Lampronia rubiella Bjerkander Raspberry moth

This moth is a locally important pest of loganberry and raspberry. Larvae destroy the buds and lateral shoot and, if infestations are heavy, fruit yields are reduced significantly.

BIOLOGY

Moths are active in May, June or July, and eggs are laid singly in the open flowers of host plants. After egg hatch, each larva feeds on the surface of the developing fruit before tunnelling into the receptacle. When approximately 3 weeks old, the larvae drop to the ground and enter the soil. Here they remain until the following spring. At bud burst, the larvae reappear and invade the buds or young shoots; several are attacked during the course of larval development. Fully fed larvae pupate within silken cocoons spun on the host plant or on posts and other surfaces. Adults emerge about 3 weeks later.

DESCRIPTION

Adult 9-12 mm wingspan; head yellowish; forewings dark purplish-brown to golden-brown, speckled with creamish-yellow; hindwings purplish-grey (Fig. 269). Larva up to 8 mm long; body red; head, prothoracic plate and anal plate black.

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