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Gilpinia virens

Pine sawfly Gilpinia virens

Description

Pine sawfly Gilpinia virens is a species of sawfly whose larvae are solitary feeders, primarily targeting pines, especially Scots pine (Pinus sylvestris). The larvae are characterized by their green body with stripes and a distinctive white sideline. They have an oval head with a black line running through the eye area, making them distinguishable from other Gilpinia species. Adult sawflies are 7–9 mm long. Gilpinia virens is found across Europe, particularly in regions with dense pine forests. The larvae feed on pine needles, and their activity can lead to defoliation, although they are generally less damaging than gregarious feeders. During outbreaks, significant needle loss can occur, which may weaken trees and reduce their growth.

Symptom

Defoliation of pines, especially Scots pine, caused by solitary feeding larvae. Symptoms include needle loss and reduced tree vigor, particularly noticeable during periods of high larval density (outbreaks).

Tree Species: Pine

Part of a plant- attacked: Leaf / Needle

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes