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Filtering by: Advisor Dunn, John M. Subject Broccoli -- Diseases and pests -- Biological control -- Oregon -- Willamette River Valley

Enhancing the predatory potential of hoverflies on aphids in Oregon broccoli fields with floral resources

Creator:

Ambrosino, Mario D.

Abstract:

Four key aspects of the relationship between predatory hoverflies and the aphid pest Brevicoryne brassicae L. on broccoli were investigated in the Willamette Valley, Oregon USA: 1) the relationship between aphid density and hoverfly oviposition, 2) the larval voracity of key hoverfly species, 3) the preferences of hoverflies and broccoli...

Resource Type:

Dissertation

Full Text:

and Myzus persicae (Suizer)). The magnitude of the response was similar for B. brassicae and M