TY - JOUR AU - Daane, Kent M. AU - Caltagirone, Leopoldo E. TI - Biological control of black scale in olives JF - California Agriculture JO - Calif Agr Y1 - 1989/01/01 VL - 43 IS - 1 SP - 9 EP - 11 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v043n01p9 AB - Cultural practices that improve biological control of black scale in olive orchards are more common in northern than southern California orchards. A parasite of black scale, recently imported from Spain, has become established in northern orchards and may in time aid in black scale control.