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Identifying aphids on Wisteria
Clusters of small green or black insects on new shoot tips and the undersides of young leaves, often with curled growth and sticky honeydew nearby.
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Life cycle
Reproduce rapidly without mating in spring/summer. One female can produce 80+ offspring per week. Multiple generations per year.
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Damage to Wisteria
Aphids sap-suck on tender new growth, causing curled leaves and stunted shoots, with honeydew attracting sooty mould on foliage below, though rarely seriously harming an established vine.
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How to treat aphids on Wisteria
Spray forcefully with water to dislodge aphids on accessible growth, or apply insecticidal soap for persistent infestations. Encourage ladybirds in the garden.
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Preventing aphids on Wisteria
Avoid excessive nitrogen fertiliser, which produces the soft new growth aphids prefer, and encourage beneficial insects nearby.