root destruction by larvae causes rapid plant collapse; adult notching of leaf margins is the first visible warning Apply nematode (Steinernema kraussei) drench to damp soil in late summer; grow in gritty, free-draining compost to slow weevil egg development
How do I get rid of slugs and snails on geranium cinereum var. subcaulescens?
Foliage and flower stems are rasped at ground level; damage worst in wet or humid weather Use iron phosphate pellets or sharp grit mulch; hand-pick after dark; improve drainage to reduce slug habitat
How do I get rid of aphids on geranium cinereum var. subcaulescens?
Soft-bodied colonies on new shoot growth cause leaf curl and honeydew deposits Spray with a strong water jet or insecticidal soap; ladybirds and parasitic wasps provide effective natural control