Smith, H.S. 1941 Status of biological control of scale pests.. California Citrograph 26(3): 58, 76-77.
Notes: Species reviewed include yellow scale, red scale and black scale, and their natural enemies.
Smith, H.S. 1941 Status of biological control of scale pests.. California Citrograph 26(3): 58, 76-77.
Notes: Species reviewed include yellow scale, red scale and black scale, and their natural enemies.