Central Mass. Mosquito Control Project

Weekly Report- 9/24/17-9/30/17

EPI Week #39

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

140

438

87

217

1150

4099

Total Specimens

572

17792

266

3476

18323

49656

No. Pools WNV +

0

0

0

0

20†

20†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex species collected in Milford on 7/27/17

†Pool of WNV+ Culex species collected in Ashland on 7/27/17

†Pool of WNV+ Culex species collected in Chelmsford on 8/1/17

†Pool of WNV+ Culex species collected in Millbury on 8/4/17

†Pool of WNV+ Culex species collected in Webster on 8/8/17

†Pool of WNV+ Culex species collected in Sturbridge on 8/8/17

†Pool of WNV+ Culex species collected in Millbury on 8/11/17

†Pool of WNV+ Culex species collected in Billerica on 8/15/17

†Pool of WNV+ Culex species collected in Milford on 8/17/17

†Pool of WNV+ Culex species collected in Fitchburg on 8/22/17

†Pool of WNV+ Culex species collected in Leominster on 8/22/17

†Pool of WNV+ Culex species collected in Dracut on 8/25/17

†Pool of WNV+ Culex species collected in Acton on 8/31/17

†Pool of WNV+ Culex species collected in Natick on 8/31/17

†Pool of WNV+ Culex species collected in Billerica on 9/6/17

†Pool of WNV+ Culex species collected in Chelmsford on 9/6/17

†Pool of WNV+ Culex species collected in Stow on 9/13/17

†Pool of WNV+ Culex species collected in Lancaster on 9/14/17

†Pool of WNV+ Culex species collected in Ayer on 9/15/17

†Pool of WNV+ Culex species collected in Devens on 9/15/17

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 66.24°F with a recorded high temperature of 89.40°F and a recorded low temperature of only 43.10°F.  For this week there was also a total of 0.04 inches of rain observed.  Compared to the previous week, it was approximately 0.40°F cooler on average, and rained about 0.13 inches less.  There has been 2.06 inches of rain accumulated in September, after 1.15 inches for the month of August.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+21.13%

-55.10%

Gardner

Coquillettidia perturbans

-62.14%

-64.42%

Gardner

Culiseta melanura

-70.59%

-58.51%

Holliston, Northbridge

Ochlerotatus canadensis

-63.64%

-33.38%

Gardner, Hopedale

Culex Species

-44.71%

+40.21%

Lancaster, Milford

All Species

-31.66%

-37.02%

Gardner

The predominant mosquito for the week was Culex spp. followed by Oc. japonicus

 

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

 

Epi week #38 narrative: The temperatures for EPI week 39 averaged approximately 0.40 degrees cooler than the previous week, with only 0.04 inches of precipitation observed.  Overall collection numbers decreased by 31.66% from EPI week 38.  All target mosquito species were collected in lower numbers from the prior surveillance period, except for Aedes vexans.  To this point in the season, Culex remains the only target mosquito that has been collected in higher numbers compared to 2016.  Culex is still the most abundant mosquito in the CMMCP service area, followed this week by Ochlerotatus japonicus.  There were zero collections last week that tested positive for mosquito-borne disease.  This was the last week of adult mosquito surveillance for the 2017 season.  CMMCP ovitraps produced 421 eggs for Aedes albopictus surveillance.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 9/17/17-9/23/17

EPI Week #38

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

118

421

84

215

1089

3853

Total Specimens

474

17753

261

3472

18130

49059

No. Pools WNV +

0

0

0

0

20†

20†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex species collected in Milford on 7/27/17

†Pool of WNV+ Culex species collected in Ashland on 7/27/17

†Pool of WNV+ Culex species collected in Chelmsford on 8/1/17

†Pool of WNV+ Culex species collected in Millbury on 8/4/17

†Pool of WNV+ Culex species collected in Webster on 8/8/17

†Pool of WNV+ Culex species collected in Sturbridge on 8/8/17

†Pool of WNV+ Culex species collected in Millbury on 8/11/17

†Pool of WNV+ Culex species collected in Billerica on 8/15/17

†Pool of WNV+ Culex species collected in Milford on 8/17/17

†Pool of WNV+ Culex species collected in Fitchburg on 8/22/17

†Pool of WNV+ Culex species collected in Leominster on 8/22/17

†Pool of WNV+ Culex species collected in Dracut on 8/25/17

†Pool of WNV+ Culex species collected in Acton on 8/31/17

†Pool of WNV+ Culex species collected in Natick on 8/31/17

†Pool of WNV+ Culex species collected in Billerica on 9/6/17

†Pool of WNV+ Culex species collected in Chelmsford on 9/6/17

†Pool of WNV+ Culex species collected in Stow on 9/13/17

†Pool of WNV+ Culex species collected in Lancaster on 9/14/17

†Pool of WNV+ Culex species collected in Ayer on 9/15/17

†Pool of WNV+ Culex species collected in Devens on 9/15/17

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 66.64°F with a recorded high temperature of 84.00°F and a recorded low temperature of only 59.90°F.  For this week there was also a total of 0.17 inches of rain observed.  Compared to the previous week, it was approximately 0.36°F cooler on average, and rained about 0.12 inches more.  There has been 2.02 inches of rain accumulated in September, after 1.15 inches for the month of August.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+153.6%

-60.78%

                  Ayer, Chelmsford

Coquillettidia perturbans

-52.53%

-64.50%

Stow, Holliston, Westford

Culiseta melanura

-59.52%

-59.38%

Webster

Ochlerotatus canadensis

-57.69%

-33.45%

Gardner, Hopedale

Culex Species

-46.46%

+39.57%

Ayer, Natick

All Species

-37.02%

-37.61%

Ayer, Natick, Stow

The predominant mosquito for the week was Culex spp. followed by Cq. perturbans

 

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

 

Epi week #38 narrative: The temperatures for EPI week 38 averaged approximately 0.36 degrees cooler than the previous week, with only 0.17 inches of precipitation observed.  Overall collection numbers decreased by 37.02% from EPI week 37.  All target mosquito species were collected in lower numbers from the prior surveillance period, except for Aedes vexans.  To this point in the season, Culex remains the only target mosquito that has been collected in higher numbers compared to 2016.  Culex is still the most abundant mosquito in the CMMCP service area, followed again by Coquillettidia perturbans.  Four additional mosquito pools collected in EPI week 37 were determined to be WNV positive.  These collections were all Culex mosquitoes, sourced from Ayer, Devens, Lancaster, and Stow.  It was the first WNV positive collection for each of these towns this season.  There were 103 eggs collected from CMMCP ovitraps for Aedes albopictus surveillance.

