NEW JERSEY STATEWIDE SURVEILLANCE
Week 22 Report for 24 May to 01 June, 2004
Submitted by Lisa Reed and Wayne Crans
Mosquito Research and Control Unit
Rutgers University, New Brunswick, NJ 08901
Purpose: Data from 84 New Jersey light
traps contributed by county mosquito control
agencies are used to calculate trends in
mosquito populations for species of
nuisance or health concerns.
Calculations are based on regional
distributions, with emphasis on mosquito
habitat and land use. Trends will allow a
statewide evaluation of changing mosquito
populations, in response to control and/or
changes in habitat.
This is New Jersey Agricultural Experiment
Station publication No. PT-08-40500-24-04
supported by Hatch funds and funding from
the NJ State Mosquito Control Commission.
Prepared by Lisa M. Reed and Wayne J.
Crans.
Figure 1a: Map of ten regions selected for
the New Jersey Surveillance Program
overlaid with county boarders.
Figure 1b. Trap lat-long locations.
Summary table
Aedes vexans
Region
Culex complex
Coquillettidia perturbans
Ochlerotatus sollicitans
This Week
Average*
This Week
Average*
This Week
Average*
This Week
Average*
Agricultural
0.38
0.49
0.29
5.98
0.05
0
0.40
0.07
Coastal
0.21
0.45
0.02
1.98
0
0
0.27
1.00
1.00
0.31
3.50
0.71
0
0
3.81
0.12
1.21
4.39
0.04
2.94
0
0
0
0.03
0.33
0.97
0.23
2.58
0
0
0
0.01
0
0
0
0.38
0
0
0
0
0.21
0.63
0
1.58
0
0.05
0
0
0
1.20
0
4.63
0
0.01
0
0
Pinelands
0.27
0.33
0.42
1.22
0.01
0.01
0
0.03
Suburban
Corridor
0.19
0.98
0.02
3.11
0
0
0
0
Delaware
Bayshore
Delaware
River Basin
New York
Metro
North
Central Rural
Northwest
Rural
Philadelphia
Metro

Complete data not yet available.
Please Note: Historical data is being entered and not yet complete. These values and graphics will change as more data is entered.
Additional Species, including Cs. melanura: Early season species - Oc. canadensis, Oc. sticticus, Oc. stimulans, and , Ae. cinereus
Please note: The dataset for the current year is incomplete as only 8 counties have submitted data.
Interpretations must proceed with caution.
Aedes vexans - Fresh Floodwater Species
Coastal
Aedes vexans
50
25
0
100
75
50
25
0
16 19 22 25 28 31 34 37 40 43
Week
75
50
25
0
Week
50
25
0
20 22 24 26 28 30 32 34 36 38 40 42 44
Aedes vexans
Mean # mosquitoes ± se
50
25
0
Northwestern Rural
100
75
50
25
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Philadelphia Metro
Aedes vexans
Aedes vexans
175
150
125
100
75
50
25
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Aedes vexans
Mean # mosquitoes ± se
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Suburban Corridor
75
0
Week
75
Week
100
25
175
150
125
100
75
50
25
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
100
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Pinelands
50
Aedes vexans
Mean # mosquitoes ± se
Mean # mosquitoes ± se
100
75
Week
North Central Rural
Aedes vexans
100
Aedes vexans
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Mean # mosquitoes ± se
New York Metro
Aedes vexans
Mean # mosquitoes ± se
75
Delaware River Basin
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Aedes vexans
100
Delaware Bayshore
Mean # mosquitoes ± se
Agricultural
Week
100
75
50
25
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Comments
Historical data show that two to three major broods of Ae. vexans can be
expected over the course of the season with multiple minor emergences
from scattered rains. Populations appear to be historically highest in the
Agricultural and Suburban Corridor regions.
