Water Grass

Early Watergrass (Echinochloa oryzoides) is a monocot weed in the Poaceae family.  In Turkey this weed first evolved multiple resistance (to 2 herbicide sites of action) in 2009 and infests Rice.  Multiple resistance has evolved to herbicides in the Groups A/1, and B/2.  These particular biotypes are known to have resistance to bispyribac-sodium, cyhalofop-butyl, and penoxsulam and they may be cross-resistant to other herbicides in the Groups A/1, and B/2.