Yellowjackets are beneficial as they eat many pest species. They may sting when the nest entrance is approached, and can be aggressive, stinging several times.

Paper wasps are beneficial insects. They feed on many insect pests. However, they can and do sting when disturbed, which can be a problem if a nest is touched by someone doing pruning or fruit picking, or if there is a lot of human activity near a nest.

Mosquitoes are well-known to spread diseases such as West Nile Virus, malaria and dengue fever.

Honeybees do sting, but they only sting once. The sting can be extremely painful if the stinger is not immediately removed from the sting. Persons allergic to insect stings will have a more severe reaction.

Fleas are the most common transmitter of the rare Bubonic Plague. Their saliva can cause serious Flea Alergy Dermatitus in pets, and reported to cause similar allergic reactions in humans. Fleas can also transfer tapeworms and cause anemia in pets. Flea bites commonly cause painful, itchy red bumps.

As part of their aggressive defense of their nests, bumble bees will chase nest invaders for a considerable distance. The bumble bee sting is one of the most painful. Unlike honey bees, bumble bees can sting more than once.

Because they nest deep within the hair of animals, these ticks are not immediately apparent. Pet owners typically do not notice an infestation until populations grow considerably large and ticks are visible crawling across floors or walls.

When in an area where ticks are common, wear long sleeved shirts and pants, preferably light colored so ticks will be easy to detect. Tuck pants into socks. Use a tick repellent. Primary Transmitters of Lyme Disease.

The key to eradicating bed bugs is being familiar with the signs and dealing with the problem promptly with a professional pest control service.