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While extracts from exotic plants may thwart whiteflies in the future, other remedies may be right in your kitchen. ARS researchers in Arizona found that a mix of common liquid dishwashing detergent and cooking oil kills sweetpotato whiteflies, as well as several common home garden pests. At test plots in Maricopa, Arizona, technician Barbara Hefner and biological aide Bryan Merrill spray a cottonfield with a fine mist of vegetable oil and dishwashing detergent.
Model release not available. Property release not required.