Mature cattle grazing in pastures with rapidly growing grass are sometimes afflicted with a disease called grass tetany. The cause is a lack of magnesium in the grass. Here's what to look for and how to treat it.
Q: My so-called lawn needs help — it consists of clumps of grass with bare spots between. My small yard is completely fenced with a large apple tree shading much of it, so the grass gets at most 3 to 4 hours of sun ...