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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Seasonality of codling moth, Cydia pomonella L. (Lepidoptera: Olethreutidae) in the Willamette Valley of Oregon : role of photoperiod and temperature /

Setyobudi, Lilik. January 1989 (has links)
Thesis (Ph. D.)--Oregon State University, 1990. / Typescript (photocopy). Includes bibliographies. Also available on the World Wide Web.
2

The pine tussock moth laboratory biology and larval coloration /

Brumpton, Ralph Greg, January 1966 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1966. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
3

Gypsy moth population predictions for Wisconsin

Biging, Gregory Scott. January 1978 (has links)
Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 135-145).
4

The relationship between the host plant and the dispersal of larval gypsy moths, Lymantria dispar (L.) (Lepidoptera: Lymantriidae).

Lance, David R. 01 January 1979 (has links) (PDF)
No description available.
5

Is the gypsy moth winning? intervention and defoliation in West Virginia during 1986-1996 /

Fleming, Monica Ann Vint. January 1999 (has links)
Thesis (M.A.)--West Virginia University, 1999. / Title from document title page. Document formatted into pages; contains viii, 38 p. : ill., maps (some col.) Vita. Includes abstract. Includes bibliographical references (p. 18-19).
6

Studies on parasitoids of the diamondback moth, Plutella xylostella (L.) (Lepidoptera:Plutellidae), in South Africa

Nofemela, Sicelo Robert. January 2004 (has links)
Thesis (M.S.)--Rhodes University, 2004. / Title from PDF t.p. (viewed on Apr. 30, 2006). Includes bibliographical references (p. 81-92).
7

Integration of microbial and chemical controls against codling moth, Cydia pomonella (L.) : laboratory and field evaluation

Bajwa, Waheed Ibrahim 22 March 1996 (has links)
The feasibility of managing codling moth, Cydia pomonella (L.), with mixtures of Bacillus thuringiensis-based microbial and selected chemical insecticides was studied under laboratory and field conditions. Joint actions (synergism, additivity and antagonism) of these mixtures were determined for both egg and larval stages. Higher rates of microbial control agents (MCAs), Dipel�� 2X and MVP��, combined with low to medium rates of chemical insecticides gave additive or synergistic egg and/or larval mortality. Esfenvalerate and permethrin synergised the effect of these MCAs, whereas carbaryl, azinphosmethyl, phosmet and diflubenzuron had an additive effects. For all chemical insecticides, often the interactions were better with Dipel than MVP. Generally, egg exposure to low rates of the chemical insecticides alone or in combination with MCAs, caused the larvae hatching from these eggs to be more susceptible to insecticides-MCA mixtures. Most mixtures produced better results when treated at the blackhead stage of egg development. Adult and larval exposure to sublethal rates of azinphosmethyl, phosmet, carbaryl, esfenvalerate and permethrin manifested short- and long-term effects. Adult exposure caused deleterious effects on the survival and oviposition, and the larval exposures affected survival and pupal formation. Carbaryl, esfenvalerate and permethrin affected the pupal survival and subsequent eclosion of adults. Only esfenvalerate and permethrin significantly extended the larval period and reduced pupal weight and subsequent egg deposition. The deleterious sublethal effects of pyrethroids observed in the present study may provide added control of codling moth in the field. Diflubenzuron and MCAs had neither adulticidal activity nor long-term effects on codling moth biology. Results of field efficacy tests indicate that utilization of mixtures of Dipel with low rates of pyrethroids (0.1-0.2X) or diflubenzuron (0.25-0.50X) in the codling moth management is possible and indeed might be beneficial. Dipel-diflubenzuron mixtures were only suitable when applied 3 times/generation. These mixtures were environmentally safe and did not cause any outbreak of phytophagous mites. Standard application rate (2 times/generation) and timing were found to be appropriate for Dipel-pyrethroid (esfenvalerate and permethrin) mixtures. These pyrethroids at all test rates (0.1-1.0X), applied alone or mixed with MCAs, were toxic to predatory phytoseiids, thus caused an outbreak of European red mite and yellow spider mites particularly at higher rates. However, mixtures of Dipel and 0.1X of esfenvalerate/permethrin were less disruptive than corresponding 0.2-1.0X standard rate. These mixtures were selective to most predatory insects, spiders and Zetzellia malt. Hence, use of these mixtures instead of full rate of pyrethroids may improve the prospects of biological control of insect and mite pests in apple orchards. / Graduation date: 1996
8

Seasonal occurrence and abundance of diamondback moth, Plutella xylostella (L.), and its major parasitoids on brassicaceous plants in South Australia /

Hatami, Bijan. January 1996 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Crop Protection, 1996. / Includes bibliographical references (leaves 121-151).
9

The sublethal effects of ecdysone agonists on the attractiveness, responsiveness, fertility and fecundity of oriental fruit moth, a comparative examination with codling moth on larval feeding damage

Reinke, Michael. January 2006 (has links)
Thesis (M.S.) University of Missouri-Columbia, 2006. / 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 (June 26, 2007) Includes bibliographical references.
10

The control of Oriental fruit moth and codling moth with ovicides.

Couper, Henry Vincent 01 January 1941 (has links) (PDF)
No description available.

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