Fig 1.
Droplet sampling locations in urban Mercer County, New Jersey, USA.
Five parcels were selected within a 48.6 ha plot (A through E) and four stations were sampled within each parcel (1 = Front, 2 = Alcove, 3 = Porch, 4 = Backyard). Figure was created in ArcGIS 10.2 (ESRI, Redlands, CA).
Fig 2.
Droplet sampling locations in suburban Monmouth County, New Jersey, USA.
Five parcels were selected within a 156.1 ha plot (A through E) and four stations were sampled within each parcel (1 = Front, 2 = Porch, 3 = Mid Yard, 4 = Backyard). Figure was created in ArcGIS 10.2 (ESRI, Redlands, CA).
Fig 3.
Rotating impactors used for droplet sampling of adulticidal spray plumes.
A) Florida Latham Bonds (FLB) rotary-type impactor with 3 mm rods. B) Hock rotary impactor with 25 mm microscope slides.
Table 1.
Spray plume droplet density (drops per mm2) and volume median diameter (μm; VMD) of a mosquito adulticide applied within urban Mercer County and suburban Monmouth County, New Jersey, USA.
Sampling was conducted within four stations at mid (46.77 ml/ha) and maximum (93.53 ml/ha) label application rates using Florida Latham Bonds (FLB) and Hock rotary impactors and measured by digital analysis.
Fig 4.
Combined mean values for droplet density (drops per mm2) and volume median diameter (μm; VMD) of spray plume from all sampling stations in urban Mercer and suburban Monmouth sampled by both impactor types (FLB and Hock).
Treatments with different letters denote significant differences within county by impactor type and asterisks denote significant differences between counties by ANOVA (P < 0.05).
Fig 5.
Combined droplet density (drops per mm2) and volume median diameter (μm; VMD) of spray plume from all sampling stations in urban Mercer at two different application rates sampled by Hock impactors and recorded by two analysis methods (digital and manual).
Treatments with different letters and asterisks denote significant differences by ANOVA (P < 0.05).