Fragmented governance of international value chains, operating in multiple jurisdictions, is insufficient to prevent social and environmental mismanagement. Smart Mixes, which are combinations of compulsory and voluntary measures, have been proposed as a possible means of securing environmental and social standards, but the concept has not been operationalized in the academic literature. The results suggest that Smart Mixes are effective when they cover a specific issue under conditions in which enforcement mechanisms create a level playing field: thereby aligning public and private sector interests. The keys to success in a Smart Mix include positive interactions, harmonization, and complementary and supportive measures, which combine to motivate engagement by the private sector. We conclude that Smart Mixes can contribute to sustainability in value chains but their effectiveness is dependent on the strength of the relationships between the measures that compose them.

published by FiBL and IFOAM – Organics International

Soil-dwelling insect pests may cause considerable damage to crops worldwide, and their belowground lifestyle makes them hard to control. Amongst the most promising control agents for subterranean pests are soilborne entomopathogenic fungi (EPF) such as Metarhizium brunneum. Albeit EPF can be highly pathogenic to their target pest species under laboratory conditions, their efcacy in the feld is often limited due to adverse environmental conditions. Here, we test for the first time if the efcacy of EPF can be improved when they are augmented with trap crops.