Barnyardgrass, Echinochloa crus­galli (L.) infestations in rice can result in detrimental yield losses ranging from 30 percent to complete croploss.

Barnyardgrass is an agronomic issue in rice in south-central states, but its distribution ranges through many US states. In rice, rotating with soybean can help manage barnyardgrass populations by introducing more management options. Effective control during the soybean rotation is important for continued depletion of the population – otherwise the positive effects of rotation are negated. For more info, read this article from the University of Mississippi.

Resistant populations:

  • Group 2
  • Group 4
  • Group 5
  • Group 7
  • Group 13
  • Group 7 + 2
  • Group 1 + 8
  • Group 1 + 2 + 7 + 26


Take Action on Weeds: barnyardgrass

Identification, Biology, and Control of Barnyardgrass in Arkansas Rice – University of Arkansas

Barnyardgrass Management in Soybean and Rice, in the Mississippi Delta – University of Mississippi