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Arge ochropus

Rose sawfly

Description

Arge ochropus, the rose sawfly is a known pest on roses. The 7–10 mm long adults fly in May–June. Eggs are laid in rows on young vegetative shoots or on flower stalks. Young larvae first feed on the lower epidermis, later on they chew through the leaf tissue completely. Normally has one generation, but in favorable years a 2^nd brood may develop in autumn. Widely distributed. Common on both cultivated and wild roses in Central Europe. There is wide spectrum of other sawflies species, feeding on roses in Europe

Symptom

 Leaves consumed from the sides, sometimes entire leaves are missing and only leaf stalks remain.

Tree Species: Rose

Part of a plant- attacked: Leaf / Needle

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes