Bull thistle (Cirsium vulgare), also sometimes called spear thistle, Fuller's thistle, and lance-leafed thistle, is a biennial weed found in almost every state and territory in the USA ...

May and June are the months when we frequently see both native and non-native forbs begin to grow and start to flower in ...

Prosulfuron is another Sulphonylurea that can be used to control sow-thistles in maize. Clethodim is an active ingredient found in many herbicides. It has been found to be effective at controlling ...

Fall is the best time to control some notorious weeds in pastures and other grasslands ... Fall is the ideal time to treat many on the noxious thistle list, including Canada thistle, musk thistle and ...

Every spring, my small pasture gets populated with blackberries and bull thistle. We love the berries...the bull thistles, not so much. Those prickly leaves look like they could draw blood, the plant ...

Canada thistle (Cirsium arvense) is a creeping perennial broadleaf that is native to the Mediterranean area. It spreads ...

Bull thistle (Cirsium vulgare) is another biennial (sometimes annual) invasive weed you should be wary of since it's prevalent across all U.S. states. Its giveaways include the 2-inch wide ...

There are six species on the Iron County noxious weeds list: Whorled milkweed, Asclepias verticillata; bull thistle, Cirsium ...

Winter in Louisiana allows us to observe numerous species of plants commonly called thistles. These weeds appear as a uniform rosette of ground-level leaves for much of the winter and will send up ...