This week in agriculture, we take a look at five stories you don't want to miss. One story, you will want to know about is a herbicide and weed resistance online course offered through Iowa State University. It may be something to keep you occupied when the snow is falling this winter. Plus, the cost of cover crops can be complicated. We have found a cover crop calculator to help you figure out how much the crop can cost with a burn down, cash price for the crop and the region where it's being grown. And it's been a wet fall, is there still time to apply limestone? Check out these stories and more in this week's gallery of stories not to miss.