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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

Miscellaneous beneficial and pest insects : hazelnuts

Creator:: Drapek, Raymond and Fisher, Glenn C.
Resource Type:: Conference Proceeding
Full Text:: and pest insects Hazelnuts Raymond Drapek and Glenn Fisher Department or Entomology Oregon State

Classical biological control of the filbert aphid, Myzocallis coryli (Goetze) (Homoptera:Aphididae) in western Oregon

Creator:: Messing, Russell H.
Abstract:: A classical biological control project was undertaken against the filbert aphid, Myzocallis coryli (Goetze), in western Oregon. Hazelnut orchards in Spain, France, and Italy were searched for natural enemies of the aphid, and a parasitic wasp, Trioxys pallidus Haliday, was imported, quarantined, mass-reared, and released in Oregon orchards. The wasp...
Resource Type:: Dissertation
Full Text:: and Stebbins 1981). The filbert aphid, Myzocallis coryli (Goetze), is a perennial, serious pest in

Diseases of the filbert in the Pacific Northwest and their control

Creator:: Oregon State College. Agricultural Experiment Station and Miller, P. W. (Paul William), 1901-
Abstract:: Published July 1945. 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:: , the damage from blight is severe. Cause and nature of the disease This disease is caused by a

The biology and seasonality of the parasitiod Trioxys pallidus Haliday in western Oregon

Creator:: Cohn, Judy L.
Abstract:: Seasonal synchrony between the filbert aphid, Myzocallis coryli (Goetze) and its newly introduced parasitoid Trioxys pallidus Haliday was examined in the field to evaluate the effectiveness of parasitoid based biological control in filbert orchards of Oregon. Fieldemergence observations showed that 50% eclosion of the aphid occurred 14 days before that...
Resource Type:: Masters Thesis
Full Text:: filbert seedlings from Europe but did not become a pest until the 1920's (Smith and Parron, 1978

Toxicity of some commonly used pesticides to Trioxys Pallidus and its establishment in filbert orchards of Willamette Valley

Creator:: Saeed, Mohammad
Abstract:: A parasitic wasp, Trioxys pallidus Haliday (Hymenoptera: Aphidiidae) was imported from Europe and initially released against the filbert aphid Mvzocallis coryli (Goetze) in hazelnut (filbert) orchards of the Willamette Valley, Oregon beginning in 1984. In the present study, I investigated the establishment rates of this parasitoid. A total of 13...
Resource Type:: Masters Thesis
Full Text:: demand for nuts, higher profitability and the recent introduction of improved varieties. The pest

Biology of Meligethes seminulum lec. (Coleoptera: Nitidulidae)

Creator:: Dickason, E. A. (Elvis Arnie), 1919-
Resource Type:: Masters Thesis
Full Text:: - ported as an economic pest because it destroys the flowers of cruciferous and uinbelliferous plants

An investigation involving the sampling of morphological characters for use in estimating disease resistance and sample size in hops

Creator:: Hunt, Oliver Joseph
Resource Type:: Dissertation
Full Text:: characters for use in estimating disease resistance and sample size in hops AN INVESTIGATION INVOLVING THE

A study of the viruses infecting European and American potato varieties

Creator:: Dykstra, Theodore P. (Theodore Peter), 1896-1979
Resource Type:: Dissertation
Full Text:: emphasizes the necessity of distinguishinr between a virus and the type of disease it causes. That

Studies of yellow rust of Rubus

Creator:: Lund, Walter Thomas
Resource Type:: Masters Thesis
Full Text:: and Distribution of the Disease ............. i Purpose of the Investigation

ScholarsArchive@OSU

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

Miscellaneous beneficial and pest insects : hazelnuts

Classical biological control of the filbert aphid, Myzocallis coryli (Goetze) (Homoptera:Aphididae) in western Oregon

Diseases of the filbert in the Pacific Northwest and their control

The biology and seasonality of the parasitiod Trioxys pallidus Haliday in western Oregon

Toxicity of some commonly used pesticides to Trioxys Pallidus and its establishment in filbert orchards of Willamette Valley

Biology of Meligethes seminulum lec. (Coleoptera: Nitidulidae)

An investigation involving the sampling of morphological characters for use in estimating disease resistance and sample size in hops

A study of the viruses infecting European and American potato varieties

Studies of yellow rust of Rubus

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