 

For the year, we received 175% more service requests than the 14 year average (16,108 in 2017 v. 9,185 14 yr. avg.), and 5.4% more than 2016 (16,108 in 2017 v. 15,281 in 2016). The standard adulticiding program has ended due to lower nighttime temperatures, declining mosquito populations and fewer service requests.  Vector spraying was done September 21 after consultation with the LBOH in Ayer, Devens, Lancaster & Stow after confirmation of WNV in Culex. Monitoring continues at the sites where Ae. albopictus was identified.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 9/10/17-9/16/17

EPI Week #37

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

97

400

79

210

1041

3623

Total Specimens

389

17648

244

3462

17757

48127

No. Pools WNV +

0

0

0

0

16†

16†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex species collected in Milford on 7/27/17

†Pool of WNV+ Culex species collected in Ashland on 7/27/17

†Pool of WNV+ Culex species collected in Chelmsford on 8/1/17

†Pool of WNV+ Culex species collected in Millbury on 8/4/17

†Pool of WNV+ Culex species collected in Webster on 8/8/17

†Pool of WNV+ Culex species collected in Sturbridge on 8/8/17

†Pool of WNV+ Culex species collected in Millbury on 8/11/17

†Pool of WNV+ Culex species collected in Billerica on 8/15/17

†Pool of WNV+ Culex species collected in Milford on 8/17/17

†Pool of WNV+ Culex species collected in Fitchburg on 8/22/17

†Pool of WNV+ Culex species collected in Leominster on 8/22/17

†Pool of WNV+ Culex species collected in Dracut on 8/25/17

†Pool of WNV+ Culex species collected in Acton on 8/31/17

†Pool of WNV+ Culex species collected in Natick on 8/31/17

†Pool of WNV+ Culex species collected in Billerica on 9/6/17

†Pool of WNV+ Culex species collected in Chelmsford on 9/6/17

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 67.00°F with a recorded high temperature of 84.80°F and a recorded low temperature of only 44.60°F.  For this week there was also a total of 0.05 inches of rain observed.  Compared to the previous week, it was approximately 3.64°F warmer on average, and rained about 1.75 inches less.  There has been 1.85 inches of rain accumulated in September, after 1.15 inches for the month of August.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+55.56%

-63.21%

Littleton, Ayer

Coquillettidia perturbans

+250.0%

-64.70%

Littleton, Millbury

Culiseta melanura

+1300%

-62.13%

Ashland, Fitchburg, Hopkinton

Ochlerotatus canadensis

+73.33%

-33.64%

Millbury, Acton

Culex Species

+113.1%

+39.53%

Littleton, Chelmsford

All Species

+64.01%

-38.25%

Littleton

The predominant mosquito for the week was Culex spp. followed by Cq. perturbans

 

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

 

Epi week 37 narrative: The temperatures for EPI week 37 averaged approximately 3.64 degrees warmer than the previous week, with only 0.05 inches of precipitation observed.  Overall collection numbers increased by 64.01% from EPI week 36.  All target mosquito species were collected in higher numbers from the prior surveillance period, likely due in part to the elevated temperatures.  To this point in the season, Culex remains the only target mosquito that has been collected in higher numbers compared to 2016.  Culex is still the most abundant mosquito in the CMMCP service area, followed this week by Coquillettidia perturbans.  Two additional mosquito pools collected in EPI week 36 were determined to be WNV positive.  These collections were all Culex mosquitoes, sourced from the towns of Billerica and Chelmsford.  It was the second WNV positive collections for each of these towns this season. 

 

For the year, we received 175% more service requests than the 14 year average (16,108 in 2017 v. 9,185 14 yr. avg.), and 5.4% more than 2016 (16,108 in 2017 v. 15,281 in 2016). The standard adulticiding program has ended due to lower nighttime temperatures, declining mosquito populations and fewer service requests.  Vector spraying was done September 13 after consultation with the LBOH in Billerica and Chelmsford after confirmation of WNV in Culex. Monitoring continues at the sites where Ae. albopictus was identified.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 9/3/17-9/9/17

EPI Week #36

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

80

371

68

200

970

3363

Total Specimens

350

17431

199

3435

17104

46772

No. Pools WNV +

0

0

0

0

14†

14†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex species collected in Milford on 7/27/17

†Pool of WNV+ Culex species collected in Ashland on 7/27/17

†Pool of WNV+ Culex species collected in Chelmsford on 8/1/17

†Pool of WNV+ Culex species collected in Millbury on 8/4/17

†Pool of WNV+ Culex species collected in Webster on 8/8/17

†Pool of WNV+ Culex species collected in Sturbridge on 8/8/17

†Pool of WNV+ Culex species collected in Millbury on 8/11/17

†Pool of WNV+ Culex species collected in Billerica on 8/15/17

†Pool of WNV+ Culex species collected in Milford on 8/17/17

†Pool of WNV+ Culex species collected in Fitchburg on 8/22/17

†Pool of WNV+ Culex species collected in Leominster on 8/22/17

†Pool of WNV+ Culex species collected in Dracut on 8/25/17

†Pool of WNV+ Culex species collected in Acton on 8/31/17

†Pool of WNV+ Culex species collected in Natick on 8/31/17

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 63.36°F with a recorded high temperature of 87.40°F and a recorded low temperature of only 48.90°F.  For this week there was also a total of 1.80 inches of rain observed.  Compared to the previous week, it was approximately 3.45°F warmer on average, and rained about 1.77 inches more.  There has been 1.80 inches of rain accumulated in September, after 1.15 inches for the month of August.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+50.00%

-52.62%

Ayer, Hopedale

Coquillettidia perturbans

+00.00%

-65.25%

Westborough, Hopedale, Devens

Culiseta melanura

+200.0%

-69.24%

Gardner

Ochlerotatus canadensis

+00.00%

-34.51%

Hopedale

Culex Species

-43.67%

+40.05%

Chelmsford, Lowell

All Species

-13.58%

-39.29%

Hopedale, Chelmsford

The predominant mosquito for the week was Culex spp. followed by Oc. japonicus

 

