New Jersey State Surveillance

NEW JERSEY STATE SURVEILLANCE Weekly Report for Week 37, 9 – 15 September, 2003 Submitted by Lisa Reed and Wayne Crans Mosquito Research and Control Unit Rutgers University, New Brunswick, NJ 08901 Figure 1a: Map of ten regions selected for Figure 1b. Trap lat-long locations. Purpose: Data from 84 New Jersey light the New Jersey Surveillance Program traps contributed by county mosquito overlaid with county boarders. 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-40500-37-03 supported by Hatch funds and funding from the NJ State Mosquito Control Commission. Prepared by Lisa M. Reed and Wayne J. Crans. Summary table

Aedes vexans Culex complex Coquillettidia perturbans Ochlerotatus sollicitans

Region This Week Average* This Week Average* This Week Average* This Week Average* Agricultural 0.64 1.29 2.48 23.36 0.00 0.07 1.21

Coastal 1.94 4.71 2.40 3.54 0.05 3.49 7.33 Delaware 0.00 0.00 0.00 0.00 Bayshore Delaware 2.07 5.91 2.89 4.70 0.00 0.00 7.80 River Basin New York 1.89 1.46 4.59 3.20 0.00 0.00 0.08 Metro North 0.10 0.27 0.00 0.00 Central Rural Northwest 4.38 3.24 0.00 0.00 Rural Philadelphia 1.43 0.85 0.00 0.00 Metro Pinelands 0.84 1.81 2.83 1.65 0.03 0.06 Suburban 2.06 24.65 2.93 3.37 0.26 0.00 Corridor

 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. Agricultural

Aedes vexans Culex Mix

100.00e e s

150.00 s

s 125.00 s e 75.00 e o t o i t 100.00 i u u q q s 50.00 75.00 s o o m

m 50.00 #

25.00 #

a n 25.00 e a e M

0.00 M 0.00 16 19 22 25 28 31 34 37 40 43 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 Week Week

Coquillettidia perturbans Ochlerotatus sollicitans e e 20.00 20.00 s s

s s 16.00 e e 15.00 o o t t i i

u 12.00 u q q s

s 10.00 o o 8.00 m m

5.00 4.00 n n a a e e

M 0.00 M 0.00 16 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 Coastal

Aedes vexans Culex Mix e 100.00 e 150.00 s s

s 125.00 e 75.00 e o o t t i

i 100.00 u u q q

s 50.00 75.00 s o o m m

25.00 n n 25.00 a a e e M 0.00 M 0.00 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

Coquillettidia perturbans Ochlerotatus sollicitans e 20.00 e 150.00 s s

s 125.00 s e 15.00 e o o t t

i 100.00 i u u q q

s 10.00 75.00 s o o m m 50.00

n n 25.00 a a e e

M 0.00 M 0.00 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 Delaware Bayshore

175.00 s s e 75.00 e 150.00 o o t t i i 125.00 u u q q

s 50.00 100.00 s o o 75.00 m m

25.00 50.00 n n a a 25.00 e e M

0.00 M 0.00 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

60.00 s s e e 15.00 o

o 50.00 t t i i u u 40.00 q q s

s 10.00

o 30.00 o m m

20.00 # #

5.00 n n

a 10.00 a e e

M 0.00 M 0.00 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 Delaware River Basin

500.00 s

s 125.00 e e o o t 400.00 t i

i 100.00 u u q q

s 300.00 75.00 s o o m m

200.00 50.00

n 100.00 n 25.00 a a e e M 0.00 M 0.00 16 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

s s 16.00 e 15.00 e o o t t i i u

u 12.00 q q

s 10.00 s o o 8.00 m m

n 4.00 n a a e e M 0.00 M 0.00 16 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 New York Metro

Aedes vexans Culex Mix e 100.00 e

s 150.00 s

s 125.00 e 75.00 e o o t t i

i 100.00 u u q q

s 50.00 75.00 s o o m m

50.00 # #

s s 16.00 e e 15.00 o o t t i i u

u 12.00 q q

10.00 s s o o 8.00 m m

n 4.00 n a a e e M M 0.00 0.00 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 North Central Rural

s 125.00 e 75.00 e o o t t i

i 100.00 u u q q

s 50.00 75.00 s o o m m

25.00 n n 25.00 a a e e M 0.00 M 0.00 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

s s 16.00 e 15.00 e o o t t i i u

u 12.00 q q

s 10.00 s o o 8.00 m m

n 4.00 n a a e e M 0.00 M 0.00 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 Week Northwestern Rural

