Effect of Tree Fertilization on Protein and Free Amino Acid Content and Feeding Rate of Pear Psylla (Homoptera: Psyllidae)

Author： PFEIFFER D. G.   BURTS E. C.  

Publisher： Entomological Society of America

ISSN： 1938-2936

Source： Environmental Entomology, Vol.13, Iss.6, 1984-12, pp. : 1487-1490

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