Canada thistle, Cirsium arvense, is native to Europe but was introduced accidentally to North America in the 1600s. Since that time, it has become a serious agricultural pest, occupying space in ...

NEOSHO, Mo. - The Newton County commissioners are gearing up to do battle with a perennial plant nuisance. The musk thistle, classified as a noxious weed in Missouri, doesn't produce its ...

Cirsium arvense Characteristics Canada thistle, a terrestrial herbaceous perennial in the Asteraceae family, is an open-land invasive that prefers disturbed upland areas as well as wet areas with ...

My arms were scratched and red, and I was assaulting a colony along the creek when a miraculous event appeared before my eyes. There, on top of a purple thistle bud, two ladybugs were making love.

Canadian thistle is most sensitive to 2,4-D and dicamba when applied at bud stage, prior to blossoms. Stinger and Curtail need to be applied earlier, from a 3-inch height to just prior to buds.

Tall thistle is generally no taller than musk thistle -- 5 to 7 feet tall. But it is more of a bushy plant. Tall thistle is often found in drainage ditches and wetland areas and not in pastures.

Californian thistle is one of the most common thistle species in New Zealand. It is very troublesome in pastures because it is so difficult to control. Once a plant is established in pasture, it forms ...