The director of a riding school claims the horses' grazing area "has been overrun with ragwort".

Madagascar ragwort (Senecio madagascariensis), with bright yellow, daisy-like flowers, is now consideredwidespread in the Far North, particularly on cattle farms.

Tansy Ragwort is a class B weed native to Northern Africa, Asia and Europe. This weed is toxic to humans and livestock. All plant parts are toxic, with the highest number of alkaloids in flowers, then ...

Blackgrass, an annual grass that is non-native to Ireland, has been designated as a noxious weed for the first time.

Natural weed killer sprays may be hard to find, but as they have an ingredient list full of understandable items, it’s easy to make your own.

The Southern ragwort is also called “sneeze weed” by some locals because it causes sneezing among the most sensitive persons.

HELENA -- They infest a portion of Montana the size of Florida and Arkansas combined, and go by names like tansy ragwort, yellow toadflax and houndstongue. One species, knapweed, takes ...

Tansy ragwort (Jacobaea vulgaris) is an invasive weed that is native to Europe but is now widely found across the Pacific Northwest. Fortunately, it mostly thrives in pastures, landfills, and ...

County farmers faced an onslaught of tansy ragwort in September 1949. With many crops still standing on farms throughout Clark County, the toxic weed’s spread happened at the worst possible time.