"Hot, dry weather can create ideal breeding conditions for biting insects. As wetlands, marshes, mangrove swamps and other naturally damp areas dry out, mosquito larvae flourish in the warm, shallow, stagnant pools of water that are left behind."
Darren Labrum, who owns Wellington Pest Management, said business was booming.
"The key for all insect survival is the night temperature, so because it hasn't really been below 10 degrees for a long, long time, the numbers have increased a lot."
Mr Labrum had noticed an increase in fleas, mosquitoes and bedbugs, which have attracted more white-tailed spiders to urban areas.
Massey University entomologist Professor Qiao Wang said aphids and crickets would also be thriving in the drought.
How to beat the biters
*Keep away from swampy, marshy areas and areas of bush and flowing water.
*Regularly drain vases, swimming pool covers, clogged gutters, and anything that collects standing water.
*Clear rotting debris from the garden, including fallen fruit.
