As the temperature goes up and people start going outside, we want to make sure that people are aware of that fact that some mosquitoes do carry disease,’’ said Dr. Catherine Brown, state public health veterinarian. While the month’s rains may not cause a bump in mosquito numbers, the mild winter and prolonged snow cover may be factors that lead to elevated numbers as the summer progresses, Brown said.Mosquitoes testing positive for West Nile Virus have been found, so aerial spraying is set for Rindge Tract west of Stockton between 7:30 and 9:30 tonight or 5:30-7:30 a.m. Sunday to try to control adult mosquitoes.Mosquitoes can be an annoying, serious problem. They interfere with work and spoil hours of leisure time. Some are capable of transmitting diseases such as malaria, yellow fever, several different types of encephalitis, and West Nile virus to humans and animals.