Use 16 ounces of Dicamba (Banvel) per acre of actively growing bindweed before, during, or after planting corn (but before corn emergence) if you have fine or medium textured soil with a 2% or more organic content.
Do not apply Dicamba until after corn emergence to sandy, sandy loam, or loamy sand soils or to soils with less than 2% organic content unless damage to corn in treated areas is acceptable.
Early Post-Emergence Treatment
Apply 16 ounces of Dicamba (Banvel) per acre from corn emergence through the corn's fifth leaf stage or when it reaches eight inches tall, whichever comes first. Apply only eight ounces Dicamba per acre if corn is more than eight inches tall. Reduce the rate to eight ounces per acre on coarse textured soils if corn damage is unacceptable.
Late Post-Emergence Hole
Apply eight ounces of Dicamba per acre when corn is between eight inches and 36 inches tall. Do not apply if you are within 15 days of corn tassel. We also recommend the use of drop nozzles if the corn is over 10 inches tall. (Read the label for restrictions on applying Dicamba to corn if there are soybeans growing nearby).
- Two applications of Dicamba may be made per year to bindweed growing in corn during the growing season, but do not exceed 1.5 pints per growing season. Use higher rates to control bindweed if only spot treating to prevent the bindweed problem from growing.
- The Dicamba rates in growing corn will only offer suppression of bindweed and will not eradicate bindweed on the acres. Late fall treatment of bindweed in row crop areas after harvest is a good way to get better control of the bindweed on your row crop acres. Contact the Noxious Weed Director for recommendations.
- Persistence over the course of many years is the only thing that can kill an established bindweed plant.