Positive impact of constructed wetlands and biocontrol in the Ethiopian flower industry

Learn about the adoption of IPM and wetlands systems on rose farm Sher Ethiopia Plc (Afriflora) near lake Ziway, Ethiopia, and the resulting positive impacts explained in a research study commissioned by IDH.

The study investigates the impacts and describes the business case for constructed wetlands and Integrated Pest Management practices to reduce risks towards workers and the environment.

Read the summary report here

Publicly available on the IDH website, the report reviews the output and impacts of several projects implemented between 2014 and 2019 by Sher Ethiopia Plc (Afriflora) near lake Ziway in Ethiopia, in partnership with Koppert, Ecofyt, IDH and the Floriculture Sustainability Initiative (FSI).

The projects focused on two themes: (1) the construction of wetlands to reduce pesticide pollution to the lake, and (2) integrated pest management (IPM) practices based on the introduction of biological control (biocontrol) agents to replace the use of synthetic chemical pesticides. The study concluded that constructed wetlands and IPM practices are complementary, showing that the reduction in the use of chemical pesticides resulting from adoption of IPM leads to higher efficiency of the wetlands, and as such presents a  cost-effective opportunity of significantly reducing the risk to workers and the environment.

Furthermore, additional literary research links the findings to the status of regional production as well as the latest developments on wetland and IPM technology. It also includes consideration to further promote the use of wetlands and facilitate the development and uptake of current and new biocontrol options in the region and determines possible limitations to adoption of the interventions by neighboring farms.

Click here for the summary report

We also invite you to download the full report and access unique insights into the technical characteristics, benefits of the investments and barriers met by the projects partners, as well as conclusions and recommendations for different industry stakeholders to support further uptake of best practices and creating positive impacts.