Pollini, A., & Bariselli, M. 1998 [Strategy of integrated control against the migration of larvae of the San Jose scale (Comstockaspis perniciosa) in pear orchards in Emilia-Romagna (Italy).]. First transnational workshop on biological, integrated and rational control: status and perspectives with regard to regional and European experiences Service Regional de la Protection des Vegetaux, Nord Pas-De-Calais Loos-en-Gohelle

Notes: [Original title: Strategie de lutte integrée contre la migration des larves de pou de San José (Comstockaspis perniciosa) en vergers de poiriers en Emilia-Romagna (Italie). Conference held in Lille, France, 21-23 January 1998.] The San Jose scale (Comstockaspis perniciosa (Diaspidiotus perniciosus)) is an increasing threat to pome fruits orchards in the region Emilia-Romagna, Italy. A field study was carried out during 1996 in 2 pear orchards (cultivars Rosada and William). Applications after leaf fall with polysulfide, buprofezin or white oil products were the basis of the control strategy. High infestation levels demand insecticide spraying during spring and summer at larvae hatching. Microencapsulated formulations of fenitrothion and chlorpyrifos provided good control when applied in spring (at the start of migration of first generation larvae) and resulted in a reduced number of sprayings later in the season.