Panama disease characterize Panama disease of banana: These symptoms often get confused with the symptoms of bacterial wilt of banana, but ways to differentiate between the two diseases include: Once a banana plant is infected, it continues to grow and any new leaves will be pale in color. Recovery is rare, but if it does occur, any new emerging suckers will already be infected and can propagate disease if planted. "Fusarium oxysporum" f. sp. "cubense" (Foc) is most prominent in banana, but some other relatives are also susceptible to infection. Different races of the disease are used to classify different major hosts
Crop diversity Genes from Bt can be inserted into crop plants to make them capable of producing an insecticidal toxin and therefore a resistance to certain pests. Bt corn (maize) can however adversely affect non-target insects closely related to the target pest, as with the monarch butterfly. Crop diversity Crop diversity is the variance in genetic and phenotypic characteristics of plants used in agriculture. Over the past 50 years, there has been a major decline in two components of crop diversity; genetic diversity within each crop and the number of species commonly grown. Crop diversity loss threatens global food security, as the