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Public Works - Mosquito Control 

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Threat Condition
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THE BUZZ

Volume 5, 20   (Week 34)

August 24, 2006

 
Mosquito Activity (Scale from 0 to 5)
  • The city received 0.50 inches of rain last week. Trap counts remain low as dry conditions prevail in the city; the only significant mosquito populations are container breeding tiger mosquitoes.
  • Despite the declining trap counts and dry conditions the mosquito activity remains a 2 because of the presence of EEE in mosquitoes. Citizens should keep vigilant emptying out standing water around their houses and use insect repellant that contains DEET or Picaridin to prevent mosquito bites.
Surveillance
  • 10 CDC style light traps were set this week, a total of 232 mosquitoes were caught, for an average of 23 per trap. Trap counts increased slightly from last week. Trap counts continue to remain low because of the lack of rainfall.
  • 7 Gravid style traps were set this week, a total of 153 mosquitoes were caught, for an average of 22 per trap. Gravid trap counts were down 25% from last week.
  • Staff will continue to submit mosquito pools for virus testing as needed for the remainder of the season.
Service Requests
  • We received no complaint calls this week.
Mosquito Control Facts (Spotlight on rain gutters)
  • Clogged up rain gutters can produce large numbers of tiger mosquitoes. Leaves and pine needles will clogg rain gutters over time. Clean the rain gutters at least twice per year to keep water flowing. Houses under trees may require more frequently cleaning any time leaves or pine needles start to accumulate.

Rain Gutters
 

Mosquito Trap Counts

 
City of Portsmouth, Virginia - All rights reserved.

last updated August, 2006