Culex Complex - Multivoltine Culex Species
Coastal
100
75
50
25
0
150
125
100
75
50
25
0
150
125
100
75
50
25
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Week
Week
North Central Rural
Northwestern Rural
Culex Mix
Culex Mix
80
60
40
20
0
150
125
100
75
50
25
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Pinelands
Suburban Corridor
Culex Mix
Mean # mosquitoes ± se
Culex Mix
150
125
100
75
50
25
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
150
125
100
75
50
25
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
150
Philadelphia Metro
Culex Mix
Mean # mosquitoes ± se
100
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Culex Mix
Mean # mosquitoes ± se
200
175
150
125
100
75
50
25
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
New York Metro
Mean # mosquitoes ± se
Culex Mix
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Mean # mosquitoes ± se
125
Delaware River Basin
Culex Mix
Culex Mix
Culex Mix
150
Delaware Bayshore
Mean # mosquitoes ± se
Agricultural
125
100
75
50
25
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
150
125
100
75
50
25
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Comments
Members of the Culex Complex overwinter as mated females and do not
enter light traps until nighttime temperatures reach 60° F or higher. Adult
populations typically build in numbers as the season progresses. Highest
historical populations have been found in the Delaware Bayshore region,
and likely reflect Culex salinarius. Inland populations, such as the
Agricultural region, are usually composed of a mixture of Culex p[ipiens
and Culex resturans, with lesser numbers of Culex salinarius.
Coquillettidia perturbans - Unique Life Cycle
Coquillettidia perturbans
Mean # mosquitoes ± se
15
10
5
0
20
15
10
5
0
20
15
10
5
0
20
15
10
5
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Week
Week
Coquillettidia perturbans
Mean # mosquitoes ± se
20
15
10
5
0
20
15
10
5
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Pinelands
Coquillettidia perturbans
Coquillettidia perturbans
Mean # mosquitoes ± se
15
10
5
0
400
350
300
250
200
150
100
50
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Philadelphia Metro
Coquillettidia perturbans
Coquillettidia perturbans
20
15
10
5
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Suburban Corridor
20
Northwestern Rural
Mean # mosquitoes ± se
North Central Rural
Coquillettidia perturbans
Mean # mosquitoes ± se
Coquillettidia perturbans
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
New York Metro
Mean # mosquitoes ± se
Delaware River Basin
Coquillettidia perturbans
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Coquillettidia perturbans
20
Delaware Bayshore
Mean # mosquitoes ± se
Coastal
Mean # mosquitoes ± se
Agricultural
Week
20
15
10
5
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Comments
Coquillettidia perturbans overwinters as 2nd, 3rd, or 4th-stage larvae. This
results in distinct emergences as cohorts develop through the season.
Historical data suggests that the Delaware Bayshore region produces
abundant numbers, but a well-placed trap in the suburban corridor
reflected unusually high densities in 2003. Since the larvae typically
overwinter in the 4th stage, the June emergence is usually the largest.
Ochlerotatus sollicitans - Salt Marsh Floodwater Species
Ochlerotatus sollicitans
Mean # mosquitoes ± se
12
8
4
0
150
125
100
75
50
25
0
North Central Rural
16
12
8
4
0
20
16
12
8
4
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Pinelands
Ochlerotatus sollicitans
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Ochlerotatus sollicitans
16
12
8
4
0
75
50
25
0
20
16
12
8
4
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
20
16
12
8
4
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Northwestern Rural
Week
Philadelphia Metro
Ochlerotatus sollicitans
20
16
12
8
4
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Week
Suburban Corridor
20
100
Ochlerotatus sollicitans
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Ochlerotatus sollicitans
20
125
Week
Week
New York Metro
150
18 20 22 24 26 28 30 32 34 36 38 40 42 44
0.00 0.00 0.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Ochlerotatus sollicitans
Ochlerotatus sollicitans
Mean # mosquitoes ± se
16
Delaware River Basin
Ochlerotatus sollicitans
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Ochlerotatus sollicitans
20
Delaware Bayshore
Mean # mosquitoes ± se
Coastal
Mean # mosquitoes ± se
Agricultural
20
16
12
8
4
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Comments
Ochlerotatus sollicitans is a saltmarsh species that relies on lunar tides to
hatch eggs that are deposited on elevated marsh. Since lunar tides occur
every two weeks, light traps sample overlapping broods. Historical data
clearly reflect this trend, with largest populations occurring in the Coastal
and Bayshore regions.
