search
Identifying aphids on Hydrangea
Small green or black insects clustered on new growth and flower buds, often with sticky honeydew nearby.
cycle
Life cycle
Reproduce rapidly without mating in spring/summer. One female can produce 80+ offspring per week. Multiple generations per year.
warning
Damage to Hydrangea
Aphids sap-suck on tender new growth and developing flower buds, potentially reducing bloom quality if buds are heavily infested.
healing
How to treat aphids on Hydrangea
Spray forcefully with water to dislodge aphids, or apply insecticidal soap for persistent infestations. Encourage ladybirds in the garden.
shield
Preventing aphids on Hydrangea
Inspect new growth and buds regularly in spring, and avoid excess nitrogen fertiliser, which produces the soft growth aphids prefer.