California Agriculture, July 1948

Volume 2, Number 7
Spray equipment for effective weed control

research articles

Wedgeleaf ceanothus, range brush: Increase studied and control method recommended
by H. H. Biswell , J. F. Street
pp3-12, doi#10.3733/ca.v002n07p3
Abstract
This study was carried on cooperatively with the State Division of Fish and Game and the Federal Fish and Wildlife Service.
Expanded Abstract | PDF

Codling moth on walnuts: Southern California studies of varying methods of DDT application
by J. C. Ortega
pp4-14, doi#10.3733/ca.v002n07p4
Abstract
Not available – first paragraph follows: Ordinary spray rig applications of DDT for control of codling moth on walnuts were given comparative tests against several other methods of application during the 1947 experimental program.
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Washington navels: 2,4-D water sprays to reduce preharvest drop of oranges
by W. S. Stewart , L. J. Klotz , H. Z. Hield
pp5, doi#10.3733/ca.v002n07p5
Abstract
Not available – first paragraph follows: During the 1946—47 Washington navel orange harvest, trials were made on the use of 2,4-D water sprays to reduce mature fruit drop—preharvest drop.
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Good range management: Practices are especially important to stockmen during years of deficient rainfall
by R. Merton Love
pp6, doi#10.3733/ca.v002n07p6
Abstract
Not available – first paragraph follows: The California range now is predominantly the annual type.
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Chemical weed control equipment: Pumps, power, tanks, booms, and nozzles must fit crop requirements for best results
by Norman B. Akesson
pp7-16, doi#10.3733/ca.v002n07p7
Abstract
Not available – first paragraph follows: Chemical weed control is becoming common practice in California and many different types of equipment are on the market.
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New seedless table grapes: Perlette and Delight, two new early maturing varieties
by H. P. Olmo
pp8-14, doi#10.3733/ca.v002n07p8
Abstract
The following extract is from Experiment Station Bulletin 705, which may be obtained without charge by addressing the Publications Ofice, College of Agriculture, University of California, Berkeley 4, California. Cuttings of Perlette and Delight are not offered for sale or distribution by the University of Calijornia.
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Freestone peaches: Successfully dried when dehydrated according to recommended practice
by E. M. Mrak , R. L. Perry
pp9-16, doi#10.3733/ca.v002n07p9
Abstract
Detailed recommendations and detachable temperature charts are available in California Experiment Station Circular 381 “Dehydrating Freestone Peaches” which may be obtained without cost from the ofice of the Farm Advisor or by addressing a request to Publications Office, University of California College of Agriculture, Berkeley 4, California.
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Caterpillars on tomatoes: Recognition of the kind is the first requirement in control program
by A. E. Michelbacher , W. W. Middlekauff , N. B. Akesson
pp10, doi#10.3733/ca.v002n07p10
Abstract
A detailed report on this subject, with control recommendations, is published in the Agricultural Experiment Station Circular 384, “Controlling Common Pests of Tomato in Northern California,” and is available without charge at the local office of the Farm Advisor or by addressing the Publications Office, College o/ Agriculture, Berkeley 4, California.
Expanded Abstract | PDF

Sulfur house operation: Simple procedure requires good materials and exacting care
by H. J. Phaff , E. M. Mrak
pp11, doi#10.3733/ca.v002n07p11
Abstract
A detailed report on this subject is in the recently published Agricultural Experiment Station Circular 382 “Sulfur House Operation” whirh is available without cost at the local ofice of the Farm Advisor or by addressing the Publications Ofice, College of Agriculture, Berkeley 4, Calijornia.
Expanded Abstract | PDF

Salt water in wells: Intrusion into water wells limited to certain areas
by C. N. Johnston
pp12, doi#10.3733/ca.v002n07p12
Abstract
Not available – first paragraph follows: Salt-water contamination of wells, causing them to supply brackish water which will injure the crops they irrigate, is a probability in very limited areas only.
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Dry bark of lemons prevalent: In coastal areas on various rootstocks and found to extend inland
by E. C. Calavan , F. A. White
pp13-15, doi#10.3733/ca.v002n07p13
Abstract
Not available – first paragraph follows: Dry bark kills or renders worthless a great many lemon trees every year.
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California blackeye 5: State's third most important dry bean being improved for wilt resistance
by Francis L. Smith
pp14, doi#10.3733/ca.v002n07p14
Abstract
Not available – first paragraph follows: The blackeye variety of cowpeas is classed as a dry bean in California but in the southern states it is known as the Blackeye pea.
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Red scale on citrus: Use of DDT for control studied
by G. E. Carman
pp15, doi#10.3733/ca.v002n07p15
Abstract
Not available – first paragraph follows: DDT-kerosene sprays for control of red scale on citrus are not recommended beyond very limited field trials because of disadvantages and hazards associated with their use.
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General Information

Walnut situation and outlook: As of April, 1948
by George B. Alcorn
pp2, doi#10.3733/ca.v002n07p2
PDF