Irrigation practices, herbicide use and ground-water contamination in citrus production: a case study in California

The citrus industry in Tulare County, CA is a major user of herbicides. The California Department of Food and Agriculture (CDFA) conducted a mailing survey of citrus growers in Tulare County in 1988 to identify and characterize irrigation and herbicide practices that might be associated with reporte...

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Bibliographic Details
Published in:Agriculture, ecosystems & environment ecosystems & environment, 1992, Vol.41 (1), p.1-17
Main Authors: Pickett, C.H., Hawkins, L.S., Pehrson, J.E., O'Connell, N.V.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Soil and water pollution
Soil science
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Summary:The citrus industry in Tulare County, CA is a major user of herbicides. The California Department of Food and Agriculture (CDFA) conducted a mailing survey of citrus growers in Tulare County in 1988 to identify and characterize irrigation and herbicide practices that might be associated with reported well-water contamination by three herbicides commonly used in citrus production. These herbicides, in decreasing frequency of presence in well water, were simazine, diuron and bromacil. The response rate to the questionnaire was 41%. Simazine was rated as the most important herbicide used in citrus production. However, the response to the survey suggests a broad range of chemical weed-control practices. Results indicate that production of citrus plays a role in herbicide well water contamination.
ISSN:0167-8809
1873-2305
DOI:10.1016/0167-8809(92)90176-C