Ferrero M, Kreiter S & Tixier M-S (2008). Ability of Phytoseiulus longipes to control spider mite pests on tomato in European greenhouses. Integrative Acarology, Proceedings of the 6th EURAAC, 461-468. 21-25th July 2008, Montpellier (France).

1. Ability of Phytoseiulus longipes to control spider mite pests in European tomato greenhouses Maxime FERRERO, Serge KREITER, Marie-Stéphane TIXIER 6 th Symposium of European Association of Acarologists Montpellier 21-25th July 2008 Montpellier SupAgro UMR CBGP 1062, équipe acariens 2 Place Pierre Viala, 34060 Montpellier Cedex 01, France

8. Results : intrinsic rate of natural increase of some Phytoseiulus species on Solanaceae P. longipes C unable to control T. evansi nor T. urticae populations on Solanaceae, but P. longipes B could ! T. evansi r m on tomato (Bonato et al. 1999) r m T. urticae r m on tomato (Castagnoli et al. 2003) 0 0,05 0,1 0,15 0,2 0,25 0,3 P. longipes B P. longipes C P. fragariae T. evansi T. urticae

9. Results : Intrinsic rate of natural increase of some Phytoseiulus species on « Beans » r m T. urticae r m on bean (van Impe 1985) Remark results on T. evansi / bean with adapted strains ? Conclusion all strains tested of P. longipes could have similar efficiency than P. persimilis on T. urticae on non Solanaceae plants

10. Conclusions & perspectives 1. P. longipes C is not a candidate for being a biological agent on tomato crops BUT A rgentinean and B razilian strains could be ! 2. All strains of P. longipes have the potential to be biological control agents of T. urticae on other crops !

13. Thanks for attention ! 6 th Symposium of European Association of Acarologists