Fertilome Weed-Out Lawn Weed Killer with Trimec treated areas are safe to return to once dry. Typically after at least 4 hours.
Fertilome Weed-Out Lawn Weed Killer with Trimec should not be applied to edible vegetation. Corn is one of those plants that is highly susceptible to herbicides and we cannot think of any herbicide that can be safely used around corn for post emergent control. You may want to contact your local department of agriculture for more advice on weed control around your veggies.
If the ground is not water logged, Fertilome Weed Out Lawn Weed Killer can be applied to the soil. The mixing ratio is 2 - 4 oz. per 1 gallon of water per 1,000 sq. ft.