Yellow Jacket Wasps – Yellow Jacket wasps often become a nuisance especially from August through October, as they build up in large populations and scavenge for human food (carbonated beverages, cider, juices, ripe fruits and vegetables, candy, ice cream, fish, ham, hamburgers, hot dogs, etc.) at picnics, cookouts, outside restaurants, bakeries, campsites, fairs, sports events and other outdoor get-togethers. Many are attracted in large numbers to garbage cans and other trash receptacles. Others fly in and out of nests built around homes, buildings and areas where people live, work and play, causing fear and alarm. Although yellow jackets are considered quite beneficial to agriculture since they feed abundantly on harmful flies and caterpillars, it is their boldness (sometimes aggressiveness) and painful stinging ability that cause the most concern. Nevertheless, unless the threat of stings and nest location present a hazard, it is often best to wait for nature, with freezing temperatures in late November and December, to kill off these annual colonies. Stinging workers do not survive the winter and the same nest is not reused.