California Agriculture
California Agriculture
California Agriculture
University of California
California Agriculture

Archive

October 1979
Volume 33, Number 10

Peer-reviewed research and review articles

The big fish: Restoring California's sturgeon population
by Ann McGuire
| Full text HTML  | PDF  
A program is underway at U.C., Davis to replenish populations of sturgeon in California, the only state in the union where commercial fishery has been prohibited since 1918 and where spawning grounds have been undisturbed.
Benefits of the Davis Aquaculture Program will be protection of sturgeon from extinction, enhancement of sport fishery, and provision of seedstock for commercial development.
Water conservation and management for foothill orchards
by Richard Bethell, Elias Fereres, Richard Buchner, Brian Fitzpatrick
| Full text HTML  | PDF  
Tests in El Dorado County show that allocations of water for irrigation should be based on site-specific variables rather than on a uniform distribution. Irrigating “on demand” resulted in topnotch fruit tree performance.
Late versus early initiation of controlled feeding of Leghorn layers
by Douglas R. Kuney, Milo H. Swanson
| Full text HTML  | PDF  
Controlled feeding depressed egg production of Leghorns and apparently lowered their resistance to other stresses, such as disease.
Egg production dropped when controlled feeding was introduced to laying hens and other stress was observed.
Spider mites and predators in San Joaquin Valley almond orchards
by Marjorie A. Hoy, R. T. Roush, Katherine B. Smith, Les W. Barclay
| Full text HTML  | PDF  
Metaseiulus occidentalis was found, by sampling, to be an important predator of spider mites in southern California almond orchards, but not in the north, where European red mites and brown mites were likely to predominate. One conclusion: different combinations of spider mites and predators call for different sampling and pest management schemes.
Natural enemies of spider mites can vary from orchard to orchard and from section to section in California.
Pollen transmission of avocado sunblotch virus experimentally demonstrated
by Paul R. Desjardins, Robert J. Drake, E. Laurence Atkins, Berthold O. Bergh
| Full text HTML  | PDF  
In an experiment pollen transmission of sunblotch virus in avocado has been demonstrated in a caged field tree, utilizing honey bee pollination.
Warm season turf growth control with Embark
by Henry Hield, Stuart Hemstreet, Victor A. Gibeault, Victor B. Youngner
| Full text HTML  | PDF  
Application of Embark, a new chemical to regulate growth of turf, may be useful in difficult-to-mow locations, and in combination with chlorflurenol it may be a cheaper way to inhibit growth.
Sulfur and Bayleton compared in control of sugar beet powdery mildew
by Demetrios G. Kontaxis
| Full text HTML  | PDF  
The systemic fungicide Bayleton applied on 5-month-old diseased sugar beet plants gave excellent, protracted control of powdery mildew. Yields of treated plants were 17 percent higher than for nontreated.
Blayleton is seen as a convenient and effective systemic fungicide responsible for increasing yields in sugar beets.
Vacuum cooling wrapped lettuce
by Charles C. Cheyney, Robert F. Kasmire, Leonard L. Morris
| Full text HTML  | PDF  
Some kinds of film wrapping of lettuce interfere with effective vacuum cooling and can result in detrimental transit temperatures. Inadequate cooling can also lead to widespread decay.
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October 1979
Volume 33, Number 10

Peer-reviewed research and review articles

The big fish: Restoring California's sturgeon population
by Ann McGuire
| Full text HTML  | PDF  
A program is underway at U.C., Davis to replenish populations of sturgeon in California, the only state in the union where commercial fishery has been prohibited since 1918 and where spawning grounds have been undisturbed.
Benefits of the Davis Aquaculture Program will be protection of sturgeon from extinction, enhancement of sport fishery, and provision of seedstock for commercial development.
Water conservation and management for foothill orchards
by Richard Bethell, Elias Fereres, Richard Buchner, Brian Fitzpatrick
| Full text HTML  | PDF  
Tests in El Dorado County show that allocations of water for irrigation should be based on site-specific variables rather than on a uniform distribution. Irrigating “on demand” resulted in topnotch fruit tree performance.
Late versus early initiation of controlled feeding of Leghorn layers
by Douglas R. Kuney, Milo H. Swanson
| Full text HTML  | PDF  
Controlled feeding depressed egg production of Leghorns and apparently lowered their resistance to other stresses, such as disease.
Egg production dropped when controlled feeding was introduced to laying hens and other stress was observed.
Spider mites and predators in San Joaquin Valley almond orchards
by Marjorie A. Hoy, R. T. Roush, Katherine B. Smith, Les W. Barclay
| Full text HTML  | PDF  
Metaseiulus occidentalis was found, by sampling, to be an important predator of spider mites in southern California almond orchards, but not in the north, where European red mites and brown mites were likely to predominate. One conclusion: different combinations of spider mites and predators call for different sampling and pest management schemes.
Natural enemies of spider mites can vary from orchard to orchard and from section to section in California.
Pollen transmission of avocado sunblotch virus experimentally demonstrated
by Paul R. Desjardins, Robert J. Drake, E. Laurence Atkins, Berthold O. Bergh
| Full text HTML  | PDF  
In an experiment pollen transmission of sunblotch virus in avocado has been demonstrated in a caged field tree, utilizing honey bee pollination.
Warm season turf growth control with Embark
by Henry Hield, Stuart Hemstreet, Victor A. Gibeault, Victor B. Youngner
| Full text HTML  | PDF  
Application of Embark, a new chemical to regulate growth of turf, may be useful in difficult-to-mow locations, and in combination with chlorflurenol it may be a cheaper way to inhibit growth.
Sulfur and Bayleton compared in control of sugar beet powdery mildew
by Demetrios G. Kontaxis
| Full text HTML  | PDF  
The systemic fungicide Bayleton applied on 5-month-old diseased sugar beet plants gave excellent, protracted control of powdery mildew. Yields of treated plants were 17 percent higher than for nontreated.
Blayleton is seen as a convenient and effective systemic fungicide responsible for increasing yields in sugar beets.
Vacuum cooling wrapped lettuce
by Charles C. Cheyney, Robert F. Kasmire, Leonard L. Morris
| Full text HTML  | PDF  
Some kinds of film wrapping of lettuce interfere with effective vacuum cooling and can result in detrimental transit temperatures. Inadequate cooling can also lead to widespread decay.

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