Plum moth
Grapholita funebrana
This description was machine-translated.
How to spot it
The plum moth is the stone fruit counterpart to the codling moth: from June onwards the moth lays eggs on young fruit, the caterpillar bores its way through to the stone and triggers gummosis as well as premature, "false" ripening with fruit drop. Cut open fruit reveals the reddish caterpillar and a frass filled tunnel. In a warm late summer a more damaging second generation follows in August.
Prevention
Hang up pheromone traps from the beginning of June to monitor the flight and put corrugated cardboard trapping bands around the trunk, in which the caterpillars pupate. Check the trapping bands regularly and dispose of them. Collect infested windfall daily, brush off loose old bark and encourage tits and earwigs as natural antagonists; under heavy pressure a granulosis virus preparation (Cydia pomonella granulovirus) helps once the pheromone traps have given warning.
Affected plants
These plants in our database are especially susceptible.
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