Food, fly bait for your fly trap.
Of the many species of fly’s in and around homes and barns you will most generally be faced with one or more of the most common three fly pest.
Feeding Habits of Flies
Adult flies feed and harvest their larvae on organic decaying material. This includes, fruit, vegetables, meat, animal, plant secretions and human feces. Both male and female flies suck nectar from flowers as well.
Flies are most active when it is warm, for this is when their larvae are most likely to hatch. They are attracted to buildings because of the heat and odors they may emit.
What Do Common House Flies Eat?
House flies are general feeders, which mean they will eat everything from food to animal and human fecal matter. Because of their sponging mouths, they only feed on liquids, which means they must liquefy food through regurgitation. They are attracted to a variety of substances such as:
Overripe fruit and vegetables
What Do Fruit Flies Eat?
Fruit Flies are attracted to fermented food and liquid sources, which is why they are so common in homes and the food industry. Fruit flies search for foods such as:
Liquids: beer, wine, cider, vinegar
Fruits such as bananas, grapes, peaches, pineapples, tomatoes, mustard pickles, potatoes, onions, etc.
Sugary substances, like candy
What Do Blow (Bottle) Flies Eat?
Blow/bottle flies are fairly large flies with metallic blue, green, bronze or black sheen. They are infamously known for burrowing themselves into their food, which is where they develop. They are usually the first insects to arrive after an animal dies. These flies prefer:
Fresh or decaying meat
Traps can be baited with molasses, sugar, fruit, meat and/or rotting shrimp.
Bait and water mixture should be within 2 inches of the trap funnel opening. To make the liquid more effective in killing fly’s add a few drops of dish soap and a small amount of apple cider vinegar to your trap water.
Fly bait stinks so keep in mind you want to attract fly’s away from your home. Place your traps 50 to 100 feet distance from your home.
DIY – Fly Trap This link presents several pictures and hints on building your first DIY fly trap.