Thesis (Ph.D.)--University of Nebraska-Lincoln, 2008. / Title from title screen (site viewed Jan. 13, 2009). PDF text: vii, 132 p. : ill. (some col.) ; 4.76 Mb. UMI publication number: AAT 3315331. Includes bibliographical references. Also available in microfilm and microfiche formats.

Thesis (M.S.)--University of Wisconsin--Madison. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 51-60).

Thesis (Ph. D.)--University of Wisconsin, 1965. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliography.

Thesis (M.S.)--University of Missouri-Columbia, 2007. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on October 31, 2007). Includes bibliographical references.

Title from PDF of title page (University of Missouri--Columbia, viewed on Feb. 24, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dissertation advisor: Dr. Georgia Davis. Vita Includes bibliographical references.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 86-87). Also available via the Internet.

No description available.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1975. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 80-84).

Studies of the life history and habits of Diabrotica longicornis (Say), a new pest of corn in Quebec, were undertaken in the field and in the laboratory. Seasonal activity and habits were established by monitoring life stages in the field during the years 1979, 1980 and 1981. The threshold temperature for development of NCR eggs was estimated at 9.7(DEGREES)C. The mean thermal constant for first hatching in the laboratory was 326 degree days above 9.7(DEGREES)C. Eclosion occurred in the field when average soil temperature conditions at the 5 - 10 cm depth reached 331 - 334 degree days. / Pupation occurred in the soil from late June to early July. Adults emerged from mid-July to August, and oviposition occurred during the same period. Oviposition preferences of NCR beetles were studied in relation to local soil types, soil moisture, and soil surface conditions, both in the laboratory and in the field under free choice conditions. In both cases, a clear preference was shown for moist, cracked, clay soil. / The behaviour of adults held under controlled environmental conditions (12L:12D diel light cycle, 23 (+OR-) 2(DEGREES)C temperature, 60 - 80 per cent RH) was investigated, and emergence, locomotor activity and sexual behaviour were recorded. The duration of larval stages reared in the laboratory on natural diets were compared with those for field-collected larvae. Natural enemies and mortality factors for the species were investigated in the field. A simple method for rearing NCR in the laboratory was developed.

No description available.