Pest identification
What's eating my korean hornbeam bonsai?
Aphids
Signs: Curled, sticky new leaves; colonies clustering on emerging shoot tips in spring
Control: Remove by hand or rinse with water; treat with insecticidal soap or neem oil spray
Spider mites
Signs: Fine webbing and pale stippling on leaves; accelerated leaf drop in summer heat
Control: Boost humidity; apply neem oil or miticide; repeat applications every 5–7 days
Scale insects
Signs: Small brown bumps on bark; general decline and yellowing as sap is removed
Control: Scrub off scales with alcohol and a soft brush; apply horticultural oil during dormancy
Keep korean hornbeam bonsai pest-free
Healthy plants resist pests best. Get the basics right:
Korean Hornbeam Bonsai pests — FAQ
What is eating my korean hornbeam bonsai?
Korean Hornbeam Bonsai is most susceptible to aphids on its fine new growth and to spider mites in dry conditions. Scale insects can colonize the smooth bark, while caterpillars occasionally feed on foliage when the tree is kept outdoors. Prompt action at the first sign of any pest protects the delicate branch structure.
How do I get rid of aphids on korean hornbeam bonsai?
Curled, sticky new leaves; colonies clustering on emerging shoot tips in spring Remove by hand or rinse with water; treat with insecticidal soap or neem oil spray
How do I get rid of spider mites on korean hornbeam bonsai?
Fine webbing and pale stippling on leaves; accelerated leaf drop in summer heat Boost humidity; apply neem oil or miticide; repeat applications every 5–7 days
How do I get rid of scale insects on korean hornbeam bonsai?
Small brown bumps on bark; general decline and yellowing as sap is removed Scrub off scales with alcohol and a soft brush; apply horticultural oil during dormancy