April 21, 2016 5:55 pm Residents Express Concerns Over Mosquito Spraying Orange County residents say they want officials to control the mosquito population using nontoxic options. Angie Crouch reports for the NBC4 News at 5 and 6 p.m. on April 21, 2016. US & World Videos 0:45 Car crashes forces vehicle to slam into Leimert Park home 3:14 LAPD officers return to USC amid pro-Palestinian protest 2:42 USC students share thoughts on cancelation of main commencement 1:32 Two police shootings in Long Beach leave at least one dead 3:34 Pro-Palestinian encampments continue on UCLA campus