Population Density of Aphelinus mali, a Parasite of Eriosoma lanigerum in Iraq

Author: EL-HAIDARI HAIDAR   GEORGIS R.   SALAM N.  

Publisher: Entomological Society of America

ISSN: 1938-2936

Source: Environmental Entomology, Vol.7, Iss.6, 1978-12, pp. : 913-914

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