Test of the pathogenicity of two commercial Beauveria strains on third-instar larvae of the mango blossom gall midge, #Procontarinia mangiferae# (Felt) (Diptera: Cecidomyiidae)
2014
Bricca E. | Nibouche S. | Delatte H. | Normand F. | Amouroux P.
Introduction. The invasive gall midge, Procontarinia mangiferae (= Erosomyia mangiferae Felt), is one of the most important flowering pests of mango orchards worldwide. To achieve chemical input reduction, developing integrated pest management (IPM) strategies using bio-control agents is pertinent. Materials and methods. We tested the pathogenicity of two commercial strains of the entomopathogenic fungi Beauveria on non-diapausing 3rd-instar larvae of P. mangiferae. Results and discussion. Neither the Beauveria sp. commercial strain Betel nor the B. bassiana strain Bb 147 were effective, even though they proved their pathogenicity on the control, Galleria mellonella. Hypotheses to explain the inefficiency of the two strains on P. mangiferae are discussed. Conclusion. Other strains of Beauveria or other entomopathogenic fungi or nematodes should be tested on diapausing and non-diapausing larvae of P. mangiferae. (Résumé d'auteur)
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