Situation of Gonipterus scutellatus in Portugal
The Plant Protection Service of Portugal has recently confirmed that Gonipterus scutellatus (EPPO A2 quarantine pest) was found during a survey in the north of Portugal (see EPPO RS 96/213, 97/012). It is thought that the insect was introduced from Galicia (ES) where the pest is present, by natural adult flight. As there are no natural barriers and as the forest is continuous between the two regions, it is felt that nothing can prevent these migrations. Eradication of G. scutellatus is not considered feasible. A biological control programme against G. scutellatus is being implemented using the parasitoid Anaphes nitens.
Sources
Plant Protection Service of Portugal, 1997-08