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Aphis grossulariae

Gooseberry aphid

Description

The Aphis grossulariae, also known as the gooseberry aphid or gooseberry-willowherb aphid, forms dense colonies at the growing tips of gooseberry plants. These infestations cause severe deformation and clumping of the young leaves. The adult apterae (wingless form) are dull green to dark green and are slightly to moderately covered in wax. The antennae are shorter than the body. The alate (winged form) has a black head and thorax, a green abdomen with dark stripes, dark siphunculi and antennae, and a pale cauda. A new generation hatches around April, and populations increase towards the summer months. This species can cause significant damage to gooseberry plants by feeding on the sap, leading to the deformation of leaves and reduced plant health.

Symptom

Small green aphids on the back of the leaves. Leaves deformations.

Tree Species: Gooseberries

Part of a plant- attacked: Leaf / Needle

Pest significance: Harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes