Week 39 – Sept 23-29

2012 MOSQUITO REPORT: WEEK 39

Report based on data collected from traps deployed the week of September 23-29, 2012. Report prepared by Chan Suom, M.S., Dave Lawson, and Nate Boonisar.

1. CURRENT MOSQUITO ACTIVITY/TREND

CDC Light Traps:
For the most part, host-seeking light traps have collected average numbers of mosquitoes for this time of the season. Foxborough indicated a rise in Aedes vexans populations whereas Canton reported a lower than average collection.

Gravid Traps:
Gravid trap collections have returned to average sized collections. Bellingham, Franklin, and Stoughton show an increase only in Ochlerotatus japonicus but a decline in Culex pipiens/restuans. Dedham, Norwood, and Westwood had lower than average collections.

 2. CURRENT PREDOMINANT SPECIES

CDC Light Traps:
The most common CDC-trapped mosquitoes in Norfolk County this week were Aedes vexans though their numbers were very low.

Gravid Traps:
The trend has reversed, and at this time of the season, Ochlerotatus japonicus is the most abundant species in gravid traps throughout Norfolk County.

3. COMPARISON TO PREVIOUS SEASON

The overall mosquito population for this week is average for this time of the season. A combination of cooler weather and lack of significant, widespread rainfall are the main factors for our current condition. With cooler weather arriving, we expect mosquito populations to dwindle further.

4. WEATHER SUMMARY

Not available this week.

5. NUMBER OF REQUESTS FOR SERVICE

NCMCD has received 8,990 calls year to date for services as of 9/29/12.

6. MCP/COMMISSION RESPONSE

The District has stopped taking requests for ULV applications and larviciding, has suspended ULV applications, and is now focused on conducting water management work.

Contact

144 Production Rd, Suite C

Walpole, MA 02081

Office: (781) 762-3681
Fax: (781) 769-6436