Yellow Jacket bees
Yellow jackets are an aggressive wasp that can be dangerous because a colony/nest may swarm, stinging a person multiple times. This time of year (late summer) they are preparing for winter and are more active.
Sanitation practices can keep wasp populations at a minimum as over ripe fruit, food scraps and spilled sugary substances can attract them.
Dr Potter at UK recommends an ammonia (not bleach) and water solution as a repellent in areas where trash or food scraps may be present (approximately 6 oz of ammonia per gallon of water).
Avoidance of areas where the wasps are located may be the safest choice if insecticides are not an option.
This is a link to the publication we have on yellow jacket control and avoidance:
Feel free to contact our office if you have other questions.
Let me know if I can help you further!
Jefferson County Cooperative Extension Service
200 Juneau Drive
Louisville KY 40243