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Isolation, purification and other studies of viruses mechanically transmitted from pear

Creator:: Nemec, Stanley, Jr.
Abstract:: Knowledge of the viruses which are mechanically transmitted from pear to herbaceous plants and the diseases they cause in pear is not complete. This thesis discusses the means used to mechanically transmit pear viruses, the properties of those viruses and their relationships with latent viruses of apple. Herbaceous plant virus...
Resource Type:: Dissertation
Full Text:: , PURIFICATION AND OTHER STUDIES OF VIRUSES MECHANICALLY TRANSMITTED FROM PEAR Abstract approved Redacted for

Mineral nutrition, pyruvate kinase activity, and protein concentration in 'd'Anjou' pear fruit affected by cork spot

Creator:: Bevacqua, Robert Francis
Resource Type:: Dissertation
Full Text:: Nutrition, Pyruvate Kinase Activity, and Protein Ooncentraticri in 'd'Anjou' Pear Fruit Affected by Pork

The relationship of phloem graft union responses to pear decline

Creator:: Ostrowski, Richard Carl
Abstract:: Since 1948, pear decline has been responsible for the devitalization and death of many pear trees in the Pacific Coast states and British Columbia. Use of anatomical abnormalities of the graft union as a diagnostic technique to separate pear decline from other disorders exhibiting similar symptoms was evaluated. Modifications in...
Resource Type:: Dissertation

Arthropod community organization and development in pear

Creator:: Gut, Larry J.
Abstract:: Arthropod communities in pear are conceptualized as hierarchically organized systems in which several levels of organization or subsystems can be recognized between the species population level and the community as a whole. An individual tree is taken to be the community habitat with arthropod subcommunities developing on leaf, fruit and...
Resource Type:: Dissertation
Full Text:: Arthropod Community Organization and Development in Pear

Epidemiology of disease caused by Pseudomonas syringae as an epiphyte and its frequency, distribution, and characteristics as an endophyte of pear

Creator:: Whitesides, Steven K.
Abstract:: Conditions were established for inducing pear blossom blast caused by Pseudomonas syringae (Ps) on both attached and detached shoots. The incidence of disease was proportional to the log of Ps population under optimal temperature, moisture and bloom developmental stage. Highest incidence of infection followed occurrence of a major exotherm in...
Resource Type:: Dissertation
Full Text:: . Ps is a bacterium that causes a disease of pear and many other hosts. It can be isolated readily

Histological study of pear bark in relation to blight resistance

Creator:: McCormick, Andrew Cameron
Resource Type:: Masters Thesis
Full Text:: attention in this connection, and not only has the disease in question been studied, but its relation to

The disease cycle of side rot of pear, caused by Phialophora malorum

Creator:: Sugar, David
Abstract:: Potential sources of inoculum of Phialophora malorum were investigated. P. malorum was found to be a soil-borne fungus whose role as a postharvest pathogen of pear is dependent upon passive dispersal with infested soil. P. malorum survived in soil under a wide range of conditions, with greatest survival in cool,...
Resource Type:: Dissertation
Full Text:: Botany and Plant Pathology presented on December 1, 1989. Title: The Disease Cycle of Side Rot of Pear

Relative efficacy of natural enemies of pear psylla

Creator:: Higbee, Bradley S.
Resource Type:: Conference Proceeding
Full Text:: Efficacy of Natural Enemies of Pear Psylla Field releases of Anthocoris melanocerus and Anthocoris

Pesticide bioassays on pear psylla predators [1993]

Creator:: Higbee, Bradley S.
Resource Type:: Conference Proceeding
Full Text:: Bioassays on Pear Psylla Predators Mortality of the predators Deraeocoris brevis and Anthocoris melanocerus

Biology : pear psylla - pears [1993]

Creator:: Horton, David R.
Resource Type:: Conference Proceeding
Full Text:: understood. Fall dispersal by pear psylla is an important but incompletely understood phenomenon, and it was

ScholarsArchive@OSU

Isolation, purification and other studies of viruses mechanically transmitted from pear

Mineral nutrition, pyruvate kinase activity, and protein concentration in 'd'Anjou' pear fruit affected by cork spot

The relationship of phloem graft union responses to pear decline

Arthropod community organization and development in pear

Epidemiology of disease caused by Pseudomonas syringae as an epiphyte and its frequency, distribution, and characteristics as an endophyte of pear

Histological study of pear bark in relation to blight resistance

The disease cycle of side rot of pear, caused by Phialophora malorum

Relative efficacy of natural enemies of pear psylla

Pesticide bioassays on pear psylla predators [1993]

Biology : pear psylla - pears [1993]

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