Culiseta melanura - Miscellaneous Group
Agricultural
Coastal
Culiseta melanura
Culiseta melanura
Delaware River Basin
Culiseta melanura
Culiseta melanura
3
2
1
0
10
8
6
4
2
0
3
2
1
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Week
North Central Rural
Culiseta melanura
4
3
2
1
0
5
4
3
2
1
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
20
Week
Pinelands
22 24
26 28
30 32
34 36
38 40 42
44
Suburban Corridor
Culiseta melanura
Mean # mosquitoes ± se
10
8
6
4
2
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
5
4
3
2
1
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Culiseta melanura
5
4
3
2
1
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
8
6
4
2
0
Week
Philadelphia Metro
Culiseta melanura
Mean # mosquitoes ± se
Mean # mosquitoes ± se
5
Northwestern Rural
10
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Culiseta melanura
Mean # mosquitoes ± se
Culiseta melanura
Mean # mosquitoes ± se
4
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
New York Metro
Mean # mosquitoes ± se
5
Mean # mosquitoes ± se
4
Mean # mosquitoes ± se
5
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Delaware Bayshore
Week
10
8
6
4
2
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Comments
Culiseta melanura is the species that maintains the EEE cycle through its
preferred avian bloodfeeding behavior. Larval habitat is most abundant
in acidic environments, such as cedar swamps crypts. Within these
habitats, populations are expected to build and peak throughout the
season as overwintering instars develop and emerge. Early vector
surveillance with resting boxes on southern New Jersey populations
signaled a significant EEE year in 2003.
Ochlerotatus canadensis Early Season Species
5
Ochlerotatus canadensis
Mean # mosquitoes ± se
4
3
2
1
0
5
4
3
2
1
0
5
4
3
2
1
0
5
4
3
2
1
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Week
Week
Ochlerotatus canadensis
Mean # mosquitoes ± se
5
4
3
2
1
0
5
4
3
2
1
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Pinelands
Ochlerotatus canadensis
Mean # mosquitoes ± se
Ochlerotatus canadensis
8
6
4
2
0
5
4
3
2
1
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Philadelphia Metro
Ochlerotatus canadensis
Ochlerotatus canadensis
5
4
3
2
1
0
20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Suburban Corridor
10
Northwestern Rural
Mean # mosquitoes ± se
North Central Rural
Ochlerotatus canadensis
Mean # mosquitoes ± se
Ochlerotatus canadensis
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
New York Metro
Mean # mosquitoes ± se
Delaware River Basin
Ochlerotatus canadensis
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Ochlerotatus canadensis
Delaware Bayshore
Mean # mosquitoes ± se
Coastal
Mean # mosquitoes ± se
Agricultural
5
4
3
2
1
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Comments
Oc. canadensis is an early-season mosquito that may re-appear later in the
year. Historical data reflect May/June abundance with minor populations
during the month of September.
