Abstract: Based on a four-year panel dataset of households collected in rural Pakistan, we examine the impact of an intervention on households’ capacity to reduce income losses due to attacks by wild boars. A local NGO implemented the intervention as a randomized controlled trial at the beginning of the second year. We find that the intervention was highly effective in eliminating the crop-income loss in the second year, but that effects disappeared in the third and fourth years. Our finding suggests the difficulty in technology transfer through the training or the high implicit cost incurred by the households in implementing the treatment. Therefore, the intervention was not sustainable at the household level. Nevertheless, due to spillover effects, the intervention could have been cost-effective at the project level