Technical Abstract: Weed control in organic peanut production is difficult and costly, which limits expansion of the production system. Sweep cultivation in the row middles is effective, but weeds remain in the crop row causing yield loss. Research trials were conducted in Tifton, GA to evaluate implements and frequencies of cultivation to improve in-row weed control in organic peanut. The experimental design was a split-plot. Main plots were two cultivation implements; a tine weeder and PTO-powered brush-hoe. Sub-plots were seven frequencies of cultivation; vegetative emergence of peanut (VE), 1wk after VE, 2wk after VE, sequential combinations of VE/1wk, VE/2wk, and VE/1wk/2wk. The tine weeder tended to be easier to operate and performed more consistently than the brush-hoe. Both implements performed best when initial cultivation was at VE, compared to delays in the initial cultivation. Delaying the initial cultivation reduced overall effectiveness. Plots with the best weed control from cultivation were handweeded to control escapes and harvested for peanut yield. The best combination of in-row weed control, minimal use of salvage handweeding, and maximum peanut yield resulted from sequential cultivation at VE/1wk, using either the tine weeder or brush-hoe. While improvements were made in controlling in-row weeds using cultivation, additional modifications in peanut cultural practices are needed to facilitate peanut competition with weeds.