Ochlerotatus sticticus - Early Season Species
Ochlerotatus sticticus
Mean # mosquitoes ± se
5
4
3
2
1
0
5
4
3
2
1
0
5
4
3
2
1
0
5
4
3
2
1
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Week
Week
North Central Rural
Northwestern Rural
4
3
2
1
0
5
4
3
2
1
0
20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Suburban Corridor
Ochlerotatus sticticus
Ochlerotatus sticticus
Mean # mosquitoes ± se
5
4
3
2
1
0
10
8
6
4
2
0
20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Pinelands
Ochlerotatus sticticus
Ochlerotatus sticticus
Mean # mosquitoes ± se
5
5
4
3
2
1
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Philadelphia Metro
Ochlerotatus sticticus
Mean # mosquitoes ± se
Ochlerotatus sticticus
Mean # mosquitoes ± se
Ochlerotatus sticticus
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
New York Metro
Mean # mosquitoes ± se
Delaware River Basin
Ochlerotatus sticticus
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Ochlerotatus sticticus
Delaware Bayshore
Mean # mosquitoes ± se
Coastal
Mean # mosquitoes ± se
Agricultural
Week
5
4
3
2
1
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Comments
Oc. sticticus is a floodwater species with a life cycle similar to that of Oc.
canadensis . Historical data indicates a May/June emergence in most
areas followed by low numbers later in the season. This year’s dataset
shows a significant emergence in the Northwestern Rural region, well
ahead of the usual trends for this species.
Ochlerotatus stimulans - Early Season Species
Ochlerotatus stimulans
Mean # mosquitoes ± se
5
4
3
2
1
0
5
4
3
2
1
0
5
4
3
2
1
0
5
4
3
2
1
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Week
Week
Ochlerotatus stimulans
Mean # mosquitoes ± se
5
4
3
2
1
0
5
4
3
2
1
0
20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Suburban Corridor
Ochlerotatus stimulans
Mean # mosquitoes ± se
Ochlerotatus stimulans
5
4
3
2
1
0
5
4
3
2
1
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Philadelphia Metro
Ochlerotatus stimulans
5
4
3
2
1
0
20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Pinelands
Northwestern Rural
Ochlerotatus stimulans
Mean # mosquitoes ± se
North Central Rural
Ochlerotatus stimulans
Mean # mosquitoes ± se
Ochlerotatus stimulans
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
New York Metro
Mean # mosquitoes ± se
Delaware River Basin
Ochlerotatus stimulans
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Ochlerotatus stimulans
Delaware Bayshore
Mean # mosquitoes ± se
Coastal
Mean # mosquitoes ± se
Agricultural
Week
5
4
3
2
1
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Comments
Oc. stimulans is a univoltine woodland pool species with adults that
persistent well into the summer. Historical data from the Northwestern
Rural region show the typical trend. As with Oc. sticticus, this species
emerged far earlier and in large numbers in the Northwestern Rural
region than expected by indications of historical records.
Aedes cinereus - Early Season Species
Aedes cinereus
Mean # mosquitoes ± se
5
4
3
2
1
0
5
4
3
2
1
0
5
4
3
2
1
0
5
4
3
2
1
0
18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Week
Week
Aedes cinereus
Mean # mosquitoes ± se
5
4
3
2
1
0
5
4
3
2
1
0
20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Suburban Corridor
Aedes cinereus
Mean # mosquitoes ± se
Aedes cinereus
5
4
3
2
1
0
5
4
3
2
1
0
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
18 20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Philadelphia Metro
Aedes cinereus
Aedes cinereus
5
4
3
2
1
0
20 22 24 26 28 30 32 34 36 38 40 42 44
Week
Week
Pinelands
Northwestern Rural
Mean # mosquitoes ± se
North Central Rural
Aedes cinereus
Mean # mosquitoes ± se
Aedes cinereus
16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
New York Metro
Mean # mosquitoes ± se
Delaware River Basin
Aedes cinereus
Mean # mosquitoes ± se
Mean # mosquitoes ± se
Aedes cinereus
Delaware Bayshore
Mean # mosquitoes ± se
Coastal
Mean # mosquitoes ± se
Agricultural
Week
5
4
3
2
1
0
19 21 23 25 27 29 31 33 35 37 39 41 43
Week
Comments
Aedes cinereus is the third univoltine species that may re-appear later in
the season. Historical data show a spring brood (the Coastal region), a
fall brood (the Delaware Bayshore region) and the typical two
emergences in the North Central Rural, Northwestern Rural, and
Suburban Corridor regions.