California Agriculture, August 1958

Volume 12, Number 8
Effect of mite feeding on citrus measured

research articles

Mechanical sampler for almonds: Pneumatic device designed to select representative samples from bins without damage to nuts proves successful in tests
by Michael O'Brien
pp3-14, doi#10.3733/ca.v012n08p3
Abstract
Abstract Not Available – First paragraph follows: Basic design principles of pneumatic conveying were applied in the construction of a new device for sampling bulk in-shell almonds.
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Orchard heating effectiveness: Protection against radiation frosts by orchard heaters and by wind machines alone and in combination compared
by F. A. Brooks , H. B. Schultz
pp4-13, doi#10.3733/ca.v012n08p4
Abstract
The following article is the tenth annual report of progress in studies on orchard frost protection, based on report given at the 15th International Horticultural Congress in Nice, France, April 1958, now at Press.
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Wind protection for asparagus: Comparative tests of snow fences and interplanted barley for effectiveness in lifting windstreams of high velocity
by Herbert B. Schultz , Alan B. Carlton
pp6-13, doi#10.3733/ca.v012n08p6
Abstract
Abstract Not Available – First paragraph follows: Frequent strong winds over the Delta islands west of Stockton cause soil erosion and air pollution.
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Sugar beets in Imperial Valley: Effects of preharvest irrigation and nitrogen fertilization studied in relation to increasing sugar yield in hot climate
by R. S. Loomis , G. F. Worker , L. D. Doneen
pp7, doi#10.3733/ca.v012n08p7
Abstract
Abstract Not Available – First paragraph follows: Approximately 23% of the sugar beets in California—and 6% of those in the United States—are produced in the Imperial Valley.
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Boron requirements of prunes: Diagnostic and treatment experiments in Sonoma County show promise in control of brushy branch disease of prune trees
by C. J. Hansen , E. L. Proebsting , Enoch Torpen
pp8-13, doi#10.3733/ca.v012n08p8
Abstract
Abstract Not Available – First paragraph follows: Symptoms of brushy branch declined and fruit yield increased following application of boron to injured prune trees in test plots near Windsor.
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Red mite on citrus: Experiments designed to measure damage give bases for further studies
by Randolph T. Wedding , Louis A. Riehl , Lee R. Jeppson
pp9-12, doi#10.3733/ca.v012n08p9
Abstract
Abstract Not Available – First paragraph follows: Attempts to measure the effects of mite damage on various physiological processes in citrus plants—particularly the leaves—in field, greenhouse and laboratory experiments have added to the relatively little available information concerning the effects of red mite feeding.
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Tomato fertilizer trials: Close placement of fertilizers under direct-seeded tomatoes in comparative tests with sidedressing of the same materials
by John C. Lingle , J. P. Underbill , M. P. Zobel , Torrey Lyons
pp11-12, doi#10.3733/ca.v012n08p11
Abstract
Abstract Not Available – First paragraph follows: Slow growth of field seeded tomatoes and purple coloring of the leaves shortly after emergence may indicate a phosphorus deficiency.
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General Information

Growers face changing market: Changes in food distribution system affect the relationships between producers and the processing and marketing agencies
by Norman R. Collins, John A. Jamison
pp2-14, doi#10.3733/ca.v012n08p2
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