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Filtering by: Creator Flowers, Micahel Darrell, 1971- Degree Field Entomology

Evaluating Leucopis species (Diptera: Chamaemyiidae) from the Pacific Northwest as potential biological control agents of the hemlock woolly adelgid (Hemiptera: Adelgidae)

Creator:

Grubin, Sarah M.

Abstract:

Hemlock woolly adelgid, Adelges tsugae Annand, is a destructive introduced pest of hemlock trees in eastern North America, and management has focused on the use of natural enemies through classical biological control. Two species of chamaemyiid flies, Leucopis argenticollis Zetterstedt and Leucopis atrifacies (Aldrich) have been collected previously from western...

Resource Type:

Masters Thesis

Full Text:

Approved: Darrell W. Ross Kimberly F. Wallin Hemlock woolly adelgid, Adelges tsugae
Effects of temperature and other abiotic and biotic factors on development and survival of the immature stages of the alfalfa leafcutting bee, Megachile pacifica (Panzer) (=rotundata (F.)) (Hymenoptera:Megachilidae)

Creator:

Undurraga O., Jaime M.

Abstract:

Larval mortality of leafcutting bee, Megachile pacifica (Panzer) (= rotundata (F.)), is high, usually exceeding 50%. Parasites and predators are not a limiting factor in the survival of the progeny. The disease chalk brood has been an important mortality factor since 1974. Inadequate food supply, pollen and nectar, may affect...

Resource Type:

Dissertation

Full Text:

Dority, William Panike, Darrell Panike, George Schiemer, Robert Ure and Van Ure, of Malheur County, for