Location: Mosquito and Fly Research Unit
2012 Annual Report
FY2011 activities at 6 sites in Mercer and Monmouth Counties, NJ ended in November 2011 when no traps had Asian Tiger mosquitoes (ATM). A 50%-60% reduction in adult ATM was achieved in the Full Intervention sites in both counties. Area-wide applications of pyriproxyfen had a significant effect on adult ATM and egg production that were, however, equivalent to Bti. The objectives for 2012 were primarily to (1) test definitively the effect of early season larvicide applications on ATM adult populations; (2) test if differences in the way ATM populations in urban and suburban New Jersey react to area-wide control reflect differences of larval production sites – specifically if Mercer County ATM populations explore more open containers while Monmouth County ATM populations explore cryptic habitats such as catch basins and rain gutter flexi-tubes; (3) produce a series of Standard Operating Procedures to be provided to other mosquito control programs interested in controlling ATM; (4) engage a series of Mosquito Control programs across the U.S. to test the strategies developed in the Area-wide ATM program.
The weather patterns in New Jersey each year of the ATM project have been considerably different and record breaking. In 2011 we had very warm weather from spring to fall, and an especially wet summer, with an unusual hurricane with record rains at the end of August (Figure 2). In 2012 we experienced an unprecedented warm winter and spring leading to exceptionally high populations of ATM in Monmouth County, as predicted by the temperature model we are developing. Also, as predicted ATM populations in inner city Trenton, very urban, have been depressed. The weather has proven to be a challenge, especially for surveillance, although it has also created unprecedented opportunities considering the consistent and large dataset we have now accumulated.