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

 

Epi week 36 narrative: The temperatures for EPI week 36 averaged approximately 3.45 degrees warmer than the previous week, with 1.80 inches of precipitation observed.  Overall collection numbers decreased by 13.58% from EPI week 35.  The only target mosquito that were collected in lower numbers from the prior surveillance period was Culex.  To this point in the season, Culex remains the only target mosquito that has been collected in higher numbers compared to 2016.  Culex is still the most abundant mosquito in the CMMCP service area, followed by Ochlerotatus japonicus this week.  Two additional mosquito pools collected in EPI week 35 were determined to be WNV positive.  These collections were all Culex mosquitoes, sourced from the towns of Acton and Natick.  EPI week 36 also saw CMMCP ovitraps produce 163 mosquito eggs, which will be used for Aedes albopictus surveillance.

 

For the year, we received 175% more service requests than the 14 year average (16,108 in 2017 v. 9,185 14 yr. avg.), and 5.4% more than 2016 (16,108 in 2017 v. 15,281 in 2016). The standard adulticiding program has ended due to lower nighttime temperatures, declining mosquito populations and fewer service requests.  Vector spraying was done September 7 after consultation with the LBOH in Acton and Natick after confirmation of WNV in Culex. Monitoring continues at the sites where Ae. albopictus was identified.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 8/27/17-9/2/17

EPI Week #35

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

76

356

67

197

921

3233

Total Specimens

333

17369

196

3421

16808

47604

No. Pools WNV +

0

0

0

0

12†

12†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex species collected in Milford on 7/27/17

†Pool of WNV+ Culex species collected in Ashland on 7/27/17

†Pool of WNV+ Culex species collected in Chelmsford on 8/1/17

†Pool of WNV+ Culex species collected in Millbury on 8/4/17

†Pool of WNV+ Culex species collected in Webster on 8/8/17

†Pool of WNV+ Culex species collected in Sturbridge on 8/8/17

†Pool of WNV+ Culex species collected in Millbury on 8/11/17

†Pool of WNV+ Culex species collected in Billerica on 8/15/17

†Pool of WNV+ Culex species collected in Milford on 8/17/17

†Pool of WNV+ Culex species collected in Fitchburg on 8/22/17

†Pool of WNV+ Culex species collected in Leominster on 8/22/17

†Pool of WNV+ Culex species collected in Dracut on 8/25/17

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 59.91°F with a recorded high temperature of 77.20°F and a recorded low temperature of only 40.70°F.  For this week there was also a total of 0.03 inches of rain observed.  Compared to the previous week, it was approximately 9.18°F cooler on average, and rained about 0.29 inches less.  There has been 1.15 inches of rain accumulated in August, after 2.04 inches for the month of July.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+83.33%

-48.37%

Holliston, Natick

Coquillettidia perturbans

+00.00%

-65.22%

Ayer

Culiseta melanura

-90.91%

-69.56%

Marlborough

Ochlerotatus canadensis

-100.0%

-34.52%

N/A

Culex Species

-42.75%

+42.97%

Webster, Milford

All Species

-32.27%

-39.77%

Webster, Milford, Fitchburg

The predominant mosquito for the week was Culex spp. followed by Oc. triseriatus

 

Epi week #35 narrative:

 

The temperatures for EPI week 35 averaged approximately 9.18 degrees cooler than the previous week, with only 0.03 inches of precipitation observed.  Overall collection numbers decreased by 32.27% from EPI week 34.  All target mosquitoes were collected in equal or lower numbers from the prior surveillance period except Aedes vexans.  To this point in the season, Culex is the only target mosquito that has been collected in higher numbers compared to 2016.  Culex has remained the most abundant mosquito in the CMMCP service area, followed by Ochlerotatus triseriatus this week.  Three additional mosquito pools collected in EPI week 34 were determined to be WNV positive.  These collections were all Culex mosquitoes, sourced from the towns of Dracut, Fitchburg, and Leominster.  Surveillance has increased in these areas of mosquito-borne disease. 

 

We received 175% more service requests than the 14 year average (16,108 in 2017 v. 9,185 14 yr. avg.), and 5.4% more than 2016 (16,108 in 2017 v. 15,281 in 2016). Service requests decreased 170% from Epi week 34. 155 service requests were received and 445 requests were performed in Epi week 34 with favorable weather conditions. Vector spraying was done August 31 after consultation with the LBOH in Dracut, Fitchburg & Leominster after confirmation of WNV in Culex. Monitoring continues at the sites where Ae. albopictus was identified.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 8/20/17-8/26/17

EPI Week #34

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

65

355

66

196

844

2965

Total Specimens

320

17368

195

3420

16265

45038

No. Pools WNV +

0

0

0

0

9†

9†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex species collected in Milford on 7/27/17

†Pool of WNV+ Culex species collected in Ashland on 7/27/17

†Pool of WNV+ Culex species collected in Chelmsford on 8/1/17

†Pool of WNV+ Culex species collected in Millbury on 8/4/17

†Pool of WNV+ Culex species collected in Webster on 8/8/17

†Pool of WNV+ Culex species collected in Sturbridge on 8/8/17

†Pool of WNV+ Culex species collected in Millbury on 8/11/17

†Pool of WNV+ Culex species collected in Billerica on 8/15/17

†Pool of WNV+ Culex species collected in Milford on 8/17/17

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 69.09°F with a recorded high temperature of 90.10°F and a recorded low temperature of only 47.10°F.  For this week there was also a total of 0.32 inches of rain observed.  Compared to the previous week, it was approximately 2.12°F cooler on average, and rained about 0.27 inches more.  There has been 1.12 inches of rain accumulated in August, after 2.04 inches for the month of July.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

-86.00%

-7.88%

Hudson, Millville

Coquillettidia perturbans

-44.96%

-65.01%

Sturbridge, Holliston, Hopedale

Culiseta melanura

+43.33%

-69.68%

Holliston, Millville

Ochlerotatus canadensis

+16.18%

-34.53%

Millville, Hopedale

Culex Species

+39.49%

+50.22%

Wilmington, Sturbridge

All Species

-13.50%

-39.64%

Sturbridge, Wilmington

The predominant mosquito for the week was Culex spp. followed by Cq. perturbans

 

