What are the indicators for the presence of temperature inversion?

Do not apply 2,4-D products when inversion conditions exist. The following are indicators of the presence of temperature inversion conditions:

  • Calm day with wind speed less than 3 mph;
  • Clear night;
  • Dust cloud hanging on the side of the road;
  • Dew or frost present on the ground;
  • Horizontal smoke pattern;
  • Ground fog in low-lying area.
No

No, the labels prohibit 2,4-D application if the wind is blowing toward susceptible plants listed on the label.

Can I apply new 2,4-D products when the wind is blowing in the direction of susceptible plants?

No, the labels prohibit 2,4-D application if the wind is blowing toward susceptible plants listed on the label.

No

Commercially grown tomatoes, and other fruiting vegetables (EPA crop group 8), cucurbits (EPA crop group 9), and grapes are listed as susceptible plants on the new 2,4-D product labels.

What are the susceptible plants listed on the label?

Commercially grown tomatoes, and other fruiting vegetables (EPA crop group 8), cucurbits (EPA crop group 9), and grapes are listed as susceptible plants on the new 2,4-D product labels.

No

The applicator must always maintain a 30 foot downwind buffer. To maintain the label required downwind buffer zone, the applicator must measure the wind direction prior to the start of any swath that is within 30 feet of a sensitive area. No application can be made in an area that is within 30 feet of a sensitive area if the wind direction is towards the sensitive area. Applicators can still use out-of-field non-sensitive crops and areas in the total buffer distance calculation. Follow all label requirements for the protection of sensitive areas.

What are the label buffer requirements for the use of new 2,4-D products?

The applicator must always maintain a 30 foot downwind buffer. To maintain the label required downwind buffer zone, the applicator must measure the wind direction prior to the start of any swath that is within 30 feet of a sensitive area. No application can be made in an area that is within 30 feet of a sensitive area if the wind direction is towards the sensitive area. Applicators can still use out-of-field non-sensitive crops and areas in the total buffer distance calculation. Follow all label requirements for the protection of sensitive areas.

No

Non-sensitive crops and areas include:

  • Roads, paved or gravel surfaces;
  • Areas covered by the footprint of a building, silo, shade house, feed crib, greenhouse, or other manmade structure with walls and or roof;
  • Agricultural fields that have been prepared for planting; and planted agricultural fields containing crops other than those listed under the “Susceptible Plants” section of the label (the applicator must evaluate all factors and make appropriate adjustments when applying these products).
What are non-sensitive crops and areas that do not need the 30 foot downwind buffer?

Non-sensitive crops and areas include:

  • Roads, paved or gravel surfaces;
  • Areas covered by the footprint of a building, silo, shade house, feed crib, greenhouse, or other manmade structure with walls and or roof;
  • Agricultural fields that have been prepared for planting; and planted agricultural fields containing crops other than those listed under the “Susceptible Plants” section of the label (the applicator must evaluate all factors and make appropriate adjustments when applying these products).
No

Any area other than the list of non-sensitive areas on the label are considered sensitive areas. For example: wooded area, water bodies, residential areas, etc.