TY - JOUR AU - Lewellen, Robert T. AU - Skoyen, Irvin O. TI - Beet western yellows can cause heavy losses in sugarbeet JF - California Agriculture JO - Calif Agr Y1 - 1984/01/01 VL - 38 IS - 1 SP - 4 EP - 5 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v038n01p4 AB - Not available – first paragraph follows: Virus yellows disease of sugarbeet is caused by a complex of aphid transmitted viruses. The three most important components of this complex in California are beet yellows virus (BYV), beet western yellows virus (BWYV), and beet mosaic virus. Each component is distinct and has unique virus particle structure, vector characteristics, and host range.