In 2001 and 2002, research was conducted at UC Desert Research and Extension Center evaluating lamb grazing for Egyptian alfalfa weevil, Hypera brunnipennis (Boheman) (EAW) control on alfalfa. Each year, lambs grazed alfalfa (Medicago sativa,var. CUF101) from January through March. Four wethers, mean initial weights 48.7 and 48.8 kg, respectively, grazed paddocks, 20.1 m x 20.1 m, for 10 to 14 d. Lamb grazing was compared to no grazing. Esophageal cannulas were placed in four wethers to detect insects in consumed alfalfa. In 2001, during the first three d of grazing, we counted 5.31±0.82 EAW larvae and 1.4±0.45 EAW eggs per g of extrusa DM. During the last three d of grazing, we counted 24.5±14.5 EAW larvae and 1.6±0.46 EAW eggs per g of extrusa DM. In 2002 we found 1.12±0.03 EAW eggs during the first three d of grazing and 0.25±0.09 EAW eggs per g of extrusa DM and during the last three d of grazing. In 2001, after the cessation of grazing, at first harvest, there were no treatment differences (P > 0.10) in hay yields, but grazed plots had higher percentage of leaf, lower NDF%, lower ADF%, and a higher CP% (P < 0.10). In 2002, at first harvest after the cessation of grazing, control plots yielded more hay (P < 0.10) than the grazed plots, no differences (P > 0.10) with regards to NDF%, ADF%, or CP%, but grazed plots had a higher (P < 0.10) percentage of leaf DM in hay than the control plots.