Foto de stock - Wattsburg, Pennsylvania - Horseweed (Erigeron canadensis or Conyza canadensis) growing throughout a field of soybeans. Also known as marestail, it is a problem for farmers and is often resistant to glyphosate and other herbicides.

Imagen: Wattsburg, Pennsylvania - Horseweed (Erigeron canadensis or Conyza canadensis) growing throughout a field of soybeans. Also known as marestail.

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