TY - JOUR AU - Perring, Thomas M. AU - Cooper, Arthur AU - Kazmer, Dave J. AU - Shields, Clyde AU - Shields, Jon TI - New strain of sweetpotato whitefly invades California vegetables JF - California Agriculture JO - Calif Agr Y1 - 1991/11/01 VL - 45 IS - 6 SP - 10 EP - 12 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v045n06p10 AB - In 1990, a new strain of sweetpotato whitefly invaded Southern California agricultural regions, inflicting heavy damage on cruciferous crops, Problems related to this new strain have impacted vegetable growers throughout California and other growing regions. In the Imperial Valley, 95% of the 1991 fall melons were disced and total losses to summer and fall crops have been estimated at over $120 million.