Complex sentence: Pest control is mostly unneeded as they nest in areas with little to no vegetation, usually ignore people, and females are not aggressive, tending to save their venom for their cicada prey, but will sting if they come under threat.
Split into simpler sentences: Pest control is mostly unneeded due to the fact that they nest in areas with little to no vegetation. They usually ignore people, and are not aggressive, tending to save their venom for their cicada prey, but will sting if they come under threat.