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Prickly sida (teaweed) is distributed throughout much of the temperate regions of the eastern two-thirds of the United States. This summer annual plant typically emerges from April to September. Although not very competitive with soybeans, prickly sida has been shown to reduce yields by 5 to 10 percent when emerging at a density of 20 plants per square foot. This fact sheet lists practices that can aid in management of this herbicide-resistant species.

Publication No. MX1134