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Employing GIS Technology For Mosquito Larvae Surveillance and Control

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elmer
19 diapositives · 316 Views · Aug 28, 2014

This program at Fort Meade implements GIS technology to enhance mosquito larvae surveillance, optimizing control measures against West Nile Virus (WNV). Utilizing Trimble GeoExplorer data receivers and ArcView GIS software, technicians collect crucial data on larvae presence, water maintenance conditions, and pesticide application. With an urban setting and diverse landscapes, GIS significantly improves efficiency by reducing errors and time in monitoring. The system enables easy viewing of surveillance points and integration of previous year's data, supporting sustained and effective mosquito control efforts.

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  1. Employing GIS Technology For Mosquito Larvae Surveillance and Control FGGM WNV Prevention Program

  2. Equipment Hardware/Software • Trimble GeoExplorer3 data receivers • Trimble Pathfinder Office Software • Used to set up data files in receivers • ArcView GIS software

  3. Site Description • Ft. Meade located almost midway between DC and Baltimore • 5560 acre urban/industrial setting with open space • 66 miles of paved road 1,575 buildings • Golf courses, athletic fields, lawns, parade fields, playgrounds, parks, cemeteries, office buildings and residential communities

  4. GIS Process • Data Dictionary uploaded into receivers • Site • Description (manhole, inlet, standing water etc.) • Wet (yes, no) • Maintenance (good, clogged, debris) • Area ID (numeric value assigned to area) • Larvae • Present (yes, no) • Altosid Briquette ( numeric amount) • Bti Briquette (numeric amount) • Larvae collected (yes, no)

  5. Process • Data is collected in the field by technicians and entered into receivers • Data is downloaded from receivers back at office • Data is exported into ArcView shapefiles • Data can be queried by attributes through ArcView to select any known value in data dictionary and displayed on aerial overheads of the installation or installation CAD drawings

  6. Surveillance Points

  7. Blue dots = larvae foundYellow dots = survey areas

  8. Blue dots = larvicide applied

  9. Red = Clogged basin

  10. Blue = Larvae foundGreen = SWMA

  11. Potential Trapping Sites

  12. Six Positive Pools Traps HAGT and HAGT-5 Adult Mosquito Pesticide Treatment Area

  13. Summary • GIS data system is saving an enormous amount of time and reducing errors in missed survey points • Technician’s surveillance points can be easily viewed in relation to the map • Data points can be queried as to pesticide use, larvae found, storm water maintenance issues, etc. • Concentrations of larvae can be easily viewed and mosquito trapping/control efforts can be directed toward those areas

  14. This system replaces the topo map/spreadsheet system we were using in the past to track mosquito larvae sites and larviciding efforts • Previous year’s data can be easily queried and State larviciding permitting process should be less arduous the following year • Future data layers: • Dead bird locations (species, condition, tested) • Trap locations • Trap type and trap data (mosquito count, positive pools yes/no)

  15. Questions? Kevin R. Fay Installation Pest Management Coordinator Fort Meade, Maryland 301-677-6023/2521 fayk@emh1.ftmeade.army.mil