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Filtering by: Subject Strawberries -- Diseases and pests Committee Member Fisher, Glenn Decade 2000-2009

Biology and management of the obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae), in sweet cherry

Creator:

Omeg, Michael Kent

Abstract:

The seasonal biology of the obliquebanded leafroller, Choristoneura rosaceana (Harris), was studied to improve its management in Mid-Columbia area sweet cherry orchards. Overwintering OBLR larvae began to emerge from hibernacula at bud stage 2 (side green). Most overwintering larvae emerged from hibernacula within three weeks of first bud swell and...

Resource Type:

Masters Thesis

Full Text:

the United States and southern Canada (Chapman and Lienk 1971). OBLR is a pest in many cropping
Biology and management of Meloidogyne chitwoodi using oxamyl on potato in the western United States

Creator:

David, Nicholas L.

Abstract:

Field trials were conducted during 2001 to 2003 to investigate soil population dynamics of Meloidogyne chitwoodi, tuber symptom suppression using oxamyl, and post-harvest tuber symptom development on short-season potato varieties Russet Norkotah and Russet Nugget (San Luis Valley only). The experiments were located in the San Luis Valley in Colorado,...

Resource Type:

Dissertation

Full Text:

vitro tests. Plant Disease 73:957-959. Brown, C.R., H. Mojtahedi, and G.S. Santo. 1991. Resistance
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:

approved: Four key aspects of the relationship between predatory hoverflies and the aphid pest