General statement from the State Reclamation & Mosquito Control Board

 


Central Mass. Mosquito Control Project

Weekly Report- 9/25/16-10/1/16

EPI Week #39

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

75

524

33

103

674

1769

Total Specimens

1156

51025

577

4826

14031

77870

No. Pools WNV +

0

2†

0

0

14†

16†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex pipiens/restuans complex collected in Auburn on 8/2/16

†Pool of WNV+ Coquillettidia perturbans collected in Auburn on 8/2/16

†Pool of WNV+ Coquillettidia perturbans collected in Hopkinton on 8/5/16

†Pool of WNV+ Culex pipiens/restuans complex collected in Chelmsford on 8/16/16

†Pool of WNV+ Culex species collected in Millbury on 8/19/16

†Pool of WNV+ Culex species collected in Auburn on 8/23/16

†Pool of WNV+ Culex species collected in Westborough on 8/24/16

†Pool of WNV+ Culex species collected in Boylston on 8/25/16

†Pool of WNV+ Culex species collected in Millbury on 8/25/16

†Pool of WNV+ Culex species collected in Millbury on 8/25/16

†Pool of WNV+ Culex species collected in Millbury on 9/1/16

†Pool of WNV+ Culex species collected in Auburn on 9/7/16

†Pool of WNV+ Culex species collected in Millbury on 9/8/16

†Pool of WNV+ Culex species collected in Berlin on 9/8/16

†Pool of WNV+ Culex species collected in Auburn on 9/13/16

†Pool of WNV+ Culex species collected in Clinton on 9/15/16

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 54.79°F with a recorded high temperature of 72.30°F and a recorded low temperature of only 35.50°F.  There was 0.65 inches of precipitation observed this week.  Compared to the previous week, it was approximately 8.17°F cooler on average, and rained 0.57 inches less.  There has been 0.22 inches of rain accumulated in October, after 2.09 inches for the month of September.

 

CMMCP Mosquito Summary*-

Target Species                Δ From        Δ From        Predominant Trap Site(s)

                                        Last Week    Last Year

Aedes vexans

-47.73%

+2200%

Leominster, Gardner

Coquillettidia perturbans

-50.00%

-50.00%

Webster

Culiseta melanura

-100.0%

-100.0%

N/A

Ochlerotatus canadensis

-66.67%

+00.00%

Webster

Culex Species

-90.00%

-87.50%

Millbury

All Species

-67.48%

+33.33%

Millbury

The predominant mosquito for the week was Culex pipiens/restuans followed by Aedes vexans

 

*Low late season numbers may contribute to these comparisons being not as significant as they appear.

 

The temperature for EPI week 39 averaged approximately 8.17 degrees cooler than the previous week, with 0.65 inches of precipitation observed.  At the CMMCP historical surveillance trap sites, the overall collection numbers decreased (-67.48%) over EPI week 38.  All target species experienced reductions in population this surveillance period.  The long-term surveillance locations once again showed an overall increase when compared to the 2015 season.  Elevated levels of Aedes vexans influenced this yearly change.  Culex species are currently the most abundant target mosquito in the CMMCP service area, with Ae. vexans the second most abundant species once again.  This was the final week of mosquito surveillance for the 2016 season.  Thirty egg papers were collected from CMMCP ovitraps this week.  These produced only 14 eggs which will help gauge the presence of Aedes albopictus in central Massachusetts. No identifications of Ae. albopictus have been confirmed in 2016.

 

Enhanced Surveillance for Aedes albopictus - Ovitrap Collections

         

 

# Ovitraps

# Egg Papers

# Eggs

EPI Week #22

15

7

0

EPI Week #23

-

-

-

EPI Week #24

5

2

49

EPI Week #25

15

6

93

EPI Week #26

17

17

19

EPI Week #27

25

19

1180

EPI Week #28

25

25

1020

EPI Week #29

10

7

62

EPI Week #30

15

12

632

EPI Week #31

15

10

524

EPI Week #32

20

19

985

EPI Week #33

10

10

147

EPI Week #34

35

33

1929

EPI Week #35

30

20

263

EPI Week #36

20

20

27

EPI Week #37

30

28

896

EPI Week #38

20

20

181

EPI Week #39

30

30

14

2016 Totals

337

285

8021

 

No virus confirmations were confirmed in Epi week 38.

 

For the year we received 153% more service requests than average; 15,281 requests compared to the 13 year average of 9,962. Routine adulticiding ended Sept. 1 due to decreasing service requests from residents and declining mosquito populations, but CMMCP work crews will be ready for arbovirus interventions as needed until the season ends.

 

Standard catch basin treatments totaling 79,618 have ended in all member communities. Our tire program has come off hiatus and we have begun collecting tires. We have 2 large tire piles to remove along with local stakeholder assistance, plus numerous curbside pickups have been scheduled and/or completed. Standard ditch maintenance jobs are lined up in all districts and projects have begun in earnest; all scheduled low flow maintenance projects with the excavator have been completed by the ACOE deadline of October 1.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


Massachusetts Monthly Rainfall Graph – 2016 vs. 36 year average

CMMCP Weekly Rainfall Graph – 2016 vs. 11 year average (CMMCP/Northborough weather station)

2016 District Graphs

2016 Mosquito Collections – Submitted to MDPH

Service request history – 2016 vs. 13 year average

2016 rainfall vs. request graph

CMMCP trap locations - 2016 (.pdf)

 


What is an “Epi Week”?

Click here for the html version of the 2017 Epi Week calendar courtesy of CMMCP; includes .pdf links to our weekly surveillance reports as they become available.

Click here for the pdf version of the 2017 Epi Week calendar courtesy of Jennifer Forman-Orth of MDAR.


PRIOR REPORTS:

2016 surveillance data

2015 surveillance data

2014 surveillance data

2013 surveillance data

2012 surveillance data

2011 surveillance data

2010 surveillance data

2009 surveillance data

2008 Surveillance data

2007 Surveillance data

2006 Surveillance data


CMMCP District information – the 41 cities and towns in the CMMCP service area are broken down into 5 Districts. Each District has a Crew Leader and Field Technician assigned full time. A general description of these Districts would be: District 1 (yellow), Northeast; District 2 (blue), Northwest; District 3 (green), Central; District 4 (red), Southeast and District 5 (magenta), Southwest. Town in gray belong to other mosquito districts.