Epi week #34 narrative:

 

The temperatures for EPI week 34 averaged approximately 2.12 degrees cooler than the previous week, with only 0.32 inches of precipitation observed.  Overall collection numbers decreased by 13.50% from EPI week 33.  Despite the general decrease in mosquito population, the only target mosquitoes collected in lower numbers from the prior surveillance period were Aedes vexans and Coquillettidia perturbans.  To this point in the season, Culex is the only target mosquito that has been collected in higher numbers compared to 2016.  Culex has now become the most abundant mosquito in the CMMCP service area followed by Cq. perturbans, which should continue to decrease moving forward.  Two additional mosquito pools collected in EPI week 33 were determined to be WNV positive.  These two collections were both Culex mosquitoes, sourced from the towns of Billerica and Milford.  Milford had a previous WNV positive collection in EPI week 30, but it was from a different trap site.  Recent ovitrap collections from Lowell produced three individual Aedes albopictus eggs.

 

We have received 179% more service requests than the 14 year average (15,953 in 2017 v. 8,928 14 yr. avg.), and 3.7% more than this time in 2016 (15,580 in 2017 v. 15,020 in 2016). Service requests decreased 38% from Epi week 33. 373 service requests were received and 603 requests were performed in Epi week 34 with favorable weather conditions. Vector spraying was done after consultation with the LBOH in Billerica & Milford after confirmation of WNV in Culex. Monitoring continues at the sites where Ae. albopictus was identified.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 8/13/17-8/19/17

EPI Week #33

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

59

342

54

191

753

2687

Total Specimens

307

16090

152

3342

14774

42618

No. Pools WNV +

0

0

0

0

7†

7†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex species collected in Milford on 7/27/17

†Pool of WNV+ Culex species collected in Ashland on 7/27/17

†Pool of WNV+ Culex species collected in Chelmsford on 8/1/17

†Pool of WNV+ Culex species collected in Millbury on 8/4/17

†Pool of WNV+ Culex species collected in Webster on 8/8/17

†Pool of WNV+ Culex species collected in Sturbridge on 8/8/17

†Pool of WNV+ Culex species collected in Millbury on 8/11/17

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 71.21°F with a recorded high temperature of 88.70°F and a recorded low temperature of only 52.00°F.  For this week there was also a total of 0.05 inches of rain observed.  Compared to the previous week, it was approximately 2.30°F warmer on average, and rained about 0.07 inches less.  There has been 0.80 inches of rain accumulated in August, after 2.04 inches for the month of July.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+36.99%

+60.22%

Westford, Stow, Milford

Coquillettidia perturbans

-13.94%

-67.28%

Devens, Hopkinton

Culiseta melanura

+15.38%

-77.18%

Stow

Ochlerotatus canadensis

-75.89%

-36.17%

Sturbridge, Acton, Westford

Culex Species

-60.09%

+57.85%

Shrewsbury, Gardner

All Species

-38.63%

-42.90%

Devens, Hopkinton

The predominant mosquito for the week was Cq. perturbans followed by Culex spp.

 

Epi week #33 narrative:

 

The temperatures for EPI week 33 averaged approximately 2.30 degrees warmer than the previous week, with only 0.05 inches of precipitation observed.  Overall collection numbers decreased by 38.63% from EPI week 32.  The only target mosquitoes to increase from the prior collection period were Aedes vexans and Culiseta melanura.  To this point in the season, all target species have been collected in lower numbers compared to 2016 aside from Ae. vexans and Culex.  This week Coquillettidia perturbans was the most abundant mosquito in the CMMCP service area followed by Culex, although it is predicted that Cq. perturbans will continue to decrease as the season progresses.  Three additional mosquito pools collected in EPI week 32 were determined to be WNV positive.  These collections were all Culex mosquitoes from the towns of Webster, Sturbridge, and Millbury, which also had a WNV positive collection in EPI week 31, albeit from a different trap site.

 

We have received 181% more service requests than the 14 year average (15,580 in 2017 v. 8,588 14 yr. avg.), and 6.3% more than this time in 2016 (15,580 in 2017 v. 14,646 in 2016). Service requests decreased 4.27% from Epi week 32. 518 service requests were received and 432 requests were performed in Epi week 33 with favorable weather conditions. Wide area spraying was done after consultation with the LBOH in Auburn due to concerns about WNV spillover from the city of Worcester. Vector spraying was done in Millbury, Sturbridge and Webster after confirmation of WNV in Culex and coordination with local health officials. Monitoring continues at the site where Ae. albopictus was identified.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 8/6/17-8/12/17

EPI Week #32

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

48

296

45

182

671

2396

Total Specimens

206

13762

122

3274

13681

38343

No. Pools WNV +

0

0

0

0

4†

4†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex species collected in Milford on 7/27/17

†Pool of WNV+ Culex species collected in Ashland on 7/27/17

†Pool of WNV+ Culex species collected in Chelmsford on 8/1/17

†Pool of WNV+ Culex species collected in Millbury on 8/4/17

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 68.91°F with a recorded high temperature of 88.20°F and a recorded low temperature of only 54.50°F.  For this week there was also a total of 0.12 inches of rain observed.  Compared to the previous week, it was approximately 2.78°F cooler on average, and rained about 0.51 inches less.  There has been 0.75 inches of rain accumulated in August, after 2.04 inches for the month of July.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+192.0%

+100.0%

Lunenburg, Lowell, Westford

Coquillettidia perturbans

-25.08%

-71.22%

Tewksbury, Westford, Billerica

Culiseta melanura

+73.33%

-82.31%

Hopkinton, Lowell, Ayer

Ochlerotatus canadensis

+193.8%

-37.51%

Acton, Westford, Lowell

Culex Species

-22.91%

+85.44%

Westford, Webster

All Species

-13.91%

-46.20%

Westborough, Westford, Tewksbury

The predominant mosquito for the week was Cq. perturbans followed by Culex spp.

