Denton County Public Health reported Thursday that a mosquito trap west of Flower Mound has tested positive for West Nile Virus. DCPH will conduct fogging three times in the area near the positive WNV mosquito trap – in and around Northwest Regional Airport – Friday through Thursday, weather permitting, according to a DCPH news release. Truck-based ultra-low volume fogging will occur between the hours of 9 p.m. and 5 a.m.