Trapping in Milwaukee began the week of 6/11/2018. Gravid traps are used for these collections, which focus on Culex mosquitoes that are the main vector of West Nile virus.
Table 1. Results of tests for the presence of West Nile virus in pooled mosquitoes. Each pool consists of at least 1 but no more than 50 Culex pipiens or Culex restuans adult females which were collected by gravid trapping at 10-20 locations in Milwaukee.
Figure 1. Gravid trap.