This project is a follow-up study to a separate project that evaluates the effects of providing training and certification on Good Agricultural Practices (VietGAP) on farming and trading practices in the dragon fruit supply chain of Vietnam. One of that project’s main intervention is to provide certification to farms conditional on satisfying several requirements – pesticide residue testing is one of them. In the context of the project as well as what has been normally practiced, there is no designated pesticide test center for VietGAP certification and farmers can choose from several certified institutions ranging from local government laboratories to private laboratories in major cities.
In this project, the intervention will assign farmers to specific laboratories to conduct pesticide residue testing. Farmers will be informed about pesticide testing and their lab assignments one month before the date of sample collection, or harvest date. To collect test samples, specialists will visit farms on the scheduled date and, upon collection, directly send the samples to the laboratories. To test for difference in performance by testing agency, dragon fruit samples from the same farm will be sent to multiple labs. Surveys will be administered to farmers, intermediaries, and consumers (end-users) to elicit their beliefs on product quality, certificates, and pesticide residue testing.