This NebGuide discusses the effects of Banvel and 2,4-D on soybean and fieldbean growth and yield. The degree of crop injury depends on the herbicide, rate, and crop growth stage at the time of drift. 14K JPG 20K JPG Figure 1. Drift damage in the field can usually be recognized by a characteristic pattern.
Plants express symptoms in a gradient from one end of the field to the other.
23K JPG 31K JPG Figure 2. Damage symptoms from Banvel exposure. Susceptibility Fieldbeans Fieldbeans exhibit an increasing susceptibility to both 2,4-D and Banvel as they progress through the growing season. They are often capable of recovering from damage caused by 2,4-D and Banvel drift early in the growing season. In general, Banvel causes damage earlier and at lower levels than does 2,4-D. Table I. Yield response of fieldbeans as affected by herbicide, level of herbicide, and growth stage of fieldbeans.