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Biology of Meligethes seminulum lec. (Coleoptera: Nitidulidae)

Creator:: Dickason, E. A. (Elvis Arnie), 1919-
Resource Type:: Masters Thesis
Full Text:: work. The larvae were found in the blossoms of clover and haiiy vetch during June arid July. rfhe

Insect pests affecting clover in Oregon

Creator:: Anderson, Ernest Clifford
Resource Type:: Masters Thesis
Full Text:: been observed attacking alfalfa and sweet clover. Vassiliev lists this insect as a pest of lucerne in

Nodulation problems with alfalfa and subterranean clover on selected Oregon soils

Creator:: Attavirojana, Pitsanu
Abstract:: Two separate investigations were carried out. The first experiment on subterranean clover (Mr. Barker) was conducted in the field and greenhouse on the Steiwer soil. The second experiment on alfalfa (DuPuits) was conducted in the greenhouse on selected eastern Oregon soils. The purposes of the first experiment were to determine...
Resource Type:: Masters Thesis
Full Text:: Nodulation problems with alfalfa and subterranean clover

Isolation and Pathogenicity of Naturally Occurring Entomopathogenic Fungi to Clover Root Borer (Coleoptera: Curculionidae: Scolytinae), a Pest of Red Clover Seed Crops

Creator:: Lestari, Anis S.
Abstract:: Entomopathogenic fungi are cosmopolitan microbial pathogens that cause fungous diseases in a wide range of insects via spore infection. Due to their natural enemy status, they have tremendous potential for use as microbial control agents against insect pests, especially subterranean pests for which few management options are available. The clover...
Resource Type:: Masters Thesis
Full Text:: and/or microbial control agents for the clover root borer. In Chapter 2, I describe the field survey

The life history and habits of a new species of seed midge, Dasyneura Sp., which attacks Ladino clover

Creator:: Bishop, Guy William
Resource Type:: Masters Thesis
Full Text:: midge, Dasyneura Sp., which attacks Ladino clover THE LIFE HISTORY AND HABITS OF A NEW SPEC lES OF

Integrated small broomrape (Orobanche minor Sm.) management in red clover (Trifolium pratense L.)

Creator:: Ross, Kyle C.
Abstract:: Small broomrape, a holoparasitic weed, is a relatively new weed introduction in the Pacific Northwest that has contaminated a limited number of red clover fields in Oregon. Greenhouse and field studies were conducted to evaluate small broomrape response to common crop and weed species in the Pacific Northwest. Host species...
Resource Type:: Masters Thesis
Full Text:: clover seed production adds nutrients to the soil and provides an opportunity to control weeds in a

Seasonal abundance, distribution, and migration of the clover aphid, Nearctaphis bakeri (Cowen) in red clover

Creator:: Dreves, Amy J.
Abstract:: Four sampling techniques were evaluated to estimate clover aphid, Nearctaphis bakeri (Cowen), abundance in red clover fields in the Willamette Valley. The Berlese funnel method detected one to four times more aphids than other sampling techniques. Visual assessment often underestimated the high aphid densities during the flowering and seeding of...
Resource Type:: Masters Thesis
Full Text:: Northwest and can be a destructive pest at damaging levels on red clover (Smith 1919, Johansen 1960, Fisher

Lodging control and yield enhancement in Morex spring barley with paclobutrazol treatment

Creator:: Morrison, Laura A.
Abstract:: Lodging in cereals can cause significant decreases in yield. It is both a problem in susceptible cereal cultivars with a tall-stemmed, weak-strawed growing habit and in lodging-resistant cereal cultivars when they are grown under high-nitrogen, high-moisture regimes. Plant growth regulators (PGR's) are chemical growth retardants that offer a method of...
Resource Type:: Masters Thesis
Full Text:: , irrigation, and pest 17 control. Plant breeders have already been successful in developing semidwarf

Status, distribution and seasonal variation of filbert aphid resistance to selected insecticides in the Willamette Valley, Oregon

Creator:: Katundu, Juma
Abstract:: Levels of resistance to six selected insecticides of eleven field populations of the filbert aphid Mvzocallis coryli (Goetze) were determined by using the leaf-dip residue technique. Test insecticides included compounds widely used in commercial filbert orchards, namely, carbaryl, diazinon, endosulfan, phosalone, fenvalerate and oxydemetonmethyl. Aphid samples were collected within a...
Resource Type:: Masters Thesis
Full Text:: , Painter and Jones 1958). Due to the presence of the pest complex described above and the need to reduce

Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

Creator:: Cacka, Joseph Francis
Resource Type:: Masters Thesis
Full Text:: Biology 6 Control Strategies and Methods 7 Sampling 10 METHODS AND MATERIALS 12 Field Locations 12

ScholarsArchive@OSU

Biology of Meligethes seminulum lec. (Coleoptera: Nitidulidae)

Insect pests affecting clover in Oregon

Nodulation problems with alfalfa and subterranean clover on selected Oregon soils

Isolation and Pathogenicity of Naturally Occurring Entomopathogenic Fungi to Clover Root Borer (Coleoptera: Curculionidae: Scolytinae), a Pest of Red Clover Seed Crops

The life history and habits of a new species of seed midge, Dasyneura Sp., which attacks Ladino clover

Integrated small broomrape (Orobanche minor Sm.) management in red clover (Trifolium pratense L.)

Seasonal abundance, distribution, and migration of the clover aphid, Nearctaphis bakeri (Cowen) in red clover

Lodging control and yield enhancement in Morex spring barley with paclobutrazol treatment

Status, distribution and seasonal variation of filbert aphid resistance to selected insecticides in the Willamette Valley, Oregon

Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

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