stored hay

What Is A Hay Mite? Hay or straw itch mites, Pyemotes tritici, in the family Pyemotidae, are tiny (about 0.2 mm long) creatures. They are common parasites of insects infesting dried plant material, particularly grain, dried beans and peas, straw, hay and other dried grasses. … The rash is sometimes known as grocer’s itch. What