The CHV genome consists of two open reading frames, open reading frames A and B (ORF A and ORF B) (cited). The management of epidemics by CHV was very effective in Europe, but it is much less in North America 13. The main use of CHV in North America is to control the wilt of individual trees, not to control population-level withering like in Europe. Despite its limited effectiveness in North America, CHV provides a useful means for plant pathologists to study factors influencing C pathogenicity.
For the first time in the 1890 's, plague was first reported when the first chestnut tree was infected and found in the tree in the New York Botanical Garden in 1904. Panic on this disease spread in the 1910s. A national committee was established. The farmers petitioned to cut down the trees with signs of withering. "A coward has burned trees, there is no branch office," the citizen demanded a piece of paper in Honesdale, Pennsylvania in the center of the chestnut tree. Even Boy Scouts is trying to save chestnuts by searching for withered trees in the forest as part of a multifaceted effort to build uninfected areas.
These trees are far away from the eastern coast canopy, but efforts are still being made to find ways to treat wilt disease. To tell the truth, they have not stopped since the trees died. Some of the scientists crossed pure American trees after mating chestnuts resistant to American chestnuts and Fusarium. Some people use other viruses to infect trees and kill the plague. By adopting a more state-of-the-art method, by sequencing the fungus that causes DNA of the chestnut of America and wilting, it guarantees that all trees reintroduced in the wild become true epidemics in part
Finding wild and mature American chestnuts is rare as it was discovered in national media coverage. According to the American Chestnut Foundation, trees are technically extinct. The wilt that kills them still lives in the wild. They rarely grow sufficiently to sow flowers and seeds, usually only seedlings die. Essentially, by the 1950's, a huge tree was engraved on shrubs. The problem is that fungi imported from Asia easily breed and adhere to the feathers of animals skin and birds. The spores are released during the storm and follow footsteps to other trees. Fungi infect trees through bark injury that is as small as the barks produced by insects. The paper in Pennsylvania reports that "the target seems to be buried with a small shooting hole".