 

Epi week #32 narrative:

 

The temperatures for EPI week 32 averaged approximately 2.78 degrees cooler than the previous week, with 0.12 inches of precipitation observed.  Overall collection numbers decreased by 13.91% from EPI week 31.  The only target mosquitoes not to increase from the prior collection period were Coquillettidia perturbans and Culex.  To this point in the season, all target species have been collected in lower numbers compared to 2016 aside from Ae. vexans and Culex.  This week Cq. perturbans was the most abundant mosquito in the CMMCP service area followed by Culex.  Cq. perturbans may continue to decrease as the season progresses.  Two additional mosquito pools collected in EPI week 31 were determined to be WNV positive.  One collection was from a trap site in Chelmsford, with the other originating from Millbury.  Additionally, Aedes albopictus was detected in Ayer through mosquito eggs collected in CMMCP ovitraps. 

 

We have received 183% more service requests than the 14 year average (15,065 in 2017 v. 8,236 14 yr. avg.), and 5% more than this time in 2016 (15,065 in 2017 v. 14,340 in 2016). Service requests decreased 2.17% from Epi week 31. 537 service requests were received and 630 requests were performed in Epi week 32 with favorable weather conditions. Vector spraying was done in Chelmsford on August 9 after confirmation of WNV in Culex and coordination with local health officials.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 7/30/17-8/5/17

EPI Week #31

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

41

250

38

164

579

2099

Total Specimens

133

11064

96

2992

10960

30278

No. Pools WNV +

0

0

0

0

2†

2†

No. Pools EEE +

0

0

0

0

0

0

†Pool of WNV+ Culex species collected in Milford on 7/27/17

†Pool of WNV+ Culex species collected in Ashland on 7/27/17

 

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+150.0%

+116.7%

Westford, Littleton, Shrewsbury

Coquillettidia perturbans

+39.95%

-75.65%

Chelmsford, Tewksbury, Marlborough

Culiseta melanura

-11.76%

-86.96%

Acton, Millville, Wilmington

Ochlerotatus canadensis

+134.2%

-43.07%

Westford, Littleton

Culex Species

+36.63%

+64.60%

Westford, Chelmsford

All Species

+32.29%

-54.16%

Westford, Tewksbury, Chelmsford

The predominant mosquito for the week was Cq. perturbans followed by Culex spp.

 

Epi week #31 narrative:

 

Overall collection numbers increased by 32.29% from EPI week 30.  The only target mosquito species not to increase from the prior collection period were Culiseta melanura.  To this point in the season, all target species have been collected in lower numbers compared to 2016 aside from Aedes vexans and Culex.  This week Coquillettidia perturbans was the most abundant mosquito in the CMMCP service area followed by Culex.  It is anticipated that Cq. perturbans will remain the most abundant mosquito for EPI week 32.  Surveillance collections from the previous week resulted in the first two CMMCP mosquito pools positive for WNV, one from Ashland, the other from Milford.  Both of these pools were comprised solely of Culex mosquitoes.  Ovitraps collected by CMMCP this week produced 627 eggs for Aedes albopictus surveillance with no confirmations to date of the presence of this species.

 

We have received 185% more service requests than the 14 year average (14,528 in 2017 v. 7,864 14 yr. avg.), and 4.7% more than this time in 2016 (14,528 in 2017 v. 13,870 in 2016). Service requests increased 17.8% from Epi week 30 likely due to the news of WNV confirmations in Ashland, Milford and Worcester. 654 service requests were received and 830 requests were performed in Epi week 31 with favorable weather conditions most of the week. Additional surveillance traps have been set up in Auburn, Millbury and Shrewsbury after confirmation of WNV in Worcester. Vector spraying was done in Ashland and Milford on August 3 after confirmation of WNV in Culex and coordination with local health officials.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 7/23/17-7/29/17

EPI Week #30

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

35

197

31

156

493

1798

Total Specimens

108

7463

81

2896

7545

22560

No. Pools WNV +

0

0

0

0

0

0

No. Pools EEE +

0

0

0

0

0

0

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 65.17°F with a recorded high temperature of 83.5°F and a recorded low temperature of only 50.30°F.  For this week there was also a total of 0.94 inches of rain observed.  Compared to the previous week, it was approximately 11.49°F cooler on average, and rained about 0.91 inches more.  There has been 2.04 inches of rain accumulated in July, after 0.54 inches for the month of June.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

-9.09%

+338.1%

Ayer, Hopedale

Coquillettidia perturbans

+29.23%

-81.93%

Ayer, Littleton, Hopkinton

Culiseta melanura

+41.67%

-89.04%

Shrewsbury

Ochlerotatus canadensis

-73.55%

-44.20%

Hopedale

Culex Species

+117.7%

+28.62%

Acton, Westford

All Species

+72.80%

-63.69%

Boxborough, Westford, Ayer

The predominant mosquito for the week was Cq. perturbans followed by Culex spp.

 

Epi week #30 narrative:

 

The temperatures for EPI week 30 averaged approximately 11.49 degrees cooler than the previous week, with 0.94 inches of precipitation observed.  Overall collection numbers increased by 72.80% from EPI week 29.  The only target mosquito species not to increase from the prior collection period were Aedes vexans and Ochlerotatus canadensis.  To this point in the season, all target species have been collected in lower numbers compared to 2016 aside from Ae. vexans and Culex.  This week Coquillettidia perturbans was the most abundant mosquito in the CMMCP service area followed by Culex.  It is anticipated that Cq. perturbans will remain the most abundant mosquito for EPI week 31.  Ovitraps collected by CMMCP this week produced 326 eggs for Aedes albopictus surveillance with no confirmations to date of the presence of this species.

 

We have received 188% more service requests than the 14 year average (13,874 in 2017 v. 7,388 14 yr. avg.), and 3.3% more than this time in 2016 (13,874 in 2017 v. 13,424 in 2016). Service requests decreased 18.3% from Epi week 30 v week 29. 555 service requests were received and 1,048 requests were performed in Epi week 30 with favorable weather conditions most of the week.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 7/16/17-7/22/17

EPI Week #29

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

30

136

24

145

402

1492

Total Specimens

98

4890

64

2855

5009

16284

No. Pools WNV +

0

0

0

0

0

0

No. Pools EEE +

0

0

0

0

0

0

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 76.66°F with a recorded high temperature of 91.80°F and a recorded low temperature of only 61.20°F.  For this week there was also a total of 0.03 inches of rain observed.  Compared to the previous week, it was approximately 6.97°F warmer on average, and rained about 0.50 inches fewer.  There has been 1.10 inches of rain accumulated in July, after 0.54 inches for the month of June.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

-100.0%

+485.7%

N/A

Coquillettidia perturbans

-71.43%

-86.54%

Chelmsford, Hudson, Boxborough

Culiseta melanura

-58.33%

-92.25%

Wilmington, Lunenburg, Millbury

Ochlerotatus canadensis

-50.00%

-44.16%

Ashland

Culex Species

+33.22%

+5.08%

Ashland, Stow, Southborough

All Species

+56.54%

-70.78%

Stow, Ashland

The predominant mosquito for the week was Culex spp.

