Most household insecticides will kill love bugs. Love bugs do not respond to common bug repellents, including sprays and citronella candles, because the carbon dioxide does not attract them like it does other insects.
Apply pesticide to windows and doorways in order to eliminate love bugs. It is also important to regularly mow the grass because love bugs hatch in thatch. The larvae hatch and feed in the dead and living matter that rests between the lawn and the soil. Mowing the grass helps to keep the level of thatch down, lessening the amount of love bugs that can grow on lawns. A vacuum cleaner can also be used to reduce swarms.