NEW JERSEY ADULT MOSQUITO SURVEILLANCE Report September to October 8, CDC Prepared by Lisa M. Reed, Diana Carle and Dina Fonseca Center for Vector Biology This New Jersey Agricultural Experiment Station report is supported by Rutgers University, Hatch funds, funding from the NJ State Mosquito Control Commission and with the participation of the county mosquito control agencies of New Jersey. Region This Summary Table Aedes vexans Coquillettidia perturbans Aedes sollicitans Average* Increase This Average* Increase This Average* Increase This Average* Increase Agricultural........ Coastal..8..7.... Delaware Bayshore Delaware River Basin New York Metro North Central Rural Northwest Rural Philadelphia Metro.8.9.8.77......9.......8.......7..........8... <.....77..89.... Pinelands..7.7.7.... Suburban Corridor..9..... <. *Averages represent data from, at most, the previous years. Increase is a scale of current values from historical values where no difference or a decrease is represented by (blue), up to % greater difference by (green), up to % greater difference by (yellow), up to % greater difference by (orange) and greater than % increase by (red). White cells in the increase column denote increases from an historic zero and thus no value can be appropriately given. nd=no data reported. State Summary: While some floodwater species continue to be above historical average, these differences are getting smaller as the end of the season approaches and population levels overall are smaller. Aedes vexans abundances were significantly above average in the Agricultural and the New York Metropolitan regions and well above in the Delaware Bayshore. Aedes sollicitans also showed significant higher populations in the Delaware Bayshore, with increases also in the New York Metropolitan region. numbers were significantly higher in the North Central Rural with higher increases in the New York Metropolitan and the Suburban Corridor regions, and moderate increases in the Agricultural and Delaware Bayshore regions. Coquillettidia perturbans appears done for the season.
Climate Factors Average High Temperature Average Low Temperature Total Precipitation The three figures show the interpolation of average maximum ( F) and minimum temperature ( F) and total precipitation (inches) for days prior to October 8 in New Jersey. Data points are from about weather stations maintained through the New Jersey Weather & Climate Network and the State Climatologist. Interpolation between points was performed using ArcMap..
The Species Graphs: The species graph pages include a graph with two plots for each of the ten regions defined on the first page (Agricultural, Coastal, Delaware Bayshore, Delaware River, New York Metro, North-Central, Northwestern, Philadelphia Metro, Pinelands, and Suburban Corridor). Below is an example of one graph from one species within one region. The bar plot show the average number of mosquitoes per trap within the region (weekly means) and line plots show the historical trend as the average number of mosquitoes from the previous years (-year average). In general, historical data are running means from the previous years, but on occasion, will include data from fewer years. Adjustments are made to account for year discrepancies. Data for this week are from Bergen, Cumberland, Hudson, Hunterdon, Monmouth, Passaic, and Union counties. Data for the previous week are from Atlantic, Bergen, Camden, Cape May, Cumberland, Hudson, Hunterdon, Middlesex, Monmouth, Passaic, Salem, Somerset, and Union counties.
Aedes vexans - Fresh Floodwater Species Multivoltine Aedine ( Type) Agricultural Coastal Delaware Bayshore Delaware River Basin 8 8 8 8 8 8 8 8 8 8 8 8 8 New York Metro North Central Rural Northwestern Rural Philadelphia Metro 8 8 8 8 8 8 7 9 7 9 7 9 7 9 7 9 7 9 Pinelands Suburban Corridor Comments Aedes vexans is the model for fresh floodwater species. With abundant precipitation, this species can emerge in very significant numbers. Aedes vexans abundances were significantly above average in the Agricultural and the New York Metropolitan regions and well above in the Delaware Bayshore. Significant rainfall and temperature changes are expected later this week as a cold front collides with the remanents of Hurricane Michael. This is in combination with overall numbers decreasing and as various life stages are forced into diapause as temperatures and hours of daylight decrease. 8 8 8 8 8 8
