Hornets are large, aggressive wasps that can become a significant nuisance when they build nests near human activity. These hornets belong to the genus Vespa and are known for their painful stings and defensive behavior. Hornets are typically larger than common wasps, with adults ranging from 1 to 1.5 inches in length. They have a robust, segmented body and are usually black and white or brown and yellow, depending on the species. Their size and coloration make them easily recognizable.

Hornets build large, paper-like nests from chewed wood fibers mixed with saliva. They are primarily carnivorous and prey on other insects, including pests, but will also feed on sugary substances. Hornets can be particularly problematic when they build nests close to human activity, as they can become aggressive if their nest is disturbed.

Hornet stings can be very painful and cause localized swelling and itching. For individuals allergic to stings, the reaction can be severe and require immediate medical attention. Due to their aggressive nature and large nests, hornets can pose a significant risk to people and pets if they are not managed properly. Effective control of pest hornets involves safely removing nests, often requiring professional pest control services to avoid the risk of stings and ensure the nest is fully eradicated.