Strawberry aphid
Chaetosiphon fragaefolii
List of symptoms/signs
Fruit - honeydew or sooty mould
Growing point - external feeding
Inflorescence - honeydew or sooty mould
Leaves - external feeding
Leaves - honeydew or sooty mould
Leaves - wilting
Stems - external feeding
Stems - honeydew or sooty mould
Vegetative organs - external feeding
Whole plant - external feeding
Symptoms
Aphids feed on strawberry leaves, particularly on unfolding leaves. Aphid individuals concentrate on the underside of a leaf along main veins, particularly at the base of a petiole. In higher numbers, aphids inhibit plant growth and development, and sooty mould develops on the abundant honeydew. They could induce plant withering in susceptible cultivars. C. fragaefolii is the major vector of strawberry viruses: symptoms of virus diseases should also be considered when observing the symptoms of aphid atttack.
The severity of symptoms of C. fragaefolii attack varies depending on cultivar resistance. In resistant strawberry species and cultivars, the aphid develops in colonies in low numbers and without visible symptoms on plants. In the susceptible cultivated strawberry cultivars (and the majority of them are susceptible), however, the number of colonies is high, particularly during pronounced peaks (May-June and September-October).
Aphids feed on strawberry leaves, particularly on unfolding leaves. Aphid individuals concentrate on the underside of a leaf along main veins, particularly at the base of a petiole. In higher numbers, aphids inhibit plant growth and development, and sooty mould develops on the abundant honeydew. They could induce plant withering in susceptible cultivars. C. fragaefolii is the major vector of strawberry viruses: symptoms of virus diseases should also be considered when observing the symptoms of aphid atttack.
The severity of symptoms of C. fragaefolii attack varies depending on cultivar resistance. In resistant strawberry species and cultivars, the aphid develops in colonies in low numbers and without visible symptoms on plants. In the susceptible cultivated strawberry cultivars (and the majority of them are susceptible), however, the number of colonies is high, particularly during pronounced peaks (May-June and September-October).
Plant Protection Products
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