Biological fungicides can cure many diseases. Any plant is associated with common plant diseases. You know when your plant gets sick and this is when you notice that there are anomalies in the plant. These symptoms vary depending on the color of the foliage, blurred stem growth, stem discoloration, leaf rot, leaf wilting, root rot and so on. Basil fungicides work to prevent these symptoms. The same can be said of the basil plant species. Basil is a well-known herb used for ornamental, medicinal and culinary purposes and has few diseases. Basil leaves are usually susceptible to disease during the wet season, the period in which they are susceptible. The type of disease can be fungal or bacterial depending on the conditions in which the plant grows, the care needed and the amount of exposure. However due to the low level of chemicals (fungicides and pesticides) specifically designed for use in basil. There is a lot to know about common basil diseases and sufficient or indigenous methods that can be taken to ensure their quality and marketing.