When it comes to thistle control in pastures, many growers have been missing the boat on acceptable control. The key to thistle control is using the right product at the right time. The best time for any product is at the rosette stage. Remember, you can still get good control from 2,4-D, but it all depends on timing. Use the chart below to properly choose herbicide based off of growth stage. If you have not done so, check your pastures now to determine what growth stage you thistles are in. Please pay attention to specific grazing restrictions on label.