By Lauren Lazaro, Strahan, Ronald E., Stephenson, Daniel O., Orgeron, Albert, Mudge, Christopher, Miller, Donnie K.
LSU AgCenter
Weeds are the largest economic threat to agriculture as a whole, whether in row crops, aquatics, rangelands or pastures. In Louisiana, the same conditions that help crops flourish also bring weeds. The long growing season, warm weather and high levels of precipitation allow weeds to emerge and set seeds over longer periods of time. A wide variety of soil types and agricultural systems also means a wide variety of weeds.
Following are some of the weeds that grow in Louisiana that are a threat not only to agricultural production but to landscapes and waterways.