Canopy Penetration and Deposition of Barrier Sprays from Electrostatic and Conventional Sprayers
Abstract
An experimental study was conducted to investigate the usefulness of electrostatic and conventional sprayers for barrier applications. Two conventional and three electrostatic sprayers were used in the study. Usefulness of the sprayers was rated based on penetration of spray into and deposition onto 2 sides of leaves on natural vegetation. Bifenthrin (TalstarTM adulticide) was applied at labeled rate, fluorescent dye was added to the tank mix as tracer, and all sprayers applied the dye and insecticide at the same rate. The results indicated that sprayers producing larger droplets produced significantly higher deposition on vegetation in barrier applications than the sprayers producing smaller droplets. Sprayers with higher air velocity at the nozzle discharge proved significantly better for barrier sprays than the sprayers with lower air velocity. Electrostatic sprayers did not show any improvement in deposition on vegetation or in penetration into vegetation over the conventional sprayers. There was no difference in deposition between truck-mounted and backpack sprayers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2009
- Accession Number
- ADA507856
Entities
People
- B. Fritz
- B. Quinn
- C. A. Robinson
- D. Szumlas
- J. Hogsette
- M. Farooq
- T. W. Walker
- U. Bernier
- V. L. Smith
- W. C> Hoffmann
- Y. Lan
- Yihe Huang
Organizations
- Agricultural Research Service