These flies create a buzzing sound while flying and are scavengers that feed on decaying meat or organic substances. They are transmitters of diseases and are considered to be pests.
Bottle flies are also good pollinators. They often pollinate flowers with strong odors, such as pawpaws and goldenrod. When food sources are diminished, bottle flies feed upon the nectar of these flowers in order to produce healthy eggs.
SIGNS OF a BOTTLE FLY INFESTATION :
The most common signs of bottle flies are either the adults themselves or their larvae. The adults may be seen resting on surfaces or buzzing around potential food or odor sources. The larvae may be observed when they crawl out of the breeding material to pupate.