Weeds or wild plants?

Alopecurus myosuroides

Alopecurus myosuroides

---

Blackgrass

Alopecurus myosuroides is one of the most damaging weeds of winter cereals in England. Its distribution is closely linked to that of winter cereals. Although individual plants are not particularly competitive, it frequently occurs at densities in excess of 500 plants/m², causing severe loss of yields. Traditionally, it has been a weed of autumn sown crops, but in recent years has started to occur more frequently in those sown in spring. Control of this weed has become increasingly difficult, because of the selection of biotypes resistant to many of the herbicides used for its control. It is not a favored host to phytophagous insects, nor is it favored as a food for birds.

Competitivity (seedlings/m2)	12.5
Number of insect species recorded	6
Number of insect families	3
Relative direct importance to birds	Not enough information available
Occurence	38% (increasing)

Next weed