Crop diversity fruit trees and banana plants) are cloned. A single pest or disease could threaten a whole crop due to this uniformity ("genetic erosion"). A well-known historic case was the Irish Potato Famine of 1845-1847, where a vital crop with low diversity was destroyed by a single fungus. Another example is when a disease caused by a fungus affected the monocultured 1970 US corn crop, causing a loss of over one billion dollars in production. A danger to agriculture is wheat rust, a pathogenic fungus causing reddish patches, coloured by its spores. A virulent form of the wheat disease, stem rust,
Norman Panama Court Jester," among other movies. He won an Edgar Award for "A Talent for Murder" (1981), a play he co-wrote with Jerome Chodorov. Panama continued to write and direct through the 1980s. He died in 2003 in Los Angeles, California, aged 88, from complications of Parkinson's disease. Norman Panama Norman Kaye Panama (April 21, 1914 – January 13, 2003) was an American screenwriter and film director born in Chicago, Illinois. He collaborated with a former schoolfriend, Melvin Frank, to form a writing partnership which endured for three decades. He also wrote gags for comedians such as Bob Hope's radio program