Pesticide lock-in in small scale Peruvian agriculture

- We find evidence for unsustainable technological lock-in to synthetic pesticides in the Mala and Omas Valleys of Peru
- Consulting a pesticide technician, amount of land, gender and growing apples were predictors of synthetic pesticide use.
- We examine barriers to adopting alternative techniques in network externalities, learning economies and adaptive expectations

Despite decades of research into the negative impacts of synthetic pesticides, farmers in Latin America continue to use pesticides at high levels and at a high cost to social and environmental sustainability. In this paper, we present a case study of pest management strategies in small-scale agriculture, focusing on the unsustainable technological lock-in of synthetic pesticides. Of the 196 smallholder farmers we surveyed in the coastal Mala and Omas Valleys of Perú, 22% of respondents experienced pesticide poisoning themselves or by an immediate family member. Additionally, the two most common pesticide categories reported in use are potent neurotoxins. We hypothesized that the farmers in the valleys were locked into synthetic pesticides due to uncertainty, coordination and learning associated with adopting an alternative strategy. Logistic regressions revealed gender (male), consulting an agro-chemical technician, quantity of cultivated land, and apple as a primary crop to be important predictors of synthetic pesticide use. Our findings suggest that these predictors represent the lock-in of synthetic pesticides through network externalities, learning economies and adaptive expectations. We conclude with opportunities to transition to sustainable pest management strategies at the local level in Latin American communities through interventions countering the lock-in of synthetic pesticides.