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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:: untreated 1st and 2nd year red clover fields (A and C) and 2nd year clover field (B) in Corvallis, Oregon

Small broomrape : biology and management in the Pacific Northwest

Creator:: Oregon State University. Extension Service, Lins, Ryan D., and Colquhoun, Jed
Abstract:: Small broomrape (Orobanche minor Sm.) is a parasitic weed that recently has become troublesome in red clover seed production in Oregon. It was identified in a single red clover seed production field in 1998, and the number of infestations increased to 15 by 2000 and 22 by 2001.
Resource Type:: Technical Report
Full Text:: in Oregon. It was identifi ed in a single red clover seed produc- tion fi eld in 1998, and the

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:: borers and root zone soil samples from five red clover seed production fields in Western Oregon. Based

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:: limited number of red clover fields in Oregon. Greenhouse and field studies were conducted to evaluate

Biology and economic importance of seed chalcids infesting red clover and alfalfa in Oregon

Creator:: Carrillo S., Jose Luis
Abstract:: Published April 1963. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Economic Importance of Seed Chalcids Infesting Red Clover and Alfalfa in Oregon Agricultural Experiment

Insect pests affecting clover in Oregon

Creator:: Anderson, Ernest Clifford
Resource Type:: Masters Thesis
Full Text:: to grow good crops of clover, espe- cially red clover and alsike in some sections of Oregon 11

Biology of Meligethes seminulum lec. (Coleoptera: Nitidulidae)

Creator:: Dickason, E. A. (Elvis Arnie), 1919-
Resource Type:: Masters Thesis
Full Text:: : Clover is an important and profitable crop in Oregon and is grown quite extensively in the Willamette

Small broomrape (Orobanche minor) management using wheat (Triticum aestivum) as a false host

Creator:: Al-thahabi, Salam A.
Abstract:: Small broomrape (Orobanche minor) is an obligate, chlorophyll-lacking parasite that parasitizes red clover (Trifolium pratense) roots. This study was conducted to develop and implement an integrated, biologically based control program for small broomrape by using wheat as a false host to reduce the soil seed bank. The relationship between temperature...
Resource Type:: Dissertation
Full Text:: (Foy et al. 1989). In Oregon, small broomrape was reported in red clover fields in 1998. In 2000 and

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

Control of the clover seed weevil

Creator:: Oregon State College. Agricultural Experiment Station, Reeher, Max M. (Max Moore), b. 1892, Lockwood, L. P., and Mote, Don C. (Don Carlos), 1887-
Abstract:: Published May 1950. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: clover seed-growing areas of Washington, Oregon, and Idaho. In Oregon the weevil is now known to occur

ScholarsArchive@OSU

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

Small broomrape : biology and management in the Pacific Northwest

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

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

Biology and economic importance of seed chalcids infesting red clover and alfalfa in Oregon

Insect pests affecting clover in Oregon

Biology of Meligethes seminulum lec. (Coleoptera: Nitidulidae)

Small broomrape (Orobanche minor) management using wheat (Triticum aestivum) as a false host

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

Control of the clover seed weevil

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