Homeowners often find a variety of insects in their homes, especially in moist humid rooms like bathrooms. The two most common types of insects found indoors are crickets and springtails. Neither of these bugs sting or bite humans, but they can become a nuisance when present indoors in large numbers.
Moisture-loving insects such as springtails are common indoor invaders that are usually seen in bathrooms and kitchens. Other moist areas, such as the soil of over-watered houseplants and humid basements, may have an abundance of springtails. These insects measure 2mm in length, are wingless and jump when disturbed. Crickets are jumping pests that are attracted to the moisture located in kitchen and bathroom sinks. House crickets are usually 3/4 inches in length but can be much smaller. These insects can become a nuisance when they wander indoors and rub their legs together to make a loud chirping sound.
Springtails feed on algae, fungi and decaying organic matter and are only numerous in humid areas such as bathroom sinks and bathtubs. These pests may also invade the potting soil of indoor plants, especially if the soil is saturated. Springtails are harmless and do not eat fabric, stain furniture or bite humans. They move around the house by jumping or crawling. According to Iowa State University, the jumping motion is made possible by a forked tail underneath the springtail's body. Crickets are also commonly found indoors and are attracted to the moisture in bathrooms, laundry rooms and kitchens. House crickets can fly but usually move around from room to room by jumping. These insects are typically seen indoors in early spring or just before winter weather arrives.
Crickets and springtails are attracted to moisture, so eliminating sources of moisture can help reduce infestations. Placing fans and dehumidifiers in your bathroom may help reduce moisture and insects. Remove outdoor areas of concealment, such as leaf litter, compost and piles of mulch since these areas attract insects. Avoid over-watering your houseplants as this may draw springtails and crickets to the excess moisture.
Barrier insecticides may be helpful in keeping insects away from your home, and spraying barrier insecticides around the foundation and doorways may reduce insect infestations. Aerosol sprays are often effective in killing insects found inside your home. Always follow the directions on the product when using it indoors.