Biofactory of Ladybugs
Status
ongoingCity
Belo Horizonte
Main actors
City Government
Project area
Whole City/Administrative Region
Duration
Ongoing since 2018
The establishment of the Biofactory was driven by the need to regulate the population of whiteflies, specifically Singhiella simplex (Hemiptera: Aleyrodidae). These pests predominantly infest Ficus macrocarpa trees in areas where these trees line the streets and have been declared as Cultural Heritage by the Municipality of Belo Horizonte. Furthermore, the Biofactory was structured to accommodate the needs for insect management in urban agricultural initiatives, including community gardens and backyards that cultivate food. By controlling and regulating the population of undesired insects, the Biofactory boosts the variety of biological control agents, thereby augmenting the overall effectiveness of pest control.
The Environment Secretariat has allocated financial resources in its budget for the upkeep of the Biofactory, a facility under the jurisdiction of Belo Horizonte City Hall. An initial investment of around $10,000 was used to revamp the facility, while the most significant annual expenditure is the salary disbursement for three biologists and two interns. Given the initiative's success, the Municipality aims to set up eight more units in the forthcoming years, as the promising results warrant additional investments.
Mastering insect reproduction and maintenance techniques in the first half of 2019, the project started ramping up the population of these beneficial insects for release in designated areas. This release of natural predators commenced in April 2019, and early 2022, the distribution was well underway. The project is currently in its expansion phase, aiming to distribute an annual count of 50,000 such insects. Alongside insect release, the project also holds environmental education programs that tackle not just biological control but also wider sustainability issues in urban settings. To date, these educational activities have engaged approximately 3,000 participants.
There are multiple challenges and obstacles related to both infrastructure and ladybug production. From an infrastructure standpoint, issues like water seepage into the Bio factory’s facilities can jeopardize ladybug production, which requires a temperature-controlled setting. Also, insufficient space can impede environmental education activities for both children and adults. Concerning ladybug production and breeding, difficulties include maintaining the breeding stock amidst high demand, sourcing food for ladybugs (like procuring Anagasta kuehniella eggs as an alternative food source for environmental compensation) and managing the insects' life cycle.
The mass production of ladybugs and lacewings does not require sophisticated techniques or substantial investments, making their distribution accessible to various societal groups.
These groups include individuals growing food, as well as residents who maintain vegetable gardens, orchards, or home gardens. This ease of replication makes it feasible for the project to be adopted by not just small-scale farmers but also other public and private organizations, along with research and educational institutions.