Status of puncturevine weevils and their host plant in California
Donald M. Maddox, University of California
Lloyd A. Andres, University of California
California Agriculture 33(6):7-9. DOI: 10.3733/ca.v033n06p7.
Donald M. Maddox is Research Entomologist, Biological Control of Weeds Laboratory, USDA Federal Research, Science and Education Administration, Albany, and Associate in the Agricultural Experiment Station, University of California, Berkeley; Lloyd A. Andres is Research Entomologist, Biological Control of Weeds Laboratory, USDA Federal Research, Science and Education Administration, Albany, and Associate in the Agricultural Experiment Station, University of California, Berkeley;
Thanks to imported biological controls, 32 counties report a decline in puncturevine.
They gratefully acknowledge the cooperation of County Agricultural Commissioners and their staffs in supplying information on current puncturevine acreages.