| Impact ID | 7966 |
| Impact Type | Commerce |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | Echinochloa crus-galli (barnyard grass) has been found in 81% of tested rice seed lots and has reduced rice yields by up to 40% in one agricultural study. |
| Reference | 24909 |
| Cost | |
| Location | |