Abstract
Enzyme-linked immunosorbent assay (ELISA) was adapted for detection of alfalfa mosaic, bean yellow mosaic (BYMV), clover yellow mosaic, clover yellow vein (CYVV), peanut stunt, red clover vein mosaic and white clover mosaic viruses. ELISA was versatile, practical and reliable in indexing forage legumes for viruses, and also differentiated between BYMV and CYVV. ELISA was well suited for large-scale screening programs, and its potential was further extended by mailing sensitized ELISA plates between cooperating laboratories.