 

Epi week #29 narrative:

 

The temperatures for EPI week 29 averaged approximately 6.97 degrees warmer than the previous week, with 0.03 inches of precipitation observed.  Overall collection numbers increased by 56.54% from EPI week 28, although the only target mosquito increasing from the prior collection period was Culex.  To this point in the season, all target species have been collected in lower numbers compared to 2016 aside from Aedes vexans and Culex.  This week Culex was the most abundant mosquito in the CMMCP service area.  It is anticipated that Cq. perturbans will become the most abundant mosquito for EPI week 30.  Ovitraps collected by CMMCP this week produced 259 eggs for Aedes albopictus (ATM) surveillance – no ATM have been identified in the CMMCP service area in 2017.

 

We have received 193% more service requests than the 14 year average (13,319 in 2017 v. 6,913 14 yr. avg.), and 3.7% more than this time in 2016 (13,319 in 2017 v. 12,838 in 2016). Service requests increased 12.3% from Epi week 29 v week 28. 657 service requests were received and 1,508 requests were performed in Epi week 29 with favorable weather conditions all week.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 7/9/17-7/15/17

EPI Week #28

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

29

134

21

145

317

1319

Total Specimens

97

4882

59

2857

4143

15181

No. Pools WNV +

0

0

0

0

0

0

No. Pools EEE +

0

0

0

0

0

0

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 69.69°F with a recorded high temperature of 87.10°F and a recorded low temperature of only 56.70°F.  For this week there was also a total of 0.53 inches of rain observed.  Compared to the previous week, it was approximately 1.61°F cooler on average, and rained about 0.01 inches fewer.  There has been 1.07 inches of rain accumulated in July, after 0.54 inches for the month of June.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+57.14%

+485.7%

Billerica, Hopedale, Marlborough

Coquillettidia perturbans

+53.98%

-83.46%

Tewksbury, Sturbridge

Culiseta melanura

+140.0%

-93.03%

Marlborough

Ochlerotatus canadensis

-14.84%

-42.37%

Billerica, Tewksbury

Culex Species

+268.7%

+16.23%

Billerica, Marlborough

All Species

+63.01%

-67.54%

Tewksbury, Billerica, Marlborough

The predominant mosquito for the week was Coquillettidia perturbans followed by Culex spp.

 

Epi week 27 narrative:

 

The temperatures for EPI week 28 averaged approximately 1.61 degrees cooler than the previous week, with 0.53 inches of precipitation observed.  Overall collection numbers increased by 63.01% from EPI week 27, with all target species increasing from the prior collection with the exception of Ochlerotatus canadensis.  Compared to the 2016, all target species have been collected in lower numbers to this point in the season aside from Aedes vexans and Culex.  Coquillettidia perturbans remains the most abundant mosquito in the CMMCP service area, with Culex the second most abundant.  Cq. perturbans will likely remain the most abundant mosquito during the month of July.  Early season mosquito species continue to decline as the season moves forward. 

 

We have received 201% more service requests than the 14 year average (12,662 in 2017 v. 6,334 14 yr. avg.), and 4.4% more than this time in 2016 (12,662 in 2017 v. 12,127 in 2016). Service requests dropped 20% from Epi week 28 v week 27. 585 service requests were received and 1,818 requests were performed in Epi week 28 with favorable weather conditions all week.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 7/2/17-7/8/17

EPI Week #27

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

26

105

20

134

239

1120

Total Specimens

86

2891

47

2702

2978

11698

No. Pools WNV +

0

0

0

0

0

0

No. Pools EEE +

0

0

0

0

0

0

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 71.30°F with a recorded high temperature of 87.10°F and a recorded low temperature of only 54.80°F.  For this week there was also a total of 0.54 inches of rain observed.  Compared to the previous week, it was approximately 2.87°F warmer on average, and rained about 0.20 inches more.  There has been 0.54 inches of rain accumulated in July, after 0.54 inches for the month of June.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+250.0%

+407.1%

Leominster, Gardner

Coquillettidia perturbans

+141.2%

-88.55%

Billerica, Millville

Culiseta melanura

+400.0%

-94.93%

Hudson, Hopedale

Ochlerotatus canadensis

-19.82%

-38.37%

Leominster, Hopedale

Culex Species

-56.83%

+15.97%

Marlborough, Hopedale

All Species

+12.54%

-71.67%

Billerica

The predominant mosquito for the week was Coquillettidia perturbans followed by Culex spp.

 

Week 27 narrative:

 

The temperatures for EPI week 27 averaged approximately 2.87 degrees warmer than the previous week, with 0.54 inches of precipitation observed.  Overall collection numbers increased by 12.54% from EPI week 26, with all target species increasing from the prior collection with the exception of Ochlerotatus canadensis and Culex.  Compared to the 2016, all target species have been collected in lower numbers to this point in the season aside from Aedes vexans and Culex.  Coquillettidia perturbans is now the most abundant mosquito in the CMMCP service area, with Culex the second most abundant.  Cq. perturbans will likely remain the most abundant mosquito during the month of July.  Early season mosquito species continue to decline as the season moves forward.  

