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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:: . . Krantz The tracheal mite, Acarapis woodi (Rennie), parasitizes the honey bee, Apis mellifera L., an

The soil persistence and crop selectivity of 3, 6-dichloropicolinic acid

Creator:: Olson, David Lloyd
Abstract:: Field studies were conducted in 1973 and 1974 to determine the soil persistence of the herbicide M-3785 (containing 0.5 lb a.e. Dowco 290 + 2.0 lb a.e. 214D/gallon). under cropping situations. Spring barley (Hordeum distichon L. 'Hannchen') was grown at Corvallis, Oregon and winter wheat (Triticum aestivum L. 'Nugaines.') was...
Resource Type:: Masters Thesis
Full Text:: lb a.e. 214D/gallon). under cropping situations. Spring barley (Hordeum distichon L. 'Hannchen') was

The herbicide HOE 23408; soil persistence, spring wheat cultivar tolerance, and interaction with broadleaf herbicides

Creator:: Ivackovich, Branislav D.
Abstract:: HOE 23408 [ 4-(2' , 4'-dichlorophenoxy)-phenoxy-u-propionic methylester.1 is a promising new compound for control of wild oats and other grass weeds in small grains. Several factors influencing its use for this purpose were investigated. Greenhouse bioassay studies were conducted in 1975 to determine relative persistence of HOE 23408 in four...
Resource Type:: Masters Thesis
Full Text:: . I am grateful to Dr. Kenton L. Chambers and Dr. William 0. Lee for serving on my committee and

The effect of residue removal and burning on the growth of Festuca longifolia Thuill. and Festuca rubra L. subsp. commutata Gaud. established for seed production

Creator:: Vollmer, Gregory S.
Abstract:: Hard Fescue (Festuca longifolia Thuill.) has potential for in creased turf use but does not respond well to normal seed production management practices in Oregon. Field burning (the normal residue management practice) results in reduced seed yields in commercial hard fescue seed production fields but stimulates seed production in Chewings...
Resource Type:: Masters Thesis
Full Text:: Festuca longifolia Thuill. and Festuca rubra L. subsp. commutata Gaud. established for seed production

Spring establishment of orchardgrass and tall fescue seed crops with cereal companion crops

Creator:: Chastain, Thomas G.
Abstract:: Orchardgrass and tall fescue seed crops are commonly springplanted in Oregon, but do not produce a marketable crop during the first growing season. Establishing orchardgrass and tall fescue with cereal companion crops would provide income during the seeding year and could increase seed production profits. This study was conducted to...
Resource Type:: Dissertation
Full Text:: Crops INTRODUCTION The production of high quality orchardgrass (Dactylis glomerata L.) and tall

Response of Cuscuta campestris and Cuscuta indecora to glyphosate applied after attachment to alfalfa (Medicago sativa)

Creator:: Fessehaie, Rezene
Abstract:: The response to glyphosate [N-(phosphonomethyl) glycine] of two dodder species Cuscuta campestris Yuncker (field dodder) and Cuscuta indecora Chiosy (largeseed dodder) parasitizing alfalfa (Medicago sativa L.) was compared. In the absence of glyphosate, alfalfa was killed or severely injured by parasitism from uncontrolled dodder. Results of field experiments in which...
Resource Type:: Masters Thesis
Full Text:: the field work. Dr. Anita Miller, Dr. Kenton L. Chambers, and Mr. Myron Shenk for their dedication

Plant and seed development in four Cuphea species

Creator:: Kaliangile, Imanga
Resource Type:: Masters Thesis
Full Text:: this thesis. I thank Dr. Kenton L. Chambers, Dr. Steve Knapp and Dr. Harry J. Mack, my Graduate

Physiological characteristics of different forage yielding tall fescue (Festuca arundinacea Schreb.) selections under field sward conditions

Creator:: Lhamby, Julio Cesar
Resource Type:: Masters Thesis
Full Text:: , 'for their affection and love, I dedicate this thesis. J. C. L. ACKNOWLEDGMENTS It is a pleasure

Persistence and accumulation of clopyralid (3,6-dichloropicolinic acid) in soil

Creator:: Tanphiphat, Karin
Abstract:: Field studies were started at Hyslop Farm, Corvallis, Oregon in 1984 to determine the soil persistence of the herbicide clopyralid (3,6-dichloropicolinic acid) under cropping situations. The herbicide was sprayed on bare soil at the proposed use rate of 0.14 kg/ha in the spring and on the same plots at a...
Resource Type:: Masters Thesis
Full Text:: /ha in the summer. Winter wheat (Triticum aestivum L. 'Stephen') was seeded in the same fall

Ovule characteristics of two tall fescue (Festuca arundinacea Schreb.) genotypes and their sterile hybrid

Creator:: Beuselinck, Paul Richard
Resource Type:: Dissertation
Full Text:: expressed to Drs. D. I. Mills, K. L. Chambers, C. J. Weiser, and D. 0. Chilcote for their interest as

ScholarsArchive@OSU

Tracheal mite parasitism of honey bees

The soil persistence and crop selectivity of 3, 6-dichloropicolinic acid

The herbicide HOE 23408; soil persistence, spring wheat cultivar tolerance, and interaction with broadleaf herbicides

The effect of residue removal and burning on the growth of Festuca longifolia Thuill. and Festuca rubra L. subsp. commutata Gaud. established for seed production

Spring establishment of orchardgrass and tall fescue seed crops with cereal companion crops

Response of Cuscuta campestris and Cuscuta indecora to glyphosate applied after attachment to alfalfa (Medicago sativa)

Plant and seed development in four Cuphea species

Physiological characteristics of different forage yielding tall fescue (Festuca arundinacea Schreb.) selections under field sward conditions

Persistence and accumulation of clopyralid (3,6-dichloropicolinic acid) in soil

Ovule characteristics of two tall fescue (Festuca arundinacea Schreb.) genotypes and their sterile hybrid

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