July 26, 2007

• Trap counts were low again this week due to the dry conditions. The only significant increase this week was from tiger mosquitoes in a few spots.
• Although mosquito trap counts are low the overall mosquito activity remains at a 2 this week due to the horse testing positive for Eastern Equine Encephalitis in Suffolk, and mosquitoes testing positive in Suffolk and Chesapeake around the Great Dismal Swamp.
• No mosquito samples have been sent for testing this year in Portsmouth due to the low trap counts, we have not trapped enough mosquitoes to send for testing this year.

• Rainfall was minimal last week and there is still very little standing water in the city. The average rainfall last week was .83 inches. Some areas received close to an inch of rain last week.
• 5 CDC style traps were set this week, with a total of 82 mosquitoes caught for an average of 16 per trap. CDC trap counts were about the same as last week.
• 19 Omni-Directional Fay-Prince (OFP) were set this week, with a total of 342 tiger mosquitoes for an average of 18 per trap. Tiger mosquito dropped slightly this week, with the exception of a few hot spots.

• We had 1 service call this week. This brings the total for the year to 20 calls.

• The isolated rain showers have kept crews busy checking areas for standing water. Most all areas have dried up in less than 5 days preventing mosquitoes from emerging.
• Crews treated 2,796 acres with truck sprayers for adult mosquitoes earlier this week.