Bulletin of Insectology (2013) 66, 195-201

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Tiziana Panzavolta, Umberto Bernardo, Matteo Bracalini, Pasquale Cascone, Francesco Croci, Marco Gebiola, Luigi Iodice, Riziero Tiberi and Emilio Guerrieri (2013)
Native parasitoids associated with Dryocosmus kuriphilus in Tuscany, Italy
Bulletin of Insectology 66 (2), 195-201
Abstract: The invasive Dryocosmus kuriphilus Yasumatsu (Hymenoptera Cynipidae) is a major pest of Castanea spp. in Asia, the USA and Europe. The aim of this study is to characterize the parasitoid community associated to D. kuriphilus in Tuscany and determine their relative occurrence, before the introduction of the exotic parasitoid Torymus sinensis Kamijo. Ten hymenopteran parasitoids were collected from D. kuriphilus galls. Mesopolobus fasciiventris Westwood is reported for the first time as a D. kuriphilus associate in Italy. Torymus flavipes (Walker) specimens accounted for more than 50% of all collected parasitoids. Facultative hyperparasitoid species were also collected. Furthermore, a higher overall parasitism rate was found on wild chestnut galls (with respect to cultivated ones) and where oak trees were more abundant.
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Database assignments for author(s): Tiziana Panzavolta, Umberto Bernardo, Emilio Guerrieri, Pasquale Cascone

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Dryocosmus kuriphilus Chestnut (Castanea) Italy
Eupelmus urozonus (parasitoid) Dryocosmus kuriphilus Chestnut (Castanea) Croatia
Eupelmus urozonus (parasitoid) Dryocosmus kuriphilus Chestnut (Castanea) Italy
Torymus sinensis (parasitoid) Dryocosmus kuriphilus
Mesopolobus dubius (parasitoid) Dryocosmus kuriphilus Chestnut (Castanea) Croatia
Torymus flavipes (parasitoid) Dryocosmus kuriphilus Chestnut (Castanea) Croatia
Torymus flavipes (parasitoid) Dryocosmus kuriphilus Chestnut (Castanea) Italy
Mesopolobus tibialis (parasitoid) Dryocosmus kuriphilus Chestnut (Castanea) Croatia
Bootanomyia dorsalis (parasitoid) Dryocosmus kuriphilus Chestnut (Castanea) Croatia
Torymus geranii (parasitoid) Dryocosmus kuriphilus Chestnut (Castanea) Croatia