Musk thistle is a bi-annual noxious weed that germinates in the fall, winters over as a rosette, bolts and produces seed in the spring. In the fall or early spring, is an excellent time to inspect your pastures and scout for musk thistle infestations before the busy spring planting season arrives.
Treating Musk Thistle
Musk thistle should be treated early in the spring before the plants bolt for optimum control. Herbicides recommended for treatment include: 2,4-D, Tordon 22K and Escort. Weed and feed programs mixing Tordon 22K with liquid fertilizer and applying on brome grass pastures is also very effective in the control of musk thistle.