Insects control prickly pear cactus
R. D. Goeden, University of Californa
C. A. Fleschner, University of Californa
D. W. Ricker, University of Californa
California Agriculture 22(10):8-10. DOI: 10.3733/ca.v022n10p8.
R. D. Goeden is Lecturer in Biological Control and Assistant Entomologist, Department of Biological Control, University of Californa, Riverside. C. A. Fleschner is Professor of Biological Control, Department of Biological Control, University of Californa, Riverside. D. W. Richer is Laboratory Technician IV, Department of Biological Control, University of Californa, Riverside.
A considerable degree of control of prickly pear cacti has been achieved on Santa Cruz Island rangeland, as a result of ecological manipulation: primarily, through the introduction of an effective natural insect enemy of the prickly pear; and secondarily, by the initiation of better range management in promoting plant competition through wild sheep eradication and restricted cattle grazing.