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ARS Home » Southeast Area » Gainesville, Florida » Center for Medical, Agricultural and Veterinary Entomology » Insect Behavior and Biocontrol Research » Research » Publications at this Location » Publication #288196

Research Project: Biologically Based Management of Invasive Insect Pests and Weeds

Location: Insect Behavior and Biocontrol Research

Title: Evaluation of mustard plants and commercial oils as repellents against Bemisia argentifolii (Hemiptera)

item Legaspi, Jesusa - Susie

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 10/26/2012
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: A major insect pest of vegetables and horticultural crops in the southeast US is the silverleaf whitefly, Bemisia argentifolii. To control this whitefly, we evaluated the effect of commercial products and repellent plants. In laboratory tests, whiteflies were released in potted squash plants sprayed with mustard oil, garlic oil, horticultural petroleum oil, hot pepper wax and a water control. We found that the plants sprayed with the oils had significantly lower numbers of whiteflies compared to those sprayed with hot pepper wax or water alone. It is possible that whiteflies were repelled by volatiles from the oils. In a separate study, we studied the effect of plant volatiles on whitefly behavior using specialized odor detecting equipment. We found that whiteflies moved to collard plants and were repelled by giant red mustard plants. Our results indicate that giant red mustard plants and commercial oils such as mustard, garlic and horticultural oils are promising control agents against whiteflies in vegetable plants.