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Public Works - Mosquito Control 

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Threat Condition
Threat Condition

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THE BUZZ

Volume 6, 9   (Week 25)

June 21, 2007

 
Mosquito Activity (Scale from 0 to 5)
  • Trap counts came back up this week as expected. Mosquitoes were able to quickly multiply and take advantage of the wet conditions the last week and a half. Dry conditions are now widespread in the city.
  • Over all mosquito activity is still a 1 at this time. Sustained rainfall could cause mosquito activity to drastically increase to a 2 or 3 later this season.
Surveillance
  • There is minimal standing water in the city as most areas have dried out from the recent rain.
  • We conducted normal trapping schedule for this week 5 CDC, 20 OFP.
  • 5 CDC style traps were set this week, with a total of 518 mosquitoes caught for an average of 104 per trap up from 70 per trap last week.
  • 20 Omni-Directional Fay-Prince (OFP) were set this week, with a total of 304 tiger mosquitoes for an average of 16 per trap. This indicates a quadrupling of the tiger mosquito populations in one week.
  • Most areas breeding last week have dried up.
Weekly Average City-wide Asian Tiger Mosquito Counts
Service Requests
  • We had 2 service requests this week; both were to report problems with midges in the Lake Shores area of the city.
Control
  • Spray crews truck fogged for adult mosquitoes around 2,709 acres this week.
  • Additional truck fogging will be conducted next week.

Mosquito Trap Counts

 
City of Portsmouth, Virginia - All rights reserved.

last updated July, 2007