To evaluate the cross-reactivity of the ICS test strip, LMoV and two other common lily viruses (LSV, the lily symptomless virus;CMV, the cucumber mosaic virus) from strongly positive field samples, were tested with the test strip. LMoV-infected leaves were used as a positive control, and virus extraction buffer (0.2 M Tris/HCl buffer (at pH 7.5) containing 10 mM EDTA–Na2, 0.1% (w/v)polyvinyl polypyrrolidone and 0.1% (v/v) 2-mercaptoethanol) was used as a negative control.