Residual Toxicity of Some Fluoroaliphatic Sulfones to the Red Imported Fire Ant, Solenopsis Invicta (Hymenoptera: Formicidae)

C. S. Lofgren, W. A. Banks, R. K. Vander Meer, D. F. Williams


Thirty-six fluoroaliphatic sulfones were tested to determine their residual toxicity to Solenopsis invicta Buren in soil. Six of the compounds gave >90% kill of the ants after they were exposed for 4 days at 10 ppm. When tested at 1.0 ppm, only one compound, AI3-10841, gave appreciable mortality. This compound was tested at 10 ppm in soil held outdoors under ambient summer conditions. Mortality 8 days following initial exposure to samples of this soil was 100% for 12 wks and 91 to 100% from 20 to 36 wks.

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