Samplers for evaluation and quantification of ultra-low volume space sprays

M. Farooq*, W. C. Hoffmann, T. W. Walker, V. L. Smith, C. A. Robinson, J. C. Dunford, I. W. Sutherland

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A field study was conducted to explore the suitability of 5 pesticide deposition samplers for airborne spray and ground deposits from ultra-low-volume (ULV) space sprays. Samplers included horizontally stretched stationary cotton ribbons at 2 heights, rotating ribbon, rotating Teflon slides, and filter paper. Slides were also used for droplet-size analysis. A set of 7 samplers of each type was placed at 1, 7, 15, 25, 40, 65, and 90 m from the spray line along the spray swath. Water and BVA13 oil with fluorescent dyes as tracers were sprayed with the use of a truck-mounted ULV sprayer at dusk and dawn. Results suggest that the horizontal and rotating cotton ribbons are best for quantification of airborne spray and filter paper is best for ground deposition collection. The rotating slide samplers only detected the BVA13 oil-based sprays.

Original languageEnglish
Pages (from-to)521-524
Number of pages4
JournalJournal of the American Mosquito Control Association
Volume25
Issue number4
DOIs
StatePublished - Dec 2009
Externally publishedYes

Keywords

  • Deposition
  • Samplers
  • Spray flux
  • Sprayer evaluation
  • Ultra-low-volume (ULV) sprays

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