Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Creator Frost, Hans Committee Member Jepson, Paul

Biological control of purple loosestrife Lythrum salicaria by two chrysomelid beetles Galerucella pusilla and G. calmariensis

Creator:

Schooler, Shon

Abstract:

In the first part of this study we monitored the development of biological control of purple loosestrife Lythrum salicaria over a six-year period at Morgan Lake in western Oregon. In 1992, two beetles, Galerucella pusilla and G. calmariensis (Coleoptera: Chrysomelidae), were released to control the wetland weed at this test...

Resource Type:

Masters Thesis

Full Text:

perspective with his sense of humor and eternal optimism. Hans Luh, the computer guru, helped with
Host selection, reproductive biology, host-specific development and mortality of the codling moth, Cydia pomonella (L.) (Lepidoptera: Torticidae), in apple and pear

Creator:

Marti, Santiago Marti

Abstract:

The biology and behavior of the codling moth, Cydia pomonella (L.), was studied to determine factors responsible for differences in susceptibility to moth damage among apple and pear cultivars. In release experiments, codling moth adults were intercepted in significantly greater numbers in host (apple, pear) than in non-host (maple) trees,...

Resource Type:

Dissertation

Full Text:

Helen Calm, Dr.'s Hans Luh and Clifford Pereira helped out whenever I had questions about experimental