Weed control issues for 2023 include Italian ryegrass control; nontraditional weed species (pre- and/or postplanting); poor grass control in all crops; weed management in furrow-irrigated rice; off-target herbicide movement; and tank contamination/misapplication. A variety of factors affect herbicide performance (both efficacy and effectiveness): weed factors, environmental factors, herbicide factors, mixing factors, equipment factors, and farm factors.