The possibility of sicklepod weed becoming resistant to herbicides is a potential concern for all Georgia peanut farmers, said Eric Protsko, a weed scientist with the University of Georgia College of Agricultural and Environmental Sciences.
Sicklepod weeds look similar to peanut plants, though the leaves are a little wider and a lighter green than those of the peanut plant. The weed is a concern for peanut farmers every year because the seed remains viable in the soil for at least five years and can germinate from a 5-inch soil depth. This makes the weed almost impossible to control with residual herbicides, and there are no peanut herbicides that provide adequate residual control.
Sicklepod is especially threatening, considering it is self-pollinating, meaning it doesn't require additional plants or insects to spread throughout a field. Approximately 14,000 seeds are produced per plant, far fewer seeds than Palmer amaranth.
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