To attract black soldier fly, you can use foods that give off quite a strong smell. Rotting fish, chicken, bad eggs, old veggies are good attractants. This signals to the mother flies around your natural environment that there's good food for her babies. She'll then be naturally attracted to come.

A benefit of attracting wild BSF in your local area is that their bodies have had some time adapting to the local environment. Thus, making it easier to survive and thrive in local conditions. There are some simple steps to attract BSF in your area. Let's check them out right below.

Step 1: Preparing the attractant

Black soldier flies like the smell of smelly foods or waste. In nature, they usually gather around quite a lot near outdoor toilets or waste piles. Or especially during the season when the fishermen dry their caught fish outside.

Similarly, you can use stuff like animal guts, organs, bad fermented foods, veggies or spent grains to attract them. The bodies of dead BSF are a good attractant. It's advisable to pre-treat the foods with some enzyme or ferment them for 4-5 days before using. This helps reduce the smell that many of us can't stand quite a bit.

Alternatively, you can soak some pet kibble (dry dog food) for one day then use it as an attractant. There's something in the smell of this foodstuff that helps attract the BSF. Coffee grounds are also a possible choice. It works relatively better than brewery waste for this purpose.

If you place the attractant outdoors, the smell may not last as long as the indoor cage surrounded by some wire or mesh. To make the attractant smell last for longer, put in some fish fins or again the dead black soldier fly bodies. That'll be really appealing and can attract the flies effectively.

After we've prepared the attractant, we can move on to:

Step 2: Making the egg collectors

Black soldier flies usually like to lay eggs in the crevices of wood. This helps keep their eggs protected from other predators & keep them from drying out. To make the egg nests or collectors, you can use cardboard pieces, wood stacks, aquarium bio-balls or the craft wood sticks (or tongue depressors).

The good thing about using wood pieces is that you can re-use them as many times as you like for a long time. When it's time to collect the eggs, you can just take the whole stack and place it over the feeding bed prepared for the young hatchlings.

After you've made the stacks, place them adjacent to the food source you've prepared. BSF will lay eggs adjacent to the food source & not directly on it. So this is a good location to place your egg collectors.

Between each piece of wood stacked together, leave about 0.8-1 mm. If you have a steady stream of eggs to collect each day, it's good to color-code the stacks with some colored ties–each for one day of the week.

Finally, our last step can be:

Step 3: Place the attractant + egg collectors outside

If you place your attractant box outside, make sure the environment around it is quite clear. Meaning there's no trees with holes or little gaps in the trunk around. These might distract the mother flies. She may lay the eggs there & not directly into your prepared stacks.

BSF coming

Depending on your local region, the result may or may not be as expected. If there are BSF living around the area, then this may give you some good result. It is a fun experiment however. But do look out for houseflies, ants or other insects eyeing the foods. With that said, hope these steps have given you some quick ideas to get started. Good luck & have a good hunt.

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