(Dendranthema grandiflorum) is a perennial herb grown well in Egypt. It is highly attractive and charming short-day plant, which behaves both as an annual as well as perennial flowering herb (Arora, 1990). There are about 160 species of chrysanthemum. The inflorescences which call a flower head are greatly required in markets because of its beautiful shape and longevity in vases. The chrysanthemum plants are flowering only under short day conditions. The importance role of chrysanthemum is grown both as potted plants and as cut flowers during the fall months when the other flowers are scarce to supply the flower markets. They are the best keeping flowers for home use, and one of the most adaptable to design work. Chrysanthemum widely used in two types namely standard" Art Queen and White Zambia"(Elnemr, 2018). Chrysanthemum is vegetative propagated flowering plant and is affected by many diseases caused by fungi like vascular wilt diseases caused by Fusarium oxysporum f. sp. chrysanthemi and Verticillium dahlia (Dreistadt, 2001) and bacterial diseases severely reducing the crop yields were bud blight