Virulence of Fungal Pathogens (Imperfect Fungi: Hyphomycetes) to Pear Psylla (Homoptera: Psyllidae)

Author： PUTERKA G. J.   HUMBER R. A.   POPRAWSKI T. J.  

Publisher： Entomological Society of America

ISSN： 1938-2936

Source： Environmental Entomology, Vol.23, Iss.2, 1994-04, pp. : 514-520

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