Triticum compactum erinaceum shallow. Its cheeks are usually angular. "T. compactum erinaceum" was grown alongside other species of wheat by Jesuit Monks in Monterey County California during the late eighteenth century. "T. comactum erinaceum" was presumed extinct after 1822, but proved to exist when in the summer of 1917 when it was rediscovered by E. F. Gaines, of the Washington Agricultural Experiment Station growing in the vicinity of May View, Washington. Again In 1929 "T. compactum erinaceum" was reported to be growing, in Douglas County, Oregon, on 322 acres. Triticum compactum erinaceum Triticum compactum erinaceum, also called California Club Wheat or Mayview wheat,
Cover crop ("Sinapis alba") and radish ("Raphanus sativus"). They can be grown after a main (cereal) crop and trap nematodes, for example the beet cyst nematode and Columbian root knot nematode. When grown, nematodes hatch and are attracted to the roots. After entering the roots they cannot reproduce in the root due to a hypersensitive resistance reaction of the plant. Hence the nematode population is greatly reduced, by 70-99%, depending on species and cultivation time. Other cover crops are used to attract natural predators of pests by providing elements of their habitat. This is a form of biological control known as habitat