 Cities around the Sioux Falls area are fighting against a surge of mosquitoes. After all the recent rain, flooding and warm weather, officials are saying it's the worst it's been in 10 years. The city has been placing full traps and also counting and testing mosquitoes individually to make sure those carrying disease are tracked. Environmental Health Manager Dominic Miller says just one of those traps had 4,600 mosquitoes in it last week.