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The influence of antitranspirant and calcium sprays on calcium distribution and tipburn in cabbage (Brassica oleracea var. capitata) and lettuce (Lactuca sativa L.)

Creator:: Chen, Yung-Wu
Abstract:: Tipburn is a widespread physiological disorder of cabbage and lettuce, caused by calcium deficiency. Symptoms of tipburn are necrosis on margins of outer and inner head leaves in lettuce, whereas in cabbage it is only on margins of inner leaves. Tipburn on outer leaves may develop early, but symptoms remain...
Resource Type:: Masters Thesis
Full Text:: Antitranspirant and Calcium Sprays on Calcium Distribution and Tipburn in Cabbage (Brassica oleracea var

Phenology and monitoring of the cabbage maggot, Delia radicum (L.), in brassica root crops

Creator:: Dreves, Amy J.
Abstract:: In Oregon’s northern Willamette Valley, cabbage maggot (CM), Delia radicum (L.) (Diptera: Anthomyiidae) often renders Brassica root crops unmarketable. Scheduled insecticides are the only current control. Studies were conducted to: 1) describe and characterize spring emergence of CM flies and their seasonal flight activity relative to degree-day (DD) accumulations; 2)...
Resource Type:: Dissertation
Full Text:: , cauliflower, Brussel sprouts, kale, collards, and cabbage. It is a key pest of rutabaga and tuip production

The biology and control of the insect vectors of potato viruses in Oregon

Creator:: Crumb, S. E. (Samuel Ebb)
Resource Type:: Dissertation
Full Text:: project. He has grown the tuber samples from insecticide plots and determined the amount of disease

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

Physiologic specialization and etiology of red stele disease, Phytophthora fragariae Hickman, of strawberries, and attempts at control

Creator:: Wooley, Paul Henry
Resource Type:: Dissertation
Full Text:: Disease, Phytophthora Fragariae Hickman, of Strawberries, and Attempts at Control PHXSIOLOOIC

Rhizoctonia of the potato

Creator:: Corsaut, Jesse Harrison
Resource Type:: Masters Thesis
Full Text:: the disease on sugar beets in 1858 , and on carrots in 1854. Following the report of the disease

Studies of the crinkle disease of strawberry, with special reference to its transmission

Creator:: Vaughan, Edward Kemp
Resource Type:: Masters Thesis
Full Text:: . Geographic Distribution and Econoric Importance 5 III. Symptomz of Crinkle IV. Nature of the Disease

ScholarsArchive@OSU

The influence of antitranspirant and calcium sprays on calcium distribution and tipburn in cabbage (Brassica oleracea var. capitata) and lettuce (Lactuca sativa L.)

Phenology and monitoring of the cabbage maggot, Delia radicum (L.), in brassica root crops

The biology and control of the insect vectors of potato viruses in Oregon

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

Physiologic specialization and etiology of red stele disease, Phytophthora fragariae Hickman, of strawberries, and attempts at control

Rhizoctonia of the potato

Studies of the crinkle disease of strawberry, with special reference to its transmission

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