What is Black Soldier Fly Larvae Composting?
Black Soldier Fly Larvae (BSFL) composting is an innovative method of breaking down organic waste using the larvae of the black soldier fly. These larvae are incredibly efficient decomposers, capable of processing food waste in a couple of weeks to as little as a few days–much faster than traditional composting, which can take months or even years.
Why Use Black Soldier Fly Larvae?
- Speed: BSFL are up to 7 times faster than red-worms at breaking down organic matter.
- Sustainability: This method more effectively minimizes greenhouse gas emissions compared to traditional composting.
- Odor control: BSFL help suppress odors and harmful bacteria
- Byproducts:
- Nutrient-rich fertilizer
- High-protein animal feed from the larvae themselves
Are BSFL safe?
Yes! Adult black soldier flies don’t bite, sting, or spread disease - in fact, they don’t even eat. The sole purpose of the adults is to mate and lay eggs in decaying organic matter. The larvae, however, are voracious eaters, consuming twice their body weight in food daily.
Ideal Conditions for BSFL Composting
- They thrive in warm climates, ideally 77-95°F.
- Keep the compost bin moisture at around 60%–moist but not soggy.
- Feed them mainly kitchen scraps like fruits, vegetables, and grains.
For more information and tips on how to setup black soldier fly larvae composting bins, check out the following resources:
- Black Soldier Fly Composting Guide
- Black soldier fly composting on Indiana urban farms - Morning Ag Clips
- Black Soldier Fly Compost: How to Make and Use It (2025)
Learn more by joining us on August 20th for our free webinar From Waste To Wonder: Fly Larvae Composting featuring Dr. Laura Ingwell, who will discuss more about the black soldier fly larvae composting method!
