| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
7961
|
Echinochloa crus-galli
|
Commerce
|
Observational
|
Field
|
Echinochloa crus-galli (barnyard grass) was found in 58% of the cornfields surveyed in Ontario.
|
Essex and Kent counties, Ontario
|
24903
|
|
7962
|
Echinochloa crus-galli
|
Commerce
|
Experimental
|
Laboratory
|
Estimated corn yield losses of 38% were reported for cornfields with an average Echinochloa crus-galli (barnyard grass) density of 9 plants/m2.
|
|
24891
|
|
7963
|
Echinochloa crus-galli
|
Commerce
|
Experimental
|
Laboratory
|
Echinochloa crus-galli has been observed to impact at least 36 different crops (e.g., rice, lettuce, cotton, tomato) in at least 61 different countries.
|
Sunderland, Massachusetts, USA
|
24890
|
|
7964
|
Echinochloa crus-galli
|
Commerce
|
Observational
|
Field
|
The longer Echinochloa crus-galli (barnyard grass) is allowed to grow with a desired crop species, the greater the reduction in yield.
|
United States Cotton Research Station, Shafter, California
|
24907
|
|
7965
|
Echinochloa crus-galli
|
Commerce
|
Experimental
|
Laboratory
|
Experiments conducted in Sunderland, Massachusetts showed that Echinochloa crus-galli (barnyard grass) growing with tomato crops reduced the marketable fruit weight from 26-84% depending on density.
|
Sunderland, Massachusetts, USA
|
24890
|
|
7966
|
Echinochloa crus-galli
|
Commerce
|
Experimental
|
Laboratory
|
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.
|
|
24909
|
|
7967
|
Echinochloa crus-galli
|
Commerce
|
Observational
|
Field
|
In China, densities of 25 plants/m2 of Echinochloa crus-galli (barnyard grass) reduced rice yield by 50%.
|
China
|
24894
|