Analysis on the effect of an invasive pest, Dryocosmus kuriphilus and its introduced parasitoid on the native host and parasitoid fauna

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Both long and short term impacts induced by an invasive pest, Dryocosmus kuriphilus, were simultaneously assessed in Japan where the pest was introduced more than half century ago and in Italy where the pest was found very recently. In Japan, D.kuriphilus has been successfully controlled by its natural enemy, Torymus sinensis, introduced from mainland of China, however, its direct effects on the closely related native parasitoids were clearly analyzed for the first time. Those results would lead a trial for the biological control of D.kuriphilus in Italy to its success in a short time.