Crop diversity between 20 and 90 percent crop losses in the Congo. The FAO emergency relief and rehabilitation program is assisting vulnerable returnee populations in the African Great Lakes Region through mass propagation and distribution of CMD resistant or highly tolerant cassava. A well known occurrence of disease susceptibility in crops lacking diversity concerns the 'Gros Michel', a seedless banana that saw world marketing in the 1940s. As the market demand became high for this particular cultivar, growers and farmers began to use the Gros Michel banana almost exclusively. Genetically, these bananas are clones, and because of this lack of genetic diversity,
Crop art figures are found all over the world; though many do not attribute their manifestation to visitations by alien beings. Crop Circles are sometimes called crop formations, agroglyphs, or pictograms. Some are also created by recognized "landscape artists" for commercial purposes. Crop art Crop art is an environmental art practice using plants and seeds in the landscape to create statements, marks and/or images. Agnes Denes, Matthew Moore (artist), Dennis Oppenheim and Stan Herd are practitioners of Crop art. Some works of Land art, and Earth art are similar in scale, and can be seen only from aerial viewpoints. One folk art