Estimating Predatory Efficiency of Episyrphus balteatus (Diptera: Syrphidae) in Cereal Fields

Author: TENHUMBERG BRIGITIE  

Publisher: Entomological Society of America

ISSN: 1938-2936

Source: Environmental Entomology, Vol.24, Iss.3, 1995-06, pp. : 687-691

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