Update on the occurrence of Rhagoletis completa in the EU (Italy)
Rhagoletis completa (EPPO A1 quarantine pest) is present in Italy as reported in the EPPO Reporting Service 93/210 (1993, No. 11). The walnut husk fly can be found in Northern Italy in the areas of Milano, Varese, Pavia, Novara and Sondrio. According to reports walnut fruits were up to 50% infested by the fruit fly in some orchards. Beside the records from Piemonte and Lombardia the pest can be also found, as reported earlier, in Friuli-Venezia Giulia in the area of Treviso.
Sources
Ciampolini, M.; Trematerra, P. (1992) Diffusa presenza di mosca delle noci (Rhagoletis completa) nel nord Italia.
L'Informatore Agrario 48, 1992, 52-56