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History and distribution of bee diseases in Oregon

Creator:: Black, A. Burr
Abstract:: This thesis is a discussion of the major bee diseases found in Oregon with notes on minor ailments of bees and on diseases not yet present followed by a history of the introduction and spread of the more important diseases, a history of bee legislation in Oregon and a discussion...
Resource Type:: Masters Thesis
Full Text:: to the colonies contracting it, no race of bees is resistant to it, it is spread largely by

The commercial propogation and biological studies of two parasites of the codling moth

Creator:: Gillespie, Douglas Grayson
Resource Type:: Masters Thesis
Full Text:: . Laboratory !Ireding and xTopogation Records 51. Table No. I 53. arusite Shipments Received from Outside

Life history and control of the grape leaf folder in the San Joaquin Valley, California

Creator:: Kaloostian, George Hagop
Resource Type:: Masters Thesis
Full Text:: usual way for the variety. Perhaps a report of the leaf rolling habit of this insect led Riley to make

Life history and morphology of Cremona cotoneastri Busck

Creator:: Rosenstiel, Robert G. (Robert George), 1910-1985
Resource Type:: Masters Thesis
Full Text:: cotoneaster vebworm Will change its hosts id become of considerable economic importance. No natural

Laboratory studies on the effectiveness of insecticidal materials against Diabrotica soror Leconte

Creator:: Ferguson, George Ray
Resource Type:: Masters Thesis
Full Text:: be an even coating of dust on both sides of the leaves was the criterion used. No attempt was

The hop aphis, Phorodon humuli (Schrank) and its control in the Willamette Valley

Creator:: Larson, Noal P.
Resource Type:: Masters Thesis
Full Text:: INDEX TO ILLUSTRATIONS Plate No. Page 1. Seasonal History oÍ' the Hop Aphis - ... 52 2. The Hop

Investigation on the life history and habits of the cherry case bearer (Coleophora pruniella Clemens) and the cigar case bearer (C. fletcherella Fernald) in the Willamette Valley

Creator:: Hsiao, Tsai Yu
Resource Type:: Masters Thesis
Full Text:: "Tln.eina of North In 1890, A. S. Packard (22) in the fifth Report of the United States Entomological

A general study of the mint flea-beetle, Longitarus waterhousei Kutsch

Creator:: Leung, Yuk Maan
Resource Type:: Masters Thesis
Full Text:: been heavily invaded by mint flea-beetles. There was no adequate report to record when 29 and

Some observations on the life-history and bionomics of the holly scale, Aspidiotus britannicus Newst. in Oregon

Creator:: Roaf, James Richardson
Resource Type:: Masters Thesis
Full Text:: English holly, hex aqui- folium Liim. in Oregon. As practically no information has been pub-. lished

Tingids of economic importance in Oregon with special reference to the western willow Tingid, Corthucha salicata Gibson

Creator:: Wong, Kwan Lun
Resource Type:: Masters Thesis
Full Text:: placed siigly and in no definite order. Occaslenally two eggs are inserted in the same egg puncture

ScholarsArchive@OSU

History and distribution of bee diseases in Oregon

The commercial propogation and biological studies of two parasites of the codling moth

Life history and control of the grape leaf folder in the San Joaquin Valley, California

Life history and morphology of Cremona cotoneastri Busck

Laboratory studies on the effectiveness of insecticidal materials against Diabrotica soror Leconte

The hop aphis, Phorodon humuli (Schrank) and its control in the Willamette Valley

Investigation on the life history and habits of the cherry case bearer (Coleophora pruniella Clemens) and the cigar case bearer (C. fletcherella Fernald) in the Willamette Valley

A general study of the mint flea-beetle, Longitarus waterhousei Kutsch

Some observations on the life-history and bionomics of the holly scale, Aspidiotus britannicus Newst. in Oregon

Tingids of economic importance in Oregon with special reference to the western willow Tingid, Corthucha salicata Gibson

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