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peer-reviewed research article

Several fungicides control powdery mildew in peppers

authors

Richard Smith, Monterey County
Steven T. Koike, Monterey County
Mike Davis, UC Davis
Krishna Subbarao, UC Davis
Frank Laemmlen, Santa Barbara County

publication information

California Agriculture 53(6):40-43. DOI: 10.3733/ca.v053n06p40. November-December 1999.

abstract

In the early 1990s, powdery mildew became a recurring problem on chili peppers and bell peppers in all production districts in California. Growers were initially unprepared to deal with the disease. Research has shown that several fungicides can control this disease. Sulfur is most effective as a preventive fungicide. In variety trials, four experimental varieties were significantly less susceptible to powdery mildew than the standard commercial variety. Genetic resistance is likely to eventually be incorporated into commercial bell pepper varieties.

author affiliations

R.F. Smith is Farm Advisors, Monterey County; S.T. Koike is Farm Advisors, Monterey County; M. Davis is Extension Plant Pathologists, Department of Plant Pathology, UC Davis; K. Subbarao is Extension Plant Pathologists, Department of Plant Pathology, UC Davis; F. Laemmlen is Farm Advisor, Santa Barbara County.

author notes

The authors thank the cooperating growers and crop consultants, as well as the California Pepper Commission, for their support of this research.

Further reading

Blazquez CH. A powdery mildew of chilli caused by Oidiopsis sp. Phytopathology. 1976. 66:7.

Correll JC, Gordon TR, Elliott VJ. Host range, specificity, and biometical measurements of Leveillula taurica in California. Plant Disease. 1987. 71:51. DOI: 10.1094/PD-71-0248 [CrossRef]

Hartz TK, LeStrange M, Mayberry K, Smith RF. Bell Pepper Production in California. Vegetable Research and Information Center, Vegetable Production Series. DANR Publication 7217 1996.

Reuveni R, Rotem J. Epidemics of Leveillula taurica on tomatoes and peppers as affected by the conditions of humidity. Phytopathology. 1973. 76:7.

Smith RF, Laemmlen F, Koike ST, Subbarao K. Strategies to control powdery mildew. Pepper News. 1998. 6:


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