California Agriculture
California Agriculture
California Agriculture
University of California
California Agriculture

Archive

July-August 1987
Volume 41, Number 7

Peer-reviewed research and review articles

Reclaimed water for irrigation of vegetables eaten raw
by Richard G. Burau, Bahman Sheikh, Robin P. Cort, Robert C. Cooper, David Ririe
| Full text HTML  | PDF  
Highly treated municipal wastewater was as safe as well water for irrigating crops in a five-year study. (Infrared photo of test plots by Bill Wildman)
A five-year study revealed no public health risk associated with irrigation of raw-eaten vegetable crops with reclaimed domestic wastewater.
Quick tests for pesticide resistance in spider mites
by Elizabeth E. Grafton-Cardwell, Jeffrey Granett, Timothy J. Dennehy
| Full text HTML  | PDF  
Early detection helps growers to avoid wasted acaricide applications and to manage resistance.
A rapid bioassay that detects buildup of resistance can help growers avoid the expense and hazard of wasted pesticide treatments.
Control of spring dead spot of bermudagrass
by Howard D. Ohr, Margaret K. Murphy, Emmylou M. Krausman, Robert M. Endo, J. Michael Henry
| Full text HTML  | PDF  
Following outbreaks in the mid 1970s, the disease has spread in southern California. Benomyl gives control.
Many homeowners give up on bemrudagrass when dead spot becomes severe, but tests show the disease can be con trolled with fungicides.
Toxicity of pesticides to western predatory mite
by Marjorie A. Hoy, Janet Conley
| Full text HTML  | PDF  
Several pesticides showed low toxicity to the spider mite predator Metaseiulus occidentalis in laboratory tests.
Biological control of variegated grape leafhopper
by Charles H. Pickett, Lloyd T. Wilson, Daniel Gonzalez, Donald L. Flaherty
| Full text HTML  | PDF  
Imported forms of the parasitic wasp Anagrus epos showed some promise in Central Valley field-cage evaluations.
Two look-alike imported biotypes of a parasitic wasp are being tested against the variegated grape leafhopper in the San Joaquin Valley.
Waste lime supplies phosphorus to sugarbeet
by Robert L. Sailsbery, F. Jack Hills
| Full text HTML  | PDF  
Sugarbeet responded as well to waste lime as to phosphorus fertilizer, and lime aided seedling emergence.
Sugarbeet responded as well to waste lime as to phosphorus fertilizer. The lime aided seedling emergence and yields.
Controlling powdery mildew in greenhouse roses
by Albert O. Paulus, Seward T. Besemer, Jerry Nelson
| Full text HTML  | PDF  
Several fungicides tested controlled the disease in ‘Royalty’ rose, a particularly susceptible cultivar.
Agricultural policy implications of biotechnology
by Samuel H. Logan, Harold O. Carter, Luanne Lohr
| Full text HTML  | PDF  
Coordinated planning is needed to deal with potentially broad economic and biological aspects of new technology.
Advances in genetic engineering involve more than scientific breakthroughs. Potential economic effects - some possibly undesirable - also need to be considered.
California's shrinking farmland
by Ralph Grossi, Will Shafroth, John Hart, Michael J. Singer
| Full text HTML  | PDF  
Statewide action is needed to stem the loss of farmland to urbanization, erosion, salinization, and other causes.
Even with strong protective measures, California will probably continue to lose agricultural land to urbanization, erosion, and salinity.

News and opinion

Emerging issues in marketing
by Kenneth R. Farrell
Full text HTML  | PDF  
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July-August 1987
Volume 41, Number 7

Peer-reviewed research and review articles

Reclaimed water for irrigation of vegetables eaten raw
by Richard G. Burau, Bahman Sheikh, Robin P. Cort, Robert C. Cooper, David Ririe
| Full text HTML  | PDF  
Highly treated municipal wastewater was as safe as well water for irrigating crops in a five-year study. (Infrared photo of test plots by Bill Wildman)
A five-year study revealed no public health risk associated with irrigation of raw-eaten vegetable crops with reclaimed domestic wastewater.
Quick tests for pesticide resistance in spider mites
by Elizabeth E. Grafton-Cardwell, Jeffrey Granett, Timothy J. Dennehy
| Full text HTML  | PDF  
Early detection helps growers to avoid wasted acaricide applications and to manage resistance.
A rapid bioassay that detects buildup of resistance can help growers avoid the expense and hazard of wasted pesticide treatments.
Control of spring dead spot of bermudagrass
by Howard D. Ohr, Margaret K. Murphy, Emmylou M. Krausman, Robert M. Endo, J. Michael Henry
| Full text HTML  | PDF  
Following outbreaks in the mid 1970s, the disease has spread in southern California. Benomyl gives control.
Many homeowners give up on bemrudagrass when dead spot becomes severe, but tests show the disease can be con trolled with fungicides.
Toxicity of pesticides to western predatory mite
by Marjorie A. Hoy, Janet Conley
| Full text HTML  | PDF  
Several pesticides showed low toxicity to the spider mite predator Metaseiulus occidentalis in laboratory tests.
Biological control of variegated grape leafhopper
by Charles H. Pickett, Lloyd T. Wilson, Daniel Gonzalez, Donald L. Flaherty
| Full text HTML  | PDF  
Imported forms of the parasitic wasp Anagrus epos showed some promise in Central Valley field-cage evaluations.
Two look-alike imported biotypes of a parasitic wasp are being tested against the variegated grape leafhopper in the San Joaquin Valley.
Waste lime supplies phosphorus to sugarbeet
by Robert L. Sailsbery, F. Jack Hills
| Full text HTML  | PDF  
Sugarbeet responded as well to waste lime as to phosphorus fertilizer, and lime aided seedling emergence.
Sugarbeet responded as well to waste lime as to phosphorus fertilizer. The lime aided seedling emergence and yields.
Controlling powdery mildew in greenhouse roses
by Albert O. Paulus, Seward T. Besemer, Jerry Nelson
| Full text HTML  | PDF  
Several fungicides tested controlled the disease in ‘Royalty’ rose, a particularly susceptible cultivar.
Agricultural policy implications of biotechnology
by Samuel H. Logan, Harold O. Carter, Luanne Lohr
| Full text HTML  | PDF  
Coordinated planning is needed to deal with potentially broad economic and biological aspects of new technology.
Advances in genetic engineering involve more than scientific breakthroughs. Potential economic effects - some possibly undesirable - also need to be considered.
California's shrinking farmland
by Ralph Grossi, Will Shafroth, John Hart, Michael J. Singer
| Full text HTML  | PDF  
Statewide action is needed to stem the loss of farmland to urbanization, erosion, salinization, and other causes.
Even with strong protective measures, California will probably continue to lose agricultural land to urbanization, erosion, and salinity.

News and opinion

Emerging issues in marketing
by Kenneth R. Farrell
Full text HTML  | PDF  

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