California Agriculture, November 1960

Volume 14, Number 11
Forage production on irrigated pastures

research articles

Imported french parasite of walnut aphid established in California
by E. I. Schlinger , K. S. Hagen , R. Van den Bosch
pp3-4, doi#10.3733/ca.v014n11p3
Abstract
Abstract Not Available – First paragraph follows: Imported from in 1959, a tiny wasp—Trioxys pallidus Haliday—a natural parasitic enemy of the walnut aphid—Chromaphis juglandicola (Kaltenbach)—has become established, at least locally, in California.
Expanded Abstract | PDF

Potentially serious cotton disease angular leaf spot established in California
by W. C. Schnathorst , P. M. Halisky
pp5-6, doi#10.3733/ca.v014n11p5
Abstract
Abstract Not Available – First paragraph follows: Angular leaf spot of cotton is caused by the bacterium—Xanthomonas malvacearum—which enters the plant through wounds or natural openings. Circular translucent lesions on cotyledons, angular lesions on leaves, systemic infection of leaves, stem lesions, and boll rot—all caused by the pathogen—have been observed in California. Yield of cotton may be affected by the disease indirectly, by stunting and premature defoliation of plants, or directly, by loss of bolls due to boll rot.
Expanded Abstract | PDF

Nitrogen fertilization of irrigated pastures to improve forage production capacity
by Maurice L. Peterson , Leo E. Bendixen
pp7-8, doi#10.3733/ca.v014n11p7
Abstract
Abstract Not Available – First paragraph follows: Increasing production costs are forcing many growers to consider nitrogen fertilization as one means of increasing yields of irrigated pastures.
Expanded Abstract | PDF

Picking efficiency of cotton picker improved by unsynchronized speeds
by L. M. Carter , J. R. Tavernetti
pp9, doi#10.3733/ca.v014n11p9
Abstract
Abstract Not Available – First paragraph follows: Picking efficiency of barbed-spindle cotton pickers was increased an average of 2.5% in a field test in the San Joaquin Valley.
Expanded Abstract | PDF

Cattle feeding trials with acorns and oak leaves indicate need for supplementing dry range forage
by Kenneth A. Wagnon
pp10-12, doi#10.3733/ca.v014n11p10
Abstract
Abstract Not Available – First paragraph follows: The incidence of deformed calves—acorn calves—has decreased with the widening use of supplemental range feeding and improved breeding herd management. Some stockmen operating in oak areas in California have long considered that consumption of acorns by pregnant range cattle contributed to the birth of deformed calves, to loss of weight, abortions, and even death. Other stockmen have claimed acorns were not harmful but were good cattle feed.
Expanded Abstract | PDF

Nutritional needs of fruit trees indicated by leaf analysis
by Omund Lilleland , K. Uriu
pp12, doi#10.3733/ca.v014n11p12
Abstract
Abstract Not Available – First paragraph follows: Deficiencies and excesses of essential elements occur in various California orchards. A major research project is aimed at detecting those faults and restoring the fruit trees to healthy and profitable condition.
Expanded Abstract | PDF

Plant breeding of commercial peppers for disease resistance
by Paul G. Smith , L. F. Lippert
pp13, doi#10.3733/ca.v014n11p13
Abstract
Abstract Not Available – First paragraph follows: Many forms of peppers varying widely in fruit size, shape, flavor, color and pungency are encompassed in the genus Capsicum. The commercial types grown in California include Bell or sweet peppers and Floral Gem for the fresh market and for processing; pimiento for processing; and pungent chili types for the fresh market, for canning, and dehydration.
Expanded Abstract | PDF

editorial, news, letters & science briefs

New method for measuring movement of soil water
by D. R. Nielsen
pp14, doi#10.3733/ca.v014n11p14a
PDF

Seedless watermelons: In southern California
by L. F. Lippert
pp14, doi#10.3733/ca.v014n11p14b
PDF

Principal damage of green apple aphid
by P. H. Westigard , H. F. Madsen
pp14, doi#10.3733/ca.v014n11p14c
PDF

Mechanical grape harvest
by A. J. Winkler , L. H. Lamouria
pp14, doi#10.3733/ca.v014n11p14d
PDF

Black-eyed peas as swine feed
by Hubert Heitman
pp14, doi#10.3733/ca.v014n11p14e
PDF

Solvent seasoning of redwood
by W. B. Fearing
pp15, doi#10.3733/ca.v014n11p15a
PDF

Elongation and bending of asparagus spears
by L. L. Morris , A. E. Watada
pp15, doi#10.3733/ca.v014n11p15b
PDF

Plastic covers for vegetable crop frost protection
by C. A. Shadbolt
pp15, doi#10.3733/ca.v014n11p15c
PDF

Virus disease of the granulate cutworm
by Edward A. Steinhaus
pp15, doi#10.3733/ca.v014n11p15d
PDF

Fruit cartons in bulge test
by Rene Guillou
pp15, doi#10.3733/ca.v014n11p15e
PDF

Nematode control for deciduous fruit and nut trees
by B. F. Lownsbery
pp15, doi#10.3733/ca.v014n11p15f
PDF

Study of diurnal changes in plant transpiration
by Yoash Vaadia
pp16, doi#10.3733/ca.v014n11p16
PDF

General Information

Cooperative buying for mass merchandising by retail grocery firms
by D. B. Deloach
pp2-3, doi#10.3733/ca.v014n11p2
PDF