Stigmella plagicolella

Scrubland pigmy

Description

Stigmella plagicolella, commonly known as the scrubland pigmy, is a small leaf-mining moth in the Nepticulidae family with a wingspan of 4–5 mm. Described by Stainton in 1854, it is found throughout Europe (excluding Iceland and Norway) and parts of the Near East. This species primarily targets plants in the Prunus genus, especially Prunus spinosa (blackthorn), but can also be found on other Prunus species, including cherries and plums. The larvae initially create slender, narow mines that widen into blotches at the end, giving the leaves a speckled, damaged look. Stigmella plagicolella has two generations per year, with adults flying from May to June and again in August. Although the species does not harm seriously the overall health of its host trees, the mines ca reduce the aesthetic appeal of the foliage, leaving blotchy patches that may detract from the tree’s appearance in gardens or parks.

Symptom

The leaves display narrow mines that gradually expand into round blotches. The mines contain a dark line of frass, initially narrow but spreading within the blotch. Attacked leaves have a speckled patterns on the leaves.

Tree Species: Cherry, Plum, Blackthorn

Part of a plant- attacked: Leaf / Needle

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes