BARNYARDGRASS (ECHINOCHLOA-CRUS-GALLI) CONTROL WITH POSTEMERGENCE APPLICATIONS OF PROPANIL AND CLOMAZONE IN DRY-SEEDED RICE (ORYZA-SATIVA)

Field experiments were conducted to compare barnyardgrass control and rice grain yield following a single postemergence (POST) application o f propanil plus clomazone with single or repeat POST applications of p ropanil alone or single POST applications of propanil plus pendimethal in, molinate, quinclorac, or thiobencarb. In four of 10 experiments, p ropanil plus clomazone controlled barnyardgrass better than single or repeat applications of propanil alone or single applications of propan il plus pendimethalin, molinate, quinclorac, or thiobencarb. The most consistent increase in rice yield over a single application of propani l occurred where clomazone was applied in mixture with propanil.