 

We have received 213% more service requests than the 14 year average (12,077 in 2017 v. 5,672 14 yr. avg.), and 4.8% more than this time in 2016 (12,077 in 2017 v. 11,513 in 2016). Service requests dropped 58% from Epi week 27 v week 26. 703 service requests were received and 1,376 requests were performed in Epi week 27 with favorable weather conditions and despite a shortened week due to the holiday.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 6/25/17-7/1/17

EPI Week #26

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

24

78

15

120

205

954

Total Specimens

79

1598

42

2520

2662

9562

No. Pools WNV +

0

0

0

0

0

0

No. Pools EEE +

0

0

0

0

0

0

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 68.43°F with a recorded high temperature of 89.20°F and a recorded low temperature of only 49.40°F.  For this week there was also a total of 0.34 inches of rain observed.  Compared to the previous week, it was approximately 6.16°F cooler on average, and rained about 0.23 inches more.  There was 0.54 inches of rain accumulated in June, after 4.68 inches for the month of May.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

-75.00%

+200.0%

Tewksbury, Hudson

Coquillettidia perturbans

+267.1%

-95.36%

Tewksbury, Westborough

Culiseta melanura

-100.0%

-100.0%

N/A

Ochlerotatus canadensis

-25.08%

-63.45%

Auburn, Hopedale

Culex Species

-12.65%

+25.34%

Auburn, Natick

All Species

+25.12%

-86.97%

Tewksbury, Auburn

The predominant mosquito for the week was Culex spp. followed by Coquillettidia perturbans.

 

Week 26 narrative:

 

The temperatures for EPI week 26 averaged approximately 6.16 degrees cooler than the previous week, with only 0.34 inches of precipitation observed.  Overall collection numbers increased by 25.12% from EPI week 25, with the only target species increasing from the prior collection period being Coquillettidia perturbans.   All other target species, Aedes vexans, Culiseta melanura, Culex, and Ochlerotatus canadensis, were collected in lower number from EPI week 25.  Culex is now the most abundant mosquito in the CMMCP service area, with Cq. perturbans remaining the second most abundant.  Cq. perturbans will likely become the most abundant mosquito during the month of July.  Early season mosquito species continue to decline as the season moves forward. 

 

We have received 227% more service requests than the 15 year average (11,374 in 2017 v. 5,005 15 yr. avg.), and 5.2% more than this time in 2016 (11,374 in 2017 v. 10,810 in 2016). Service requests dropped 25.1% from Epi week 26 v week 25. 1,111 service requests were received and 2,215 requests were performed in Epi week 26 with favorable weather conditions.

 

Early season catch basin treatments totaling 28,308 have ended in all member communities. We applied in last year’s WNV areas and continued into our urban centers. Standard in-season treatments will begin in a few weeks. Our tire program is on hiatus, but we collected 1,432 tires so far this year. Our ditch maintenance and beaver mitigation programs are also on hiatus but a few projects are planned for this summer.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 6/18/17-6/24/17

EPI Week #25

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

22

56

15

103

131

728

Total Specimens

77

1062

42

2293

1929

7664

No. Pools WNV +

0

0

0

0

0

0

No. Pools EEE +

0

0

0

0

0

0

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 74.59°F with a recorded high temperature of 90.50°F and a recorded low temperature of only 54.70°F.  For this week there was also a total of 0.11 inches of rain observed.  Compared to the previous week, it was approximately 2.59°F warmer on average, and rained about 0.05 inches more.  There has been 0.20 inches of rain accumulated in June, after 4.68 inches for the month of May.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+29.63%

+600.0%

Millbury

Coquillettidia perturbans

+820.2%

-81.80%

Lowell, Littleton

Culiseta melanura

-76.92%

-97.73%

Hopkinton, Leominster

Ochlerotatus canadensis

+120.0%

+47.53%

Lowell, Millbury

Culex Species

-7.330%

-5.810%

Berlin, Hopedale

All Species

+52.98%

-52.30%

Lowell, Millbury

The predominant mosquito for the week was Ochlerotatus canadensis followed by Coquillettidia perturbans.

 

Week 25 narrative:

 

The temperatures for EPI week 25 averaged approximately 2.59 degrees warmer than the previous week, with only 0.11 inches of precipitation observed.  Overall collection numbers increased by 52.98% from EPI week 24, with Aedes vexans, Coquillettidia perturbans, and Ochlerotatus canadensis displaying increases from the prior collection period.  Culiseta melanura and Culex were collected in lower number from EPI week 24.  Oc. canadensis is now the most abundant species in the CMMCP service area, with Cq. perturbans becoming the second most abundant.  Continued Cq. perturbans emergence should result in an overall increase of mosquitoes in the CMMCP service area.  Several early spring mosquito species have begun to decline as the season moves forward.  Aedes vexans, a floodwater species, are much higher this year than in the drought plagued 2016 season.

 

We have received 240% more service requests than the 14 year average (10,263 in 2017 v. 4,263 14 yr. avg.), and 4.8% more than this time in 2016 (10.263 in 2017 v. 9,784 in 2016). Service requests dropped 67.9% from Epi week 25 v week 24. 1,390 service requests were received and 1,812 requests were performed in Epi week 25 despite rain that cancelled some spray operations.

 

Early season catch basin treatments totaling 28,308 have ended in all member communities. We applied in last year’s WNV areas and continued into our urban centers. Standard in-season treatments will begin in a few weeks. Our tire program is on hiatus, but we collected 1,432 tires so far this year. Our ditch maintenance and beaver mitigation programs are also on hiatus but a few projects are planned for this summer.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 6/11/17-6/17/17

EPI Week #24

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

13

15

12

67

75

466

Total Specimens

42

105

39

1008

1068

3934

No. Pools WNV +

0

0

0

0

0

0

No. Pools EEE +

0

0

0

0

0

0

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 72.00°F with a recorded high temperature of 96.20°F and a recorded low temperature of only 48.90°F.  For this week there was also a total of 0.06 inches of rain observed.  Compared to the previous week, it was approximately 12.16°F warmer on average, and rained about 0.05 inches more.  There has been 0.09 inches of rain accumulated in June, after 4.68 inches for the month of May.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+ ∞

+ ∞

Gardner, Southborough

Coquillettidia perturbans

+ ∞

-94.04%

Billerica

Culiseta melanura

+1200%

+160.0%

Holliston

Ochlerotatus canadensis

+ ∞

-9.92%

Hopkinton, Boylston

Culex Species

+3250%

+6600%

Sturbridge, Hudson

All Species

+2942%

-48.80%

Hopkinton, Blackstone

The predominant mosquito for the week was Culex spp. followed by Ochlerotatus canadensis.

