California Agriculture, June 1954

Volume 8, Number 6
Temperature effects on feed utilization

research articles

Penetration of packaging films: Film materials used for food packaging tested for resistance to some common stored-product insects
by Paul D. Gerhardt , David L. Lindgren
pp3-4, doi#10.3733/ca.v008n06p3
Abstract
Abstract not Available – first paragraph follows: A nontransparent laminated film containing aluminum foil proved relatively resistant to insect penetration– but not insect proof–in tests of film materials used for packaging dried fruits, nuts, candies, cereals, grains, meats, cheese, and other food products.
Expanded Abstract | PDF

Study of systemic insecticides: Location and amounts of residue in plant tissues determined with aid of radio-phosphorus tracers
by R. L. Metcalf , R. B. March , T. R. Fukuto
pp5-6, doi#10.3733/ca.v008n06p5
Abstract
Abstract not Available – first paragraph follows: The systemic insecticides – schradan – octamethyl pyrophosphoramide and demeton or Systox–O,O-diethyl O-ethyl-beta-mercaptoethyl thionphos-phate–and their derivatives have shown unusual promise for the control of mites and aphids and other sucking insects of a variety of agricultural crops.
Expanded Abstract | PDF

Biuret, toxic form of nitrogen: Soluble nitrogen compounds are not of equal value as fertilizers as shown by tests with citrus and avocado
by A. R. C. Haas , Joseph N. Brusca
pp7-11, doi#10.3733/ca.v008n06p7
Abstract
Abstract not Available – first paragraph follows: Biuret–a compound form of nitrogen obtainable from urea–was recently tested for its toxic effect on the growth of citrus and avocado.
Expanded Abstract | PDF

Effect of temperature on swine : Influence of environment on feed utilization Studied for improvement in efficiency of farm structues
by Hubert Heitman , T. E. Bond , C. F. Kelly
pp8-9, doi#10.3733/ca.v008n06p8
Abstract
Abstract not Available – first paragraph follows: Weather temperatures have a direct bearing on the cost of livestock production and profit.
Expanded Abstract | PDF

Fungi and shell bark of lemon: Complex disorder of bearing lemon trees studied to establish role of fungi and control of the disease
by E. C. Calavan , L. G. Weathers
pp10-11, doi#10.3733/ca.v008n06p10
Abstract
Abstract not Available – first paragraph follows: The best and cheapest shell-bark control–the only real control–is the use of resistant lemon selections on good root-stocks.
Expanded Abstract | PDF

Crop rotation and citrus: Cropping old citrus soil to other plants studied to learn effect on the growth of citrus replants
by J. P. Martin , J. O. Ervin
pp12-16, doi#10.3733/ca.v008n06p12
Abstract
Abstract not Available – first paragraph follows: When some plants are grown in the same soil for long periods of time, organisms detrimental to the species develop and reduce the growth of the plants or replants, if perennials, and of subsequent crops, if annuals.
Expanded Abstract | PDF

Variable leaf punch: Improved foliage sampling tool aid in studies with unit leaf sections
by Gordon L. Smith , Donald E. Little
pp13, doi#10.3733/ca.v008n06p13
Abstract
Abstract not Available – first paragraph follows: Developed for taking unit area samples of cotton leaves, an improved leaf punch has advantages for the entomologist, the plant pathologist, and for others working in plant sciences.
Expanded Abstract | PDF

Two maior pests on apples: Spider mite and woolly apple aphid infestation in late summer damaging to apples for processing
by Harold F. Madsen , Arthur D. Borden , Edward C. Koch
pp14-15, doi#10.3733/ca.v008n06p14
Abstract
Abstract not Available – first paragraph follows: Acaricieles–with long residual value– prevent late season buildup of European red mite and 2-spot mite populations on apples, but control of woolly apple aphid usually requires the inclusion of an aphi-cide in the mite treatment.
Expanded Abstract | PDF

New banana squash: Improvement sought in strain released to seedsmen in 1953
by Glen N. Davis
pp15, doi#10.3733/ca.v008n06p15
Abstract
Abstract not Available – first paragraph follows: The orange banana squash–which originated as a selection from the regular or Pink Banana variety–differs from the parent variety in many respects.
Expanded Abstract | PDF

General Information

Insurance based on temperature: Protection against citrus losses from frost damage involves solution of difficult actuarial problems
by M. Lee
pp2, doi#10.3733/ca.v008n06p2
PDF