We generated
spatial data of rice yield per hectare based on rice production
data (Monfreda et al., 2008) and multiplied the harvested
rice area proportion with the local yield per hectare planted with
rice. The pest occurrence data was compiled from pest monitoring
reports of the Thai Department of Rice (http://www.ricethailand.
go.th/). We compensated for a localized and variable occurrence
of WBP by averaging the frequency of WBP occurrence across all
monitoring stations.