Brown saltmarsh mosquito primarily feeds on human blood to support egg production. It uses specialized mouthparts to pierce skin and locate capillaries, injecting saliva that may cause irritation. Bites usually result from females seeking nutrients during Adult stage, specifically before and after the Mild phase of their Feeding cycle.

Brown saltmarsh mosquito are attracted to human habitats for blood meals, which are necessary for egg production. Humans inadvertently provide brown saltmarsh mosquito with the means to reproduce by emitting body heat, carbon dioxide, and other attractants. These factors, combined with brown saltmarsh mosquito's proximity to residential areas, lead to frequent biting incidents, causing varying levels of discomfort to individuals.

Prevention methods include installing fine mesh screens on windows and doors to prevent brown saltmarsh mosquito entry, using fans to disrupt flight patterns, eliminating standing water where brown saltmarsh mosquito can breed, and wearing light-colored clothing which is less attractive to brown saltmarsh mosquito. For outdoor protection, use citronella candles or oil diffusers to deter brown saltmarsh mosquito.

After encounters with brown saltmarsh mosquito, immediate actions include washing the affected area with soap and water, applying a cold compress to reduce swelling, and using aloe vera or honey for their natural soothing properties. To minimize adverse reactions, keep the area clean, avoid scratching, and use comfort measures like cool, damp cloths. During recovery, wearing loose clothing can prevent irritation, and maintaining a clutter-free environment can discourage brown saltmarsh mosquito habitation and reduce further incidents.

Brown saltmarsh mosquito is considered a nuisance especially in its adult stage, as it engages in blood-feeding on humans. This can range from mild irritation to severe discomfort depending on individual sensitivity to bites. Their tendency to live near humans leads to frequent, unwanted encounters.