TY - JA AU - Zuniga,E. TI - Biological control of cereal aphids in South America SN - 0471-4091 U1 - 92-065082 PY - 1991/// KW - America KW - Aphididae KW - Aphidoidea KW - Arthropoda KW - Hemiptera KW - Homoptera KW - Insecta KW - Metopolophium KW - Natural enemies KW - Noxious animals KW - Pests KW - Pests of plants KW - Plant products KW - Sitobion KW - Sternorrhyncha N1 - references. In the series analytic: Aphid-Plant Interaction: Populations to Molecules / edited by D.C. Peters, J.A. Webster, and C.S. Chlouber. Paper presented at a symposium held August 12-17, 1990, Stillwater, Oklahoma T2 - Miscellaneous Publication Agricultural Experiment Station, Oklahoma State University ER -