 

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

 

Week 24 Narrative:

 

The temperatures for EPI week 24 averaged approximately 12.16 degrees warmer than the previous week, with only 0.06 inches of precipitation observed.  Overall collection numbers were significantly higher than EPI week 23, but lower than last season for the long-term historical trap sites.  All target species experienced significant increases this week.  Culex species was the most abundant mosquito, followed by Ochlerotatus canadensis.  Coquillettidia perturbans has now been collected in the CMMCP surveillance traps and should continue to increase over the next several weeks.  Overall collections numbers should also increase because of this additional Cq. perturbans emergence.

 

We have received 259% more service requests than the 14 year average (8,873 in 2017 v. 3,427 14 yr. avg.), and 1.5% more than this time in 2016 (8,873 in 2017 v. 8,738 in 2016). The standard adulticiding program is underway but rain and cool temperatures have cancelled some spray operations.

 

Early season catch basin treatments totaling 28,308 have ended in all member communities. We applied in last year’s WNV areas and continued into our urban centers. Standard in-season treatments will begin in a few weeks. Our tire program is on hiatus, but we collected 1,432 tires so far this year. Our ditch maintenance and beaver mitigation programs are also on hiatus but a few projects are planned for this summer.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 6/4/17-6/10/17

EPI Week #23

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

4

1

8

29

19

206

Total Specimens

15

1

26

424

140

1503

No. Pools WNV +

0

0

0

0

0

0

No. Pools EEE +

0

0

0

0

0

0

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 59.84°F with a recorded high temperature of 85.70°F and a recorded low temperature of only 45.40°F.  For this week there was also a total of 0.01 inches of rain observed.  Compared to the previous week, it was approximately 1.05°F warmer on average, and rained about 0.34 inches less.  There has been 0.03 inches of rain accumulated in June, after 4.68 inches for the month of May.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

+00.00%

+00.00%

N/A

Coquillettidia perturbans

+00.00%

-100.0%

N/A

Culiseta melanura

+100.0%

-91.67%

Tewksbury, Stow

Ochlerotatus canadensis

-78.57%

-99.39%

Chelmsford, Natick

Culex Species

+100.0%

+200.0%

Hopedale, Webster

All Species

-66.44%

-96.04%

Chelmsford

The predominant mosquito for the week was Ochlerotatus canadensis followed by Ochlerotatus abserratus.

 

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

 

Week 23 Narrative:

 

The temperatures for EPI week 23 averaged approximately 1.05 degrees warmer than the previous week, with 0.01 inches of precipitation observed.  Overall collection numbers were lower than EPI week 22, and also lower than last season for the long-term historical trap sites.  Culiseta melanura and Culex spp. experienced increases this week. Ochlerotatus canadensis was the most abundant species, followed by Ochlerotatus abserratus.  Coquillettidia perturbans should begin to be collected in the CMMCP surveillance traps.  Overall collections numbers will increase with additional emergence along with the high temperatures anticipated for EPI week 24.

 

During our first 2 weeks we received 255% more service requests than the 14 year average (6,539 in 2017 v. 2,564 14 yr. avg.), but 16.3% less than this time in 2016 (6,539 in 2017 v. 7,611 in 2016). The standard adulticiding program began June 5 but weather (rain and cool temps) cancelled the first 2 night’s applications. 7 crews came in for overtime on Friday night to make up some of the backlog.

 

Early season catch basin treatments totaling 28,308 have ended in all member communities. We applied in last year’s WNV areas and continued into our urban centers. Standard in-season treatments will begin in a few weeks. Our tire program is on hiatus, but we collected 1,432 tires so far this year. Our ditch maintenance and beaver mitigation programs are also on hiatus but a few projects are planned for this summer.

 

Submitted by Frank Cornine, CMMCP Staff Biologist


 

Central Mass. Mosquito Control Project

Weekly Report- 5/28/17-6/3/17

EPI Week #22

 

 

Cumulative Surveillance Summary

Target Species

Ae. vex

Cq. per

Cs. mel

Oc. can

Culex

All Species

No. Pools

0

0

6

4

15

62

Total Specimens

0

0

24

16

132

538

No. Pools WNV +

0

0

0

0

0

0

No. Pools EEE +

0

0

0

0

0

0

 

Weather Summary (Northborough, MA):       The weather for this particular week averaged 58.79°F with a recorded high temperature of 76.70°F and a recorded low temperature of only 43.70°F.  For this week there was also a total of 0.35 inches of rain observed.  Compared to the previous week, it was approximately 2.58°F cooler on average, and rained about 1.30 inches less.  There has been 0.02 inches of rain accumulated in June, after 4.68 inches for the month of May.

 

CMMCP Mosquito Summary*-

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

                                        Last Week    Last Year

Aedes vexans

 

+00.00%

N/A

Coquillettidia perturbans

 

-100.0%

N/A

Culiseta melanura

 

+500.0%

Blackstone, Holliston

Ochlerotatus canadensis

 

-92.20%

Holliston, Tewksbury

Culex Species

 

+1000%

Hudson

All Species

 

-68.03%

Tewksbury, Hudson

The predominant mosquito for the week was Culiseta morsitans followed by Culex species.

 

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

 

Week 22 Narrative:

This was the first week of the 2017 CMMCP Mosquito Surveillance Program.  The temperatures for EPI week 22 averaged 58.79°F, which was approximately three degrees cooler than the previous week.  It also rained 0.35 inches, putting the final precipitation total for the month of May at 4.68 inches. Currently Culiseta morsitans is the predominant mosquito in the CMMCP service area, with Culex species second.  There were significant Ochlerotatus abserratus collected in the surveillance traps as well.  Increases in temperature coupled with additional emergence will likely cause surveillance collection numbers to rise as the season continues.  Specimens collected in EPI week 23 will be pooled for arbovirus testing by the MDPH. 

 

During our first week we received 270% more service requests than the 14 year average, but 44% less than this time in 2016. The standard adulticiding program will begin June 5 weather permitting.

 

Early season catch basin treatments totaling 18,613 have begun in all member communities. We started in 2016 WNV areas, continued into our urban centers, and will spread out from there. Our tire program is on hiatus, but we collected 1,432 tires so far this year.

 

Submitted by Frank Cornine, CMMCP Staff Biologist