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Annual bluegrass (Poa annua L.) control with ethofumesate during turfgrass establishment

Creator:: Wieneche, David L.
Abstract:: Temperate climates are particularly conducive to growth of annual bluegrass which readily invades and dominates most cool-season turfgrasses. Ethofumesate (2-ethoxy-2,3-dihydro-3,3-dimethyl-5-benzofuranyl methanesulfonate) is one herbicide available which will selectively control annual bluegrass. The primary objectives of this research were to determine optimum application rates and timing of ethofumesate for control of...
Resource Type:: Masters Thesis
Full Text:: for serving on my graduate committee. Appreciation is due to Dr. Daniel L. Hodges and Dr. Richard

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:: is 40 times more effective than a droplet placed at the tip of the first leaf. An increase of spray

Interaction between glyphosate and certain s-triazine herbicides

Creator:: Somabhi, Montien
Abstract:: Investigations were made in the field, greenhouse, growth chamber, and laboratory to: (a) observe the general activity of N- (phosphonomethyl)glycine (glyphosate); (b) determine the extent of its interaction with certain s-triazine herbicides; and (c) find an explanation for such an interaction. Greenhouse and growth chamber studies substantiated other observations that...
Resource Type:: Dissertation
Full Text:: centrifuging. Significantly more glyphosate was adsorbed by the suspended materials when the spray mixtures

How Oregon farmers select and use herbicides on wheat

Creator:: Fine, Richard Ray, 1939-
Abstract:: Questionnaires were used in a survey of Oregon farmers to determine how they select and use herbicides on wheat. Farmer's decisions were evaluated on the basis of their ability to: select the proper herbicide treatment for their weed problem and to make application at the proper time. Questionnaire scores indicated...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS FOR RICHARD RAY FINE for the DOCTOR OF PHILOSOPHY (Name) for FARM CROPS

Effect of two methylcarbamates on the toxiciity of isopropyl m-chlorocarbanilate (chlorpropham) to safflower (Carthamus tinctorius L.) and common buckwheat (Fagopyrum esculentum Moench.)

Creator:: Kirkland, Kenneth
Abstract:: Addition of the methylcarbamate compounds p-chlorophenyl N-methylcarbamate (PPG-124) and 1-naphthyl N-methylcarbamate (carbaryl) to various herbicides has resulted in reduced rates of degradation. Carbaryl affects the degradation of certain herbicides in both plants and soils while PPG-124 has only been demonstrated to affect degradation in soils. Both these materials are effective...
Resource Type:: Masters Thesis
Full Text:: . To Dr. Richard D. Ilnicki for his many helpful suggestions concerning the preparation of this

Herbicidal effectiveness of trifluralin as influenced by methods of incorporation into the soil and depth of weed seed germination

Creator:: Gargano, Don Richard
Abstract:: This study was conducted to compare the effectiveness of four methods of incorporating the herbicide trifluralin into the soil, and to determine the interaction between depth of incorporation of trifluralin and depth of weed seed germination. Field experiments on green and dry peas were established in Oregon and Idaho. Trifluralin,...
Resource Type:: Masters Thesis
Full Text:: DON RICHARD GARGANO for the MASTER OF SCIENCE (Name) (Degree) (Major) ¿) (Date) in FARM CROPS

The effect of soil mixture and soil cover on residual activity of herbicides measured by seedling emergence of Poa annua, L

Creator:: Schwabauer, Richard Allen
Resource Type:: Masters Thesis
Full Text:: AN AtsSTRACT' OF THE T}IESIS OF Richard Allen Schwabauer

Some factors affecting the chemical control of Holcus lanatus in Agrostic tenuis Sibth

Creator:: Goetze, Norman R. (Norman Richard)
Resource Type:: Masters Thesis
Full Text:: 10 would expect no differences under heavy rainfall conditions betJJeen spray and pellet forms

The chemical control and the utilization of Anacharis densa

Creator:: Jordan, Gilbert Leroy
Resource Type:: Masters Thesis
Full Text:: continuous path through the cuticle and epidermal cell walls of apple leaves. Sugars added to spray

Mechanical, Biological and Chemical Strategies

Creator:: Peachey, Ed
Abstract:: Presented at the 62nd Annual North Willamette Horticulture Society Conference and Tradeshow.
Resource Type:: Presentation
Full Text:: Puller Precision spray systems Pictures courtesy of Richard Smith, UC Davis Pictures courtesy of

ScholarsArchive@OSU

Annual bluegrass (Poa annua L.) control with ethofumesate during turfgrass establishment

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

Interaction between glyphosate and certain s-triazine herbicides

How Oregon farmers select and use herbicides on wheat

Effect of two methylcarbamates on the toxiciity of isopropyl m-chlorocarbanilate (chlorpropham) to safflower (Carthamus tinctorius L.) and common buckwheat (Fagopyrum esculentum Moench.)

Herbicidal effectiveness of trifluralin as influenced by methods of incorporation into the soil and depth of weed seed germination

The effect of soil mixture and soil cover on residual activity of herbicides measured by seedling emergence of Poa annua, L

Some factors affecting the chemical control of Holcus lanatus in Agrostic tenuis Sibth

The chemical control and the utilization of Anacharis densa

Mechanical, Biological and Chemical Strategies

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