What Draws Fruit Flies to Fruit & What Damage Do They Do?

Fruit flies are attracted to slimy drains and other places with standing water.

The entire lifespan of a fruit fly is only 25 days, but in that short time, the minuscule insect can cause plenty of frustration. Fruit flies are drawn to specific conditions and are attracted to more than just fruit. Although the damage caused by fruit flies is minimal, they are still unwelcome creatures when found on your kitchen countertops.

Attraction

Fruit flies are not necessarily drawn to fruit, but to moisture and organic materials. Fruit only becomes attractive to the fly when it starts to ripen. According to the University of Kentucky's Entomology Department, fruit flies are attracted to fruits and vegetables grown in the garden but can find their way inside the home as well. The flies can be found around rotting produce that is not refrigerated like onions, bananas and potatoes. In addition to fruits and vegetables, fruit flies like drains, trash cans, recycling bins, empty bottles and cans, and mops.

Damages

Fruit flies are bothersome, but generally do not cause major damage. They can leave bacteria and other organisms on and around the foods they covet, so it is advisable to throw away any fruits or vegetables they have invaded. Fruit flies multiply rapidly which can make it difficult to contain them. In just one week, an adult fruit fly can lay as many as 500 eggs near the surface of fermented fruits or vegetables. The eggs will fully develop and hatch within eight to 10 days. Upon hatching, the babies immediately begin to feed.

Removal

The first step in getting rid of fruit flies is to take away the food source. Dispose of or refrigerate any produce left out. Clean up any old soda or juice spills as well as the insides of trash cans and recycling bins. If flies remain, insecticides and traps can be purchased. Real Simple also recommends trying a homemade trap. Take a piece of paper, tape it into a cone shape and place in a clean jar or bottle. Add a small piece of fruit and a little vinegar and leave out. Once the flies enter the cone, they will not be able to get back out.

References

• University of Kentucky: Entomology; Fruit Flies; Michael F. Potter
• Orkin: Fruit Flies, Fruit Fly Control & Identification
• Real Simple; How Do I Get Rid of Fruit Flies?
• Massachusetts Department of Environmental Protection: How to Control Fruit Flies & Fungus Gnats

Resources

• Green Harvest: Fruit Fly Organic Control Information