BSF Innovation: NZ BSF Farm Wonosobo

If a fly landed on your lunch and flew away, would you still eat it? Any fly probably not… The Black Soldier Fly, why not?

Ecotica received a warm welcome at NZ BSF Farm Wonosobo.
 
The great time we had visiting Mr Hardi and his team made us forget the long motorbike trip on mountain roads we just had.
NZ BSF Farm Wonosobo is a great example of an integrated farming system on a small plot of land. Catfishes and tilapias are the first things you see when you come in. Then you hear the chickens, known locally as ayam Joper. They are the result of crossing a local male rooster with a brown laying hen. Then you notice the love cage, where Black Soldier Flies mate.

The Black Soldier Fly or BSF (Hermetia illucens) is often praised as a very efficient way to manage organic waste. A short lifecycle combined with a voracious appetite and a strong immune system make it a great ally. It’s worth mentioning that its adult stage is very different from the common housefly, it lives a short adult life devoted to mating and laying eggs. During that time the fly only drinks and do not eat. It also does not regurgitate enzymes and pathogens unlike houseflies (Musca domestica) which make it a safe partner for humans to work with.

Mr Hardi showed us his operation and explained how BSF helped him keep operational costs down. Out of necessity, he came up with a brilliant design for integrating chickens and BSF in one system. While combining the two is nothing new, that particular way is something we had not seen anywhere else. So we thought we had to see it for ourselves! Chickens are on top and BSF larvae at the bottom, chicken droppings fall directly on Larvae. Chicken manure is devoured almost instantly by the large number of larvae. Here we have a system that needs little human intervention. We let you take a minute to appreciate the elegance of the simplicity of this system. Like all systems it has its limits too. The living conditions of BSF larvae can get too dry. When it’s the case, the crew will spread additional feed in a liquid form. Made mostly of tofu dregs and expired bread, plus some other ingredients, it is nutritious and liquid. Good living conditions are restored in the system and larvae do not try to escape. In short, a great working example that we hope will inspire any BSF enthusiast out there!

We would like to extend our sincerest gratitude to Mr Hardi for sharing his experience with us in details, including his own calculations!

At Ecotica we are huge fans of Black Soldier Flies! Some time ago, while experimenting with those cheeky little insects, it dawned on us that their potential for human waste management was huge. Implementing BSF solutions can be challenging indeed but the reward is significant. We can’t wait to see more people adopting this nature-friendly solution.