Technical Abstract: Legume-cereal cover crop mixes are commonly used on organic vegetable farms on the central coast of California. These mixes are especially important in organic systems because of the legume's ability to fix nitrogen. This experiment tested the effect of 0, 1, and 2 passes with a rotary hoe on weed control in a legume-rye cover crop. The 1 pass treatment occurred 14 days after planting, and the 2 pass treatment occurred at 14 and 28 days after planting. The rotary hoe treatments did not affect cover crop density or biomass production. One pass with the rotary hoe reduced weed biomass by 77 percent, with no further decrease with the second pass. Rotary hoeing reduced seed production of chickweed and shepherd's purse by 81 and 93 percent, respectively. Rotary hoeing is an effective method to reduce weed populations in legume-cereal cover crop mixes.