Pest identification
What's eating my tetragona aurea hinoki cypress?
Cypress aphid (Cinara cupressi)
Signs: Yellowing then brown die-back of foliage, starting mid-canopy; sticky honeydew attracts sooty mold
Control: Spray with insecticidal soap or a systemic neonicotinoid (imidacloprid soil drench) for heavy infestations; encourage natural predators such as ladybirds
Spider mites (Tetranychus urticae)
Signs: Fine stippling and bronzing on foliage; fine webbing visible in dry, hot conditions
Control: Mist foliage to raise humidity; apply miticide or horticultural oil; repeat at 7-day intervals
Bagworm (Thyridopteryx ephemeraeformis)
Signs: Silken bags hanging from branches; defoliation of branch tips if populations are high
Control: Hand-pick bags in winter; apply Bt (Bacillus thuringiensis) or spinosad in early summer when larvae are small
Juniper scale (Carulaspis juniperi)
Signs: White or grey crusty encrustations on stems; yellowing and twig dieback
Control: Apply horticultural oil in early spring (crawler stage); prune and dispose of heavily infested stems
Keep tetragona aurea hinoki cypress pest-free
Healthy plants resist pests best. Get the basics right:
- What eats hinoki cypress bonsai — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Common tetragona aurea hinoki cypress problems & fixes
- Tetragona Aurea Hinoki Cypress watering schedule
- Tetragona Aurea Hinoki Cypress light requirements
- Full tetragona aurea hinoki cypress care guide
Tetragona Aurea Hinoki Cypress pests — FAQ
What is eating my tetragona aurea hinoki cypress?
Tetragona Aurea Hinoki Cypress is most threatened by cypress aphids and spider mites, which cause yellowing and browning foliage. Bagworms and scale insects also attack the foliage and stems. Inspect branch tips regularly and treat early infestations with horticultural oil or insecticidal soap before populations establish.
How do I get rid of cypress aphid (cinara cupressi) on tetragona aurea hinoki cypress?
Yellowing then brown die-back of foliage, starting mid-canopy; sticky honeydew attracts sooty mold Spray with insecticidal soap or a systemic neonicotinoid (imidacloprid soil drench) for heavy infestations; encourage natural predators such as ladybirds
How do I get rid of spider mites (tetranychus urticae) on tetragona aurea hinoki cypress?
Fine stippling and bronzing on foliage; fine webbing visible in dry, hot conditions Mist foliage to raise humidity; apply miticide or horticultural oil; repeat at 7-day intervals
How do I get rid of bagworm (thyridopteryx ephemeraeformis) on tetragona aurea hinoki cypress?
Silken bags hanging from branches; defoliation of branch tips if populations are high Hand-pick bags in winter; apply Bt (Bacillus thuringiensis) or spinosad in early summer when larvae are small
How do I get rid of juniper scale (carulaspis juniperi) on tetragona aurea hinoki cypress?
White or grey crusty encrustations on stems; yellowing and twig dieback Apply horticultural oil in early spring (crawler stage); prune and dispose of heavily infested stems