AuthorsJ. E. Devay
F. L. Lukezic
C. J. Hansen
Authors AffiliationsJ. E. DeVay is Associate Professor of Plant Pathology, University of California, Davis; F. L. Lukezic is Laboratory Technician, Plant Pathology Department, U.C., Davis; Harley English is Professor of Plant Pathology, U.C., Davis; K. Uriu is Assistant Pomologist, U.C., Davis; C. J. Hansen is Professor of Pomology, U.C., Davis.
Hilgardia 16(1):2-3. DOI:10.3733/ca.v016n01p2. January 1962.
New fungus disease of prunes and apricots in California attributed to bruise injuries to bark from some shakers or other machinery Bark bruises on prune and apricot frees—resulting from mechanical harvesting injuries, particularly with certain types of limb or trunk shakers—are allowing the infection and spread of the serious canker disease caused by the fungus, Ceratocystis fimbriata. This injured branch of French prune had begun to heal until infected by the fungus which has now spread into healthy tissues above and below wound (arrows). Such branches are usually girdled and killed in two to three years.
Also in this issue:Biases encountered in large-scale yield tests
Minimizing bark injury with mechanical shakers
Properties of coated fertilizer materials
Wheat yields reduced in 1961 by: Stripe rust epidemic in central California
Black-eyed peas: As a swine feed
Nitrogen and crop level effects on: Canned freestone peach quality
Insecticide application and coverage: Drop nozzles and higher gallonage applications improve aphid control on lettuce
Ethylene and ripening in melons
Inheritance in tomato hybrids
Precision tillage: For cotton production
Potato response to phosphorus: In organic soils at Tulelake
Light quality for plant growth: Excellent in new phytotron
European alfalfa and red clover
Electron microscopy aids physiological studies
Crop, soil response to water application