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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
Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Tetranychus evansi  Baker &Pritchard ,[object Object],[object Object],[object Object],[object Object],Project presentation (1/2) A new solution is needed Tetranychus urticae  Koch
Project presentation (2/2) Phytoseiulus longipes  Evans ,[object Object],[object Object],[object Object],[object Object],P. persimilis P. macropilis P. fragariae Phytoseiulus
Life history of the Chilean strain of  P. longipes  at several prey/ plant conditions ,[object Object],[object Object],[object Object],[object Object]
Material and Methods ,[object Object],[object Object],[object Object],[object Object],[object Object]
Results : Immature phases development ,[object Object],[object Object],[object Object],[object Object]
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
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
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 !
Other experiments done or on the way … ,[object Object],[object Object],Petri dish Leaf disks « Bridge » Humidified cotton 1 2
Other experiments done or on the way … ,[object Object]
Thanks for attention ! 6 th  Symposium of European Association of Acarologists

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Ferrero et al. Euraac 2008

  • 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
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 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 !
  • 11.
  • 12.
  • 13. Thanks for attention ! 6 th Symposium of European Association of Acarologists