Definition
Yellows is a plant disease characterized by chlorosis and stunting of the host plant.
Etymology (yellow). O.E. geolu, geolwe, from P.Gmc. *gelwaz (cf. O.S., O.H.G. gelo, M.Du. ghele, Du. geel, M.H.G. gel, Ger. gelb, O.N. gulr, Swed. gul "yellow"), from PIE *ghel-/*ghol- "yellow, green".