Pammene rhediella Clerck Fruitletmining tortrix moth

This species is a pest of apple and plum. The larvae mine within the developing fruitlets that then either drop prematurely or, if damaged only superficially, will mature on the tree and bear corky scars.

Fig. 296 Dark strawberry tortrix moth, Olethreutes lacunana (x6).


Adults are active in May and June, and often fly in sunny weather. Eggs are deposited singly on leaves growing close to developing fruitlets. The eggs hatch about 2 weeks later. Larvae then attack the fruitlets. They graze on the skin and also penetrate deeply into the flesh. Unlike other related species, the larvae web fruitlets and adjacent leaves together with strands of silk, amongst which particles of frass expelled from their feeding galleries accumulate; galleries in infested fruits, however, are typically frass-free (cf. codling moth, Cydia pomonella, p. 218, and plum fruit moth, C. funebrana, p. 217). In late June or early July, the fully-fed larvae seek shelter on the bark of host trees and spin hibernacula. They then overwinter and pupate in the spring, shortly before the emergence of the adults.


Adult 9-11 mm wingspan; forewings dark purplish-brown basally and centrally, orange apically; hindwings dark brown (Fig. 297). Larva up to 6 mm long; body whitish; pinacula light brown; head, prothoracic plate, anal plate and anal comb brown.

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