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When thistles bolt and begin to flower each spring, folks who want to control them call the Noble Research Institute. By the time they call, however, it is usually too late in the season. Once thistles become reproductive, they are much harder to control and may have already produced viable seed.

I've had more calls on sandbur control in 2014 than I can ever remember. While it is obviously too late to do anything about them this year, plans can be made for next year.

While weed wipers have been all but forgotten among row crop farmers, many pasture and range producers in the United States have never heard about them. There is great potential for using wick...