Permanent Water Species Multivoltine Culex/Anopheles (Cx. pipiens Type) Agricultural Coastal Delaware Bayshore Delaware River Basin 8 8 8 8 8 8 8 8 8 8 8 8 8 8 New York Metro North Central Rural Northwestern Rural Philadelphia Metro 8 8 8 8 8 8 9 7 9 7 9 9 7 9 7 9 Pinelands Suburban Corridor Comments is composed of Culex pipiens, Cx. restuans and Cx. salinarius. These three species (especially pipiens and restuans) are often difficult to tell apart after encountering the damaging blades of the New Jersey light trap. numbers were significantly higher in the North Central Rural with higher increases in the New York Metropolitan and the Suburban Corridor regions, and moderate increases in the Agricultural and Delaware Bayshore regions. 8 8 8 8 8 8
Culiseta melanura Miscellaneous Group Unique (Cs. melanura Type) Agricultural Coastal Delaware Bayshore Delaware River Basin 8 7 8 7 9 8 7 8 8 8 8 7 8 8 8..8.... 8 8 8 New York Metro North Central Rural Northwestern Rural Philadelphia Metro..8.... 8 8 8..8.... 8 8..8.... 9 7 9 7 9......... 9 7 9 7 9 Pinelands Suburban Corridor Comments 8. Culiseta melanura is the enzootic ornithophilic vector of eastern equine 7 encephalitis. Abundances in reporting regions continue to indicate population.8 levels near historical values and decreasing as the season continues toward. ending. Southern populations may experience significant wind effects from the remnants of Hurricane Michael. 8 8 8... 8 8 8 All horse owners should make sure their horses are up to date on the vaccination schedules: http://www.aaep.org/custdocs/adultvaccinationchart.pdf
Aedes sollicitans - Salt Floodwater Species Multivoltine Aedine (Ae. sollicitans Type) Agricultural Coastal Delaware Bayshore Delaware River Basin 8 8 8 8 8 8 8 8 8 8 8 8 New York Metro North Central Rural Northwestern Rural Philadelphia Metro 8 8 8 Mean # mosquitoes ± sdp...8.... 8 8.8.... 9 7 9 7 9 9 7 9 7 9 Pinelands Suburban Corridor Comments. Aedes sollicitans is a salt floodwater species and responds to both lunar tidal patterns as well as rainfall. Aedes sollicitans showed significant higher.8 populations in the Delaware Bayshore, with increases also in the New York Metropolitan region. This was likely the last of the emergences for the. season, with population movement between interior Pineland regions and coastal habitats to continue. 8 8 8... 8 8 8
Coquillettidia perturbans Monotypic (Coquillettidia perturbans Type) Agricultural Coastal Delaware Bayshore Delaware River Basin 8 8 8 8 8 8 8 8 8 8 8 8 8 8 New York Metro North Central Rural Northwestern Rural Philadelphia Metro 8 8 8 8 8 8 9 7 9 7 9 9 7 9 7 9 Pinelands Suburban Corridor Comments Coquillettidia perturbans populations are located in cattail swamps and other wetlands with emergent vegetation, often making control of their numbers dependent on controlling water depth. Coquillettidia perturbans appears done for the season. 8 8 8 8 8 8
WNV EEE Top Ten Mosquito Species/Region - Ae. albopictus, Ae. japonicus (invasives); Cs. melanura or Cx. erraticus Note: In early season when fewer species are caught, graphs may show less than ten species/region or statewide. Total Number of Mosquitoes Caught in NJ Light Traps Ae. sollicitans An. bradleyi Cs. melanura Ae. cantator An. punctipennis An. crucians An. walkeri Cx. erraticus Ae. canadensis Ae. cinereus Ae. taeniorhynchus Ae. sticticus Ps. ferox Ae. stimulans Ps. ciliata Ae. japonicus Ae. albopictus Cx. territans Ae. trivittatus Ae. grossbecki Ae. triseriatus Cs. inornata Ps. howardii Or. signifera Ae. abserratus Ae. atlanticus Ae. fitchii Ps. con Ae. excrucians
Agricultural Ae. sollicitans An. bradleyi Ae. cantator Cs. melanura Ae. taeniorhynchus 9 Coastal Total # mosquitoe s Ae. sollicitans An. bradleyi Ae. cantator Cs. melanura Ae. taeniorhynchus 9
Delaware Bayshore Ae. sollicitans An. bradleyi Ae. cantator Cs. melanura 8 Delaware River Basin Total # mosquitoe s Ae. cantator An. bradleyi Ae. sollicitans Cx. erraticus 9
New York Metropolitan Ae. cantator Ae. sollicitans Ae. canadensis An. punctipennis Ae. albopictus 8 North Central Rural An. punctipennis Ae. stimulans Ae. canadensis Ae. cinereus Cx. territans 8
Northwest Rural An. walkeri Ae. cinereus Ae. stimulans An. punctipennis Ae. sticticus Ae. trivittatus 8 Philadelphia Metropolitan An. crucians An. punctipennis Cx. erraticus Cs. melanura Ae. sticticus 8
Pinelands Cs. melanura Ae. sollicitans An. bradleyi Ps. ferox Suburban Corridor An. punctipennis An. walkeri Ps. ferox Cs. inornata