Experts say the wet spring New Hampshire is experiencing could lead to an increase in the number of mosquitoes.“Right now, we are just starting to see them emerging,” said Justin Adams, a mosquito surveillance exporter with Newington-based Swamp Inc.>> Download the FREE WMUR appAdams helps capture mosquitoes for disease testing with the state laboratory in Concord. He said mosquitoes lay their eggs in standing water, and this year’s heavy rain has created ideal breeding conditions, which may lead to an increase.“Many of them don't live for more than a few weeks,” Adams said. “The ones we are concerned about for disease do tend to have longer lives.”The early emergence of mosquitoes comes with a warning from health officials about how to avoid diseases such as West Nile virus and eastern equine encephalitis, which can be deadly.“There is another virus that we are worried about called Jamestown cannon virus, and back in 2017, we actually had four cases of this virus,” said Beth Daly, infectious disease control bureau chief at the state Department of Health and Human Services.DHHS said it takes times for these viruses to develop before doctors start to see cases in humans.The state starts to test mosquito samples in July, but officials said it's never too early to start prevention efforts, which begin at home.“Check any screens or doors and windows in the home to make sure there are no holes and tears to prevent mosquitoes from coming into their home,” Daly said.Adams suggested trying to stop the breeding before it starts.“Look around your yard for containers with water, anything like wheel barrows, plant pots," he said. "Those things are all great breeders,."Experts also urge people to wear insect repellent, long pants and shirts with long sleeves to prevent mosquito bites.