Index Catalog // ScholarsArchive@OSU

Interspecific competition among four species of grain beetles at three temperature and moisture levels

Creator:: O'Brien, Joseph Francis
Abstract:: This study was conducted to test the performance of four species of stored grain beetles in competition at three levels of moisture and temperature. The insects used in these tests were the granary weevil, the rice weevil, the saw-toothed grain beetle and the red flour beetle. The experiments were conducted...
Resource Type:: Masters Thesis
Full Text:: the experimental work and in the preparation of this thesis: Dr. Gerald W. Krantz, Assistant

The internal morphology of Caminella peraphora Krantz and Ainscough, with descriptions of the immature stages (Acarina: Trachytidae)

Creator:: Ainscough, Brian Drew
Resource Type:: Masters Thesis
Full Text:: various times during, the preparation of this thesis: To Dr. G. W. Krantz, Assistant Professor of

Biological, developmental, and behavioral studies of Leiodinychus krameri (Can.) (Acarina : Uropodidae)

Creator:: Radinovsky, Sydney
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGMENT S The writer wishes to express his appreciation to his major professor, Dr. G. W. Krantz

A study of relationships of four insects to heating in stored grain

Creator:: Eighme, Lloyd Elwyn
Abstract:: This study was conducted to determine the effects of insect infestation on areas of heating in stored grain, and to demonstrate the ability of four species of insects to initiate or promote the spread of these heating areas. The four insects used were the granary weevil Sitophilus granarius (L.), the...
Resource Type:: Dissertation
Full Text:: wishes to express special appreciation to his major professor, Dr. G. W. Krantz, Associate Professor of

A review of the genus Neotrombidium leonardi, 1902, with a description of two new species, and a critical re-evaluation of the family concepts within the Trombidioidea (Acarina)

Creator:: Singer, George
Abstract:: The systematics and biology of the genus Neotrombidium Leonardi are reviewed and discussed. A generic description is presented for larvae and post-larvae of Neotrombidium, together with descriptions of two new species, N. cleronyssus and N. tenebrionyssus. The biology and life history of N. tenebrionyssus are described, with notes on rearing...
Resource Type:: Dissertation
Full Text:: Dr. G. W. Krantz and Dr. P. O. Ritcher, Department of Entomology, Oregon State University

A review of the family Eviphididae (Acarina: Mesostigmata)

Creator:: Shoemake, Rodger Russell
Abstract:: A complete taxonomic review of the Family Eviphididae was made for the first time. The family was found to contain forty-nine species and five genera. The genera included were: Eviphis Berlese, Scarabaspis Womersley, Alliphis Halbert, Pelethiphis Berlese, and Thinoseius Halbert. The new species described were: Eviphis oregonensis from Deschutes County,...
Resource Type:: Dissertation
Full Text:: (ACARINA: MESOSTIGMATA) Abstract approved: _Redacted for Privacy G. W. Krantz A complete taxonomic review

Biology and behavior of the mite Cheletomorpha lepidopterorum (Shaw) (Prostigmata:Cheyletidae) and its role as a predator of a grain mite Acarus farris (Oud.) (Astigmata:Acaridae)

Creator:: Allison, James Roger, 1937-
Abstract:: Cheletomorpha lepidopterorum (Shaw), a predaceous, prostigmatid mite, was studied under laboratory conditions of 20° - 30° C and 80% - 90% R. H. to determine its effectiveness as a possible biological control agent of Acarus farris (Oud. ), a graminivorous mite which infests stored grains and grain products. Although Cheletophyes...
Resource Type:: Dissertation
Full Text:: work: (1) Dr. G. W. Krantz, my major professor, who suggested the problem and provided guidance

A quantitative survey of the fleas associated with the gray-tailed vole, Microtus canicaudus Miller

Creator:: Robbins, Richard George
Abstract:: A study of the population dynamics and ecology of the fleas associated with the gray-tailed vole, Microtus canicaudus Miller, was conducted on three sites surrounding the city of Corvallis, Oregon. Over a period of 12 months, 22,641 adult and larval fleas representing three families and eight species were recovered from...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy G. W. Krantz A study of the population dynamics and ecology of the fleas associated

Observations on the morphology and biology of Rhizoglyphus robini Claparede (Acari, Acaridae)

Creator:: Baker, Gerald Timothy
Resource Type:: Dissertation
Full Text:: : r -Dr. ,G. W. Krantz The cuticle of Rhizoglyphus robini Claparede is about 1.6p M thick in the

Tracheal mite parasitism of honey bees

Creator:: Royce, Lynn A.
Abstract:: The tracheal mite, Acarapis woodi (Rennie), parasitizes the honey bee, Apis mellifera L., an insect used extensively by humans for pollination of domestic crops and for bee products, primarily honey. This parasite was first discovered in 1921 on the Isle of Wight, a small island situated in the English Channel...
Resource Type:: Dissertation
Full Text:: would like to thank my major professor, Dr. G. W. Krantz for his guidance and support during the course

ScholarsArchive@OSU

Interspecific competition among four species of grain beetles at three temperature and moisture levels

The internal morphology of Caminella peraphora Krantz and Ainscough, with descriptions of the immature stages (Acarina: Trachytidae)

Biological, developmental, and behavioral studies of Leiodinychus krameri (Can.) (Acarina : Uropodidae)

A study of relationships of four insects to heating in stored grain

A review of the genus Neotrombidium leonardi, 1902, with a description of two new species, and a critical re-evaluation of the family concepts within the Trombidioidea (Acarina)

A review of the family Eviphididae (Acarina: Mesostigmata)

Biology and behavior of the mite Cheletomorpha lepidopterorum (Shaw) (Prostigmata:Cheyletidae) and its role as a predator of a grain mite Acarus farris (Oud.) (Astigmata:Acaridae)

A quantitative survey of the fleas associated with the gray-tailed vole, Microtus canicaudus Miller

Observations on the morphology and biology of Rhizoglyphus robini Claparede (Acari, Acaridae)

Tracheal mite parasitism of honey bees

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