Aedes vexans Culex Mix e e 175.00 150.00 s s

150.00

s 125.00 s e e o o 125.00 t t

i 100.00 i u u 100.00 q q 75.00 s s o o 75.00 m m 50.00

50.00 # #

n n 25.00 a a 25.00 e e M M 0.00 0.00 19 21 23 25 27 29 31 33 35 37 39 41 43 19 21 23 25 27 29 31 33 35 37 39 41 43 Week Week

s s 16.00 e 15.00 e o o t t i i u

u 12.00 q q

s 10.00 s o o 8.00 m m

n 4.00 n a a e e M 0.00 M 0.00 19 21 23 25 27 29 31 33 35 37 39 41 43 19 21 23 25 27 29 31 33 35 37 39 41 43 Week Week Philadelphia Metro

Aedes vexans Culex Mix e e 100.00 150.00 s s

s 125.00 s e e 75.00 o o t t

i 100.00 i u u q q 75.00 s s 50.00 o o m m 50.00

25.00 n n 25.00 a a e e M M 0.00 0.00 19 21 23 25 27 29 31 33 35 37 39 41 43 19 21 23 25 27 29 31 33 35 37 39 41 43 Week Week

s s 16.00 e 15.00 e o o t t i i u

u 12.00 q q

s 10.00 s o o 8.00 m m

n 4.00 n a a e e M 0.00 M 0.00 19 21 23 25 27 29 31 33 35 37 39 41 43 19 21 23 25 27 29 31 33 35 37 39 41 43 Week Week Pinelands

s 125.00 e 75.00 e o o t t i

i 100.00 u u q q

s 50.00 75.00 s o o m m

25.00 n n 25.00 a a e e M 0.00 M 0.00 16 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

s s 16.00 e 15.00 e o o t t i i u

u 12.00 q q

s 10.00 s o o 8.00 m m

n 4.00 n a a e e M 0.00 M 0.00 16 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 Suburban Corridor

s 125.00 e 75.00 e o o t t i

i 100.00 u u q q

s 50.00 75.00 s o o m m

s 100.00 s 16.00 e e o o t t i i u

75.00 u 12.00 q q s s o 50.00 o 8.00 m m

25.00 n 4.00 n a a e e M 0.00 M 0.00 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 Aedes vexans Agricultural Coastal Delaware Bayshore Delaware River Basin

Aedes vexans Aedes vexans Aedes vexans Aedes vexans e e e 100.00 e 100.00 100.00 600.00 s s s s

± ± ± ±

s 500.00 s s s e e e e 75.00 75.00 75.00 o o o o t t t

t 400.00 i i i i u u u u q q q q

s 300.00 s 50.00 s 50.00

s 50.00 o o o o m m m

200.00

# 25.00 25.00

n n 25.00 n 100.00 n a a a e a e e e M

M 0.00 M 0.00 0.00 M 0.00 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 16 19 22 25 28 31 34 37 40 43 Week Week Week Week New York Metro North Central Rural Northwestern Rural Philadelphia Metro

Aedes vexans Aedes vexans Aedes vexans Aedes vexans e e e

e 175.00 100.00

100.00 100.00 s s s

± ± ±

150.00

s s s s e e

e 75.00 e

75.00 75.00 o o 125.00 o t o t i t t i i i u u u

u 100.00 q q q s q 50.00 s s s 50.00 50.00 o

o 75.00 o o m

# 25.00

# # n 25.00 25.00 n a n n

a 25.00 e a a e e e M 0.00

M 0.00 M M 0.00 0.00 19 21 23 25 27 29 31 33 35 37 39 41 43 19 21 23 25 27 29 31 33 35 37 39 41 43 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 Week Week Week Pinelands Suburban Corridor Comments

Aedes vexans Aedes vexans Ae. vexans – The last brood of Ae. vexans has all but disappeared from the State Surveillance light trap collections. Equine cases of e 100.00 e 100.00 s s

WNV, however, continue to be reported, more than likely contracted s s e e 75.00 75.00 o o t t i i from the floodwater mosquito biting populations depicted in the u u q q

s 50.00 s 50.00 o o week 33-35 graphs. Recent rains should produce at least one more m m

