Herbicide Injury: Curling of the leaves was seen with the use of a hormonal herbicide (2,4-D) applied to a nearby lawn [Photo]. Herbicides may drift with the wind from the area of application to nearby susceptible plants. Additionally, ester formulations of 2,4-D may volatilize (i.e. become a vapor after they are applied) and move to non-treated areas. Herbicide injuries of this type are not likely to cause permanent damage to trees.

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