Monitor Wind Speed When Applying Herbicides

Follow guidelines for wind speed during herbicide applications.

Environmental conditions play a significant role in determining effective spray coverage and weed control. Ignoring wind speed can result in off-target movement and crop injury. Low or no wind movement can indicate a temperature inversion, which can increase movement of small spray particles and herbicide vapors. High wind speed can increase drift potential and off-target herbicide movement.

Use these guidelines when applying DuPont™ FeXapan™ herbicide Plus VaporGrip® Technology:

Wind Speed

Apply FeXapan™ herbicide Plus VaporGrip® Technology when wind speed is 3 to 15 miles per hour; preferred wind speed is 3 to 10 miles per hour.

Wind Speed Parameters

Dave Roome describes appropriate wind speeds during application of FeXapan™ herbicide.
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  • In most situations, apply FeXapan™ when wind speed is between 3 and 15 miles per hour for best results.
  • Preferred wind speed is 3 to 10 miles per hour. Do not apply FeXapan™ when wind speed is 10 to 15 miles per hour unless a dicamba-tolerant crop, such as corn, is downwind.
  • Do not apply FeXapan™ when wind speed is less than 3 miles per hour.
  • Do not apply FeXapan™ when wind is blowing toward adjacent commercially grown crops, including but not limited to commercially grown tomatoes and other fruiting vegetables (EPA crop group 8), cucurbits (EPA crop group 9) and grapes.

Follow FeXapan™ best practices and stewardship guidelines for effective weed control and to minimize risk of off-target herbicide movement.

DuPont FeXapan herbicide Plus VaporGrip® Technology herbicide is not registered in all states. See your DuPont retailer or representative for availability in your state.

The information provided on this website is for reference only. Always refer to the product labels for complete details and directions for use.