25.00 25.00 brood of floodwater mosquitoes. Cooler night-time temperatures, n n a a e e M M 0.00 0.00 however, may minimize the amount of day-time nuisance that is 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 generated by the late season mosquitoes. Week Week Culex Complex Agricultural Coastal Delaware Bayshore Delaware River Basin

Culex Mix Culex Mix Culex Mix Culex Mix e e

e 150.00 e s 200.00 150.00 s

150.00 s s

± 175.00 ±

s s 125.00

s 125.00 125.00 e e s

e 150.00 o e o t t o

i 100.00 i o t

i 100.00 t

100.00 125.00 u u i u q q u q

s 75.00

s 100.00 q

s 75.00 o

75.00 o s o o 75.00 m m

50.00 m #

50.00 # n #

n 25.00

a n 25.00 a n 25.00 e

a 25.00 e a e

M 0.00 e M 0.00

M 0.00

M 0.00 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 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 Week Week

New York Metro North Central Rural Northwestern Rural Philadelphia Metro

Culex Mix Culex Mix Culex Mix Culex Mix e e 150.00 e

e 150.00 s 150.00 150.00 s

125.00

125.00 s 125.00 s 125.00 s s e e e e o o

t 100.00 o t i o 100.00 i t

t 100.00 i 100.00 u i u u q u q 75.00 s q 75.00 s q

75.00 o 75.00 s o s o m o 50.00

m 50.00

50.00 #

25.00 n

25.00 a n a e

n 25.00 e 25.00 a a

M 0.00 e

e M 0.00

M 0.00

M 0.00 19 21 23 25 27 29 31 33 35 37 39 41 43 19 21 23 25 27 29 31 33 35 37 39 41 43 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 Week Pinelands Suburban Corridor Comments

Culex Mix Culex Mix Culex Complex –Culex populations have also declined in all regions of the state. The highest populations remain in the

e 150.00 e 150.00 s s

± ± 125.00 125.00 Delaware Bayshore Region, the area with the highest s s e e o o t 100.00 t 100.00 i i populations, by far all season. Delaware Bayshore Culex u u

q 75.00 q 75.00 s s

o o populations are historically Culex salinarius, a cold hardy

m 50.00 m 50.00

n 25.00 n 25.00 mosquito that host-seeks into the month of November. a a e e

M 0.00 M 0.00 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 Coquillettidia perturbans Agricultural Coastal Delaware Bayshore Delaware River Basin

Coquillettidia perturbans Coquillettidia perturbans Coquillettidia perturbans Coquillettidia perturbans e e e e 20.00

20.00 s 20.00

20.00 s s s

± ± ± ±

s s s s e e e e 15.00 15.00 15.00

15.00 o o o o t t t i t i i i u u u u q q q

q 10.00 s

s 10.00

s 10.00 o o o o m m m m

# 5.00 #

5.00 5.00

5.00 n n n n a a a e a e e e

M 0.00 M M 0.00 0.00 M 0.00 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 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

New York Metro North Central Rural Northwestern Rural Philadelphia Metro

Coquillettidia perturbans Coquillettidia perturbans Coquillettidia perturbans Coquillettidia perturbans e e e e 20.00 20.00 20.00 20.00 s s s

± ± ± ±

s s s s e e e 15.00 15.00 e 15.00 15.00 o o o o t t t i t i i i u u u u q q q q

s 10.00

s 10.00 10.00 10.00 s s o o o o m m

# # 5.00

5.00 5.00 5.00 n n n n a a a a e e e e

M 0.00 M 0.00 M 0.00 M 0.00 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 19 21 23 25 27 29 31 33 35 37 39 41 43 19 21 23 25 27 29 31 33 35 37 39 41 43 Week Week Week Week Pinelands Suburban Corridor Comments

Coquillettidia perturbans Coquillettidia perturbans Cq. perturbans – State Surveillance light trap data indicate that the minor emergence of Cq. perturbans evident in week 35 has e e 20.00 125.00 s s

all but abated. In all probability, this species is all but finished for s s 100.00 e 15.00 e o o t t i i the season. The larvae have already hatched from egg boats u u 75.00 q 10.00 q s s o o 50.00 deposited by this year’s adult populations. The onset of cold m m

n 25.00 weather will cease larval growth and the population will n a a e e

M 0.00 M 0.00 overwinter in multiple instars. 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 Ochlerotatus sollicitans Agricultural Coastal Delaware Bayshore Delaware River Basin

Ochlerotatus sollicitans Ochlerotatus sollicitans Ochlerotatus sollicitans Ochlerotatus sollicitans e e e e 70.00 20.00 20.00 150.00 s s s s

± ± ± ±

60.00 s 125.00 s s s 16.00

16.00 e e e e o o

o 50.00 o t t t t i 100.00 i i i

u u 12.00 u u 12.00 40.00 q q q q

75.00 s s s s o o 30.00 o o 8.00 8.00 m m m

m 50.00

20.00 # # #

4.00 n n

25.00 a a 10.00 a a e e e e M M 0.00 0.00 M 0.00 M 0.00 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 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 New York Metro North Central Rural Northwestern Rural Philadelphia Metro

Ochlerotatus sollicitans Ochlerotatus sollicitans Ochlerotatus sollicitans Ochlerotatus sollicitans e e e

20.00 e

s 20.00 s 20.00 20.00

s 16.00 16.00 s e e 16.00 s 16.00 e o e o t t o i i o t t i u u 12.00 i 12.00

u 12.00 q q

u 12.00 s s q q o s o 8.00 s 8.00 o o m 8.00 m

8.00 m # # m

4.00 # n

n 4.00 #

a 4.00 a n 4.00 n e e a a e M 0.00 M 0.00 e

M 0.00 18 20 22 24 26 28 30 32 34 36 38 40 42 44 M 0.00 19 21 23 25 27 29 31 33 35 37 39 41 43 20 22 24 26 28 30 32 34 36 38 40 42 44 19 21 23 25 27 29 31 33 35 37 39 41 43 Week Week Week Week Pinelands Suburban Corridor Comments Oc. sollicitans – State Surveillance light trap data indicate that Oc. Ochlerotatus sollicitans Ochlerotatus sollicitans sollicitans populations are at their lowest numbers for the 2003 season. e e 20.00 However, tidal surges from recent hurricane activity will probably produce a 20.00 s s

s s 16.00 16.00 late season brood of salt marsh mosquitoes along most of the New Jersey e e o o t t i

i coast. Weather conditions will determine if the brood moves off the marsh

u 12.00

u 12.00 q q s

s to blood feed. Many late season broods of Oc. sollicitans do not move far o o 8.00 8.00 m

# from their salt marsh habitat and cause minimal late season nuisance. The

4.00 4.00 n n a

a overall biting population usually shifts from nocturnal to diurnal biting e e

M 0.00 M 0.00 behavior. Sizeable late season broods can cause considerable nuisance 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 within a narrow band close to the salt marsh upland edge. Week Week Top Ten Species, 2003 n n o o 30000 30000 s s a a e e 25000 25000 s s

s s i i 20000 20000 h h t t

s 15000 s 15000 e e o o t t i 10000 i 10000 u u q 5000 q s

s 5000 o o m 0 m 0

l l a a t t o o T T

Agricultural Region Coastal Region n n o o 30000 30000 s s a a e e 25000 25000 s s

s s i i 20000 20000 h h t t

s s 15000 15000 e e o o t t i i 10000 10000 u u q q

5000 s 5000 s o o m m 0 0

l l a a t t o o T T

Delaware Bayshore Region Delaware River Basin Region n n o 30000 o 30000 s s a a e 25000 e 25000 s s

s s i 20000 i 20000 h h t t

s s 15000 15000 e e o o t t i i 10000 10000 u u q q 5000 s

s 5000 o o m

l l a a t t o o T T

New York Metro Region North Central Rural region n n o 30000 o 30000 s s a a e 25000 e 25000 s s

s s i 20000 i 20000 h h t t

s 15000 s 15000 e e o o t t i 10000

i 10000 u u q 5000 q s 5000 s o o

m 0 m 0

l a a t t o o T T

Northwestern Rural Region Philadelphia Region n n o o 30000 30000 s s a a e e 25000 25000 s s

s s i i 20000 20000 h h t t

s s 15000 15000 e e o o t t

i 10000 i 10000 u u q q

5000 s 5000 s o o

l l a a t t o o T T

Pinelands Region Suburban Region