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Filtering by: Subject Pear -- Diseases and pests -- Oregon Advisor Cameron, H. Ronald Degree Level Doctoral

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
Brown rot of sweet cherry in western Oregon

Creator:

Gashaira, Bashir

Resource Type:

Dissertation

Full Text:

materially reduces the yield by causing blossom blight and fruit rot of stone fruit trees in western Oregon