What can we spray on these horrible weeds to kill them? I also need to know if the cows and horses need to be removed from the pastures, and if so, for how long? We've tried mowing, but they come back even worse.
Dog Fennels and Burr Bushes
This article may help: https://www.gardeningknowhow.com/plant-problems/weeds/controlling-sandbur-weeds.htm
You may find more articles by entering weeds into the search window at the beginning and end of the article.
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