Browsing Extension Service -- Circulars / Extension Circulars by Author "Ambrosino, Mario D."

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A pocket guide: common natural enemies of crop and garden pests in the Pacific Northwest

Oregon State University. Extension Service; Ambrosino, Mario D. ([Corvallis, Or.] : Oregon State University, Extension Service, 2007-12)

The cards in this guide are designed to help you quickly learn the main groups of natural enemies of crop and garden pests, their predacious activity, and tips for observing them. Photographs are of the most common s ...