An IC-RT-PCR method used a mixture of mAbs 1D11 and 6A8 as capture antibodies was developed to detect RDV in samples. A single gene fragment of approximately 400 bp was amplified by IC-RT-PCR from RDV-infected rice plants or viruliferous leafhoppers, while no DNA band was amplified from the healthy, RBSDV-, SRBSDV-, RRSV- or RSV-infected rice plants or non-viruliferous leafhoppers (Fig. 4A). The sensitivity analysis indicated that the IC-RT-PCR detected RDV in infected rice tissue crude extracts diluted at 1:655,360 (w/v, g mL−1), and in individual viruliferous leafhopper crude extract diluted at 1:3,276,800 (individual leafhopper/μL) (Fig. 4B and C).