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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.
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Showing 1 to 10 of 24 (0.071 seconds)Spelling suggestions: "subject:"beneficial insect""
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A new nematode parasite of mole crickets its taxonomy, biology and potential for biological control /Nguyen, Khuong Ba, January 1988 (has links)
Thesis (Ph. D.)--University of Florida, 1988. / Description based on print version record. Typescript. Vita. Includes bibliographical references (leaves 149-153).
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| 2 |
Studies on elemental sulfur as a soil insecticideBulger, Jacob Work, January 1928 (has links)
Thesis (Ph. D.)--Ohio state University, 1924. / Autobiography. "Reprinted from the Ohio journal of science, vol. XXVIII, no. 1, January, 1928." Bibliography: p. 38.
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| 3 |
Blueberry and huckleberry insects ...Phipps, Clarence Ritchie, January 1900 (has links)
Thesis (Ph. D.)--Cornell University, 1930. / Cover title. Published also as Bulletin 356 of the Maine Agricultural experiment station. "Literature cited": p. 219-221.
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| 4 |
Environmental effects of insecticides on non target predator and parasitoid insectsEchegaray, Francisco 27 November 2009 (has links)
When considering how insecticides impact beneficial insects, in addition to direct
mortality, we need to assess sublethal effects on population numbers which reduce the efficacy
of the predators and parasitoids in reducing pest insects. The physiological sublethal effects can
result in reduced longevity and reproduction.
Understanding the sublethal effects of insecticides on beneficial insects is important in
agroecosystems, especially in the context of natural biological control which aims to augment
endemic natural enemies.
The objective of this research study was to evaluate the environmental effects of
insecticides on non target predator and parasitoid insects, combining the review of the literature
and the synthesis of both a laboratory and a field research study. The lab study considered the
effects of chlorpyrifos and deltamethrin on three natural enemies of Russian wheat aphid; the
field study considered the effects of chlorpyrifos, deltamethrin, cyhalothrin-lambda and
imidacloprid on ground dwelling arthropods in a Canola field.
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| 5 |
Studies of the biology and effectiveness of Laricobius erichsonii Rosenh. (Coleoptera: Derodontidae), an European predator of the balsam woolly aphid, Adelges piceae (Ratz.) (Homoptera: Adelgidae) /Buffam, Paul Edwin. January 1960 (has links)
Thesis (M.S.)--Oregon State College, 1960. / Typescript. Includes bibliographical references (leaves 67-69). Also available on the World Wide Web.
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| 6 |
Studies on elemental sulfur as a soil insecticideBulger, Jacob Work, January 1928 (has links)
Thesis (Ph. D.)--Ohio state University, 1924. / Autobiography. "Reprinted from the Ohio journal of science, vol. XXVIII, no. 1, January, 1928." Bibliography: p. 38.
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The biology of the loosestrife borer, Papaipema lysimachiae Bird (Lepidoptera: Noctuidae)Anderson, Robert Jerome, January 1967 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1967. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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| 8 |
The effect of temperature and moisture on the development of Fannia canicularis (L.) and Fannia femoralis (Stein), (Diptera : Muscidae) /Deal, Andrew Stuart January 1967 (has links)
No description available.
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| 9 |
Studies of wood boring insects as vectors of the oak wilt fungus.Donley, David E. January 1959 (has links)
No description available.
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| 10 |
Biting diptera of medical importance in KansasYoung, William Wood. January 1958 (has links)
Call number: LD2668 .T4 1958 Y68
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