The best suggestion for weed management in salad mix is use of the Stale Seedbed Technique. Glyphosate (Roundup), paraquat (Gramoxone Inteon), and pelargonic acid (Scythe) are registered for stale seedbed use. Flaming can also be used. Salad mix is usually planted thick and often out-competes weed growth after stale beds are used. Prepare the seedbed at least 2 to 3 weeks prior to planting so that weeds have adequate time to emerge. After crop emergence keep cultivations shallow to protect crop roots. Do not move soil into the crop row as lettuce plants may be more susceptible to diseases when soil